Integrated Taxonomic Information System - Search Results

Results of: Search in every Kingdom for Taxon Author(s) Name(s) containing 'Willis '
 
 Kingdom Animalia
  Asilus arizonensis Hine, Not Williston, 1909 – invalid
  Phylloscartes kronei Willis & Oniki, 1992 – valid – Restinga Tyrannulet
  Chilicola mirzamalae Willis & Packer, 2008 – valid
  Chilicola penai Willis & Packer, 2008 – valid
  Chilicola sardonyx Willis & Packer, 2008 – valid
  Cicindela willistoni hirtifrons Willis, 1967 – valid – Hairy-fronted Tiger Beetle
  Skutchia Willis, 1968 – invalid
  Chironomus anonymus Williston – valid
  Chrysops pachycerus Williston – valid
  Cophura scitula Williston – valid
  Culicoides phlebotomus (Williston) – valid
  Efferia staminea Williston – valid
  Hybomitra trispila sodalis Williston – valid
  Paratissa pollinosa (Williston, 1869) – valid
  Chrysops discalis Williston, 1880 – valid
  Neorhynchocephalus sackenii (Williston, 1880) – valid
  Rhynchocephalus sackenii Williston, 1880 – invalid
  Silvius pollinosus Williston, 1880 – valid
  Ascia metallica Williston, 1882 – invalid
  Blera humeralis (Williston, 1882) – valid
  Blera scitula (Williston, 1882) – valid
  Brachymyia lupina Williston, 1882 – invalid
  Brachymyia nigripes Williston, 1882 – invalid
  Brachyopa media Williston, 1882 – valid
  Brachypalpus femorata (Williston, 1882) – valid
  Brachypalpus pulcher Williston, 1882 – invalid
  Cheilosia lasiophthalmus Williston, 1882 – valid
  Cheilosia nigripennis Williston, 1882 – invalid
  Cheilosia occidentalis Williston, 1882 – valid
  Cheilosia parva Williston, 1882 – invalid
  Cheilosia rufipes Williston, 1882 – invalid
  Chrysogaster bellulus Williston, 1882 – invalid
  Chrysogaster stigmatus Williston, 1882 – invalid
  Chrysosyrphus nigripennis (Williston, 1882) – valid
  Conops affinis Williston, 1882 – invalid
  Conops burgessi Williston, 1882 – invalid
  Conops furcillata Williston, 1882 – invalid
  Conops obscuripennis Williston, 1882 – invalid
  Conops sylvosus Williston, 1882 – invalid
  Conops texana Williston, 1882 – invalid
  Conops xanthopareus Williston, 1882 – invalid
  Crioprora femorata Williston, 1882 – invalid
  Criorhina lupina (Williston, 1882) – valid
  Criorhina nigripes (Williston, 1882) – valid
  Criorhina scitula Williston, 1882 – invalid
  Criorrhina humeralis Williston, 1882 – invalid
  Cynorhinella bella (Williston, 1882) – valid
  Eristalis brousii Williston, 1882 – valid
  Eristalis montanus Williston, 1882 – invalid
  Eugeniamyia rufa Williston, 1882 – invalid
  Hadromyia grandis Williston, 1882 – valid
  Hadromyia pulchra (Williston, 1882) – valid
  Leucozona velutina (Williston, 1882) – valid
  Mallota dentipes Williston, 1882 – invalid
  Mallota sackeni Williston, 1882 – valid
  Myioletpa bella Williston, 1882 – invalid
  Neoascia metallica (Williston, 1882) – valid
  Orthonevra bellula (Williston, 1882) – valid
  Orthonevra stigmata (Williston, 1882) – valid
  Physocephala burgessi (Williston, 1882) – valid
  Physocephala furcillata (Williston, 1882) – valid
  Physocephala texana (Williston, 1882) – valid
  Physoconops obscuripennis (Williston, 1882) – valid
  Physoconops sylvosus (Williston, 1882) – valid
  Platycheirus parvus (Williston, 1882) – valid
  Sphecomyia pattonii Williston, 1882 – valid
  Spilomyia interrupta Williston, 1882 – valid
  Syrphus disjunctus Williston, 1882 – invalid
  Syrphus velutinus Williston, 1882 – invalid
  Volucella facialis Williston, 1882 – invalid
  Xanthogramma divisa Williston, 1882 – invalid
  Cyrtopogon dasylloides Williston, 1883 – valid
  Cyrtopogon dubius Williston, 1883 – valid
  Cyrtopogon gibber Williston, 1883 – invalid
  Cyrtopogon praepes Williston, 1883 – valid
  Dalmannia picta Williston, 1883 – valid
  Dasylechia atrox (Williston, 1883) – valid
  Dasyllis unicolor Williston, 1883 – invalid
  Dioctria nitida Williston, 1883 – invalid
  Dioctria sackeni Williston, 1883 – invalid
  Eudioctria nitida (Williston, 1883) – valid
  Eudioctria sackeni (Williston, 1883) – valid
  Hyperechia atrox Williston, 1883 – invalid
  Laphria anthrax Williston, 1883 – invalid
  Laphria canis Williston, 1883 – valid
  Laphria ferox Williston, 1883 – valid
  Laphria pubescens Williston, 1883 – invalid
  Laphria unicolor (Williston, 1883) – valid
  Laphria vivax Williston, 1883 – valid
  Laphria xanthippe Williston, 1883 – invalid
  Lestomyia fraudiger Williston, 1883 – invalid
  Lestomyia fraudigera (Williston, 1883) – valid
  Metapogon gibber (Williston, 1883) – valid
  Myelaphus rufus Williston, 1883 – invalid
  Nausigaster punctulata Williston, 1883 – valid
  Neorhynchocephalus volaticus (Williston, 1883) – valid
  Nicocles abdominalis Williston, 1883 – valid
  Nicocles rufus Williston, 1883 – valid
  Oncomyia baroni Williston, 1883 – invalid
  Oncomyia modesta Williston, 1883 – invalid
  Rhynchocephalus volaticus Williston, 1883 – invalid
  Stylogaster neglecta Williston, 1883 – valid
  Thecophora modesta (Williston, 1883) – valid
  Euceratomyia pergandei Williston, 1884 – invalid
  Pelecocera pergandei (Williston, 1884) – valid
  Adoxomyia argentata (Williston, 1885) – valid
  Apatolestes comastes Williston, 1885 – valid
  Aphamartania fur Williston, 1885 – invalid
  Chrycochlora Williston, 1885 – invalid
  Clitellaria argentata Williston, 1885 – invalid
  Conops fronto Williston, 1885 – invalid
  Conops gracilis Williston, 1885 – invalid
  Cophura fur (Williston, 1885) – valid
  Efferia costalis (Williston, 1885) – valid
  Efferia dubia (Williston, 1885) – valid
  Efferia jubata (Williston, 1885) – valid
  Efferia latruncula (Williston, 1885) – valid
  Efferia leucocoma (Williston, 1885) – valid
  Efferia similis (Williston, 1885) – valid
  Efferia tagax (Williston, 1885) – valid
  Efferia varipes (Williston, 1885) – valid
  Erax costalis Williston, 1885 – invalid
  Erax dubius Williston, 1885 – invalid
  Erax furax Williston, 1885 – invalid
  Erax jubatus Williston, 1885 – invalid
  Erax latrunculus Williston, 1885 – invalid
  Erax leucocomus Williston, 1885 – invalid
  Erax similis Williston, 1885 – invalid
  Erax stamineus Williston, 1885 – invalid
  Erax tagax Williston, 1885 – invalid
  Erax varipes Williston, 1885 – invalid
  Euparyphus ornatus Williston, 1885 – valid
  Exodontha luteipes (Williston, 1885) – valid
  Hermetia comstocki Williston, 1885 – valid
  Laphria ventralis Williston, 1885 – valid
  Macrosargus clavis Williston, 1885 – invalid
  Mallophora guildiana Williston, 1885 – invalid
  Mallophora nigra Williston, 1885 – invalid
  Megaphorus guildiana (Williston, 1885) – valid
  Myopa pictipennis Williston, 1885 – invalid
  Myopa pilosa Williston, 1885 – invalid
  Myopa plebeia Williston, 1885 – valid
  Oncomyia melanopoda Williston, 1885 – invalid
  Pachygaster pulchris Williston, 1885 – invalid
  Physoconops fronto (Williston, 1885) – valid
  Physoconops gracilis (Williston, 1885) – valid
  Proctacanthus rufus Williston, 1885 – valid
  Promachus albifacies Williston, 1885 – valid
  Promachus princeps Williston, 1885 – valid
  Ptecticus sackenii Williston, 1885 – valid
  Ptecticus similis Williston, 1885 – invalid
  Scoliopelta Williston, 1885 – invalid
  Scoliopelta luteipes Williston, 1885 – invalid
  Subula parens Williston, 1885 – invalid
  Xylomya parens (Williston, 1885) – valid
  Xylophagus decorus Williston, 1885 – valid
  Xylophagus gracilis Williston, 1885 – valid
  Zodion leucostoma Williston, 1885 – invalid
  Zodion pictulum Williston, 1885 – valid
  Zodion pygmaeum Williston, 1885 – invalid
  Acrocera liturata Williston, 1886 – invalid
  Arthroceras pollinosum Williston, 1886 – valid
  Bombyliomyia soror (Williston, 1886) – valid
  Ceraturgus nigripes Williston, 1886 – valid
  Dejeania hystricosa Williston, 1886 – invalid
  Echinomyia thomsoni Williston, 1886 – invalid
  Ectyphus limbatus Williston, 1886 – invalid
  Gymnochaeta ruficornis Williston, 1886 – invalid
  Gymnochaeta vivida Williston, 1886 – invalid
  Gymnocheta ruficornis Williston, 1886 – valid
  Gymnocheta vivida Williston, 1886 – valid
  Hirmoneura flavipes Williston, 1886 – valid
  Hyalomyia aeneoventris Williston, 1886 – invalid
  Hystricia soror Williston, 1886 – invalid
  Jurinia hystricoides Williston, 1886 – invalid
  Melanophrys Williston, 1886 – valid
  Melanophrys flavipennis Williston, 1886 – valid
  Mydas scitulus Williston, 1886 – invalid
  Opomydas limbatus (Williston, 1886) – valid
  Ospriocerus aeacidinus (Williston, 1886) – valid
  Peleteria thomsoni (Williston, 1886) – valid
  Phasia aeneoventris (Williston, 1886) – valid
  Phyllomydas scitulus (Williston, 1886) – valid
  Pipunculus opacus Williston, 1886 – invalid
  Protodejeania hystricosa (Williston, 1886) – valid
  Saundersia bicolor Williston, 1886 – invalid
  Saundersia maculata Williston, 1886 – invalid
  Stenopogon aeacidinus Williston, 1886 – invalid
  Symphoromyia pachyceras Williston, 1886 – valid
  Symphoromyia plagens Williston, 1886 – valid
  Thereva crassicornis Williston, 1886 – invalid
  Xanthoepalpus bicolor (Williston, 1886) – valid
  Baccha torva Williston, 1887 – invalid
  Blera nigra (Williston, 1887) – valid
  Blera umbratilis (Williston, 1887) – valid
  Brachypalpus parvus Williston, 1887 – invalid
  Brachypalpus sorosis Williston, 1887 – invalid
  Ceria loewii Williston, 1887 – invalid
  Ceria pedicellata Williston, 1887 – invalid
  Ceria scutellata Williston, 1887 – invalid
  Ceriana loewii (Williston, 1887) – valid
  Ceriana pedicellata (Williston, 1887) – valid
  Chalcosyrphus parvus (Williston, 1887) – valid
  Cheilosia baroni (Williston, 1887) – valid
  Chilosia baroni Williston, 1887 – invalid
  Chilosia hoodiensis Williston, 1887 – invalid
  Chilosia lugubris Williston, 1887 – invalid
  Chilosia petulca Williston, 1887 – invalid
  Chilosia versipellis Williston, 1887 – invalid
  Chrysogaster pulchella Williston, 1887 – invalid
  Chrysops pachycera Williston, 1887 – invalid
  Chrysops sequax Williston, 1887 – valid
  Chrysotoxum integre Williston, 1887 – invalid
  Chrysotoxum ypsilon Williston, 1887 – valid
  Copestylum anna (Williston, 1887) – valid
  Copestylum comstocki (Williston, 1887) – valid
  Copestylum eugenia (Williston, 1887) – valid
  Copestylum isabellina (Williston, 1887) – valid
  Copestylum lentum Williston, 1887 – valid
  Copestylum limbipenne Williston, 1887 – valid
  Copestylum victoria (Williston, 1887) – valid
  Criorhina nigra Williston, 1887 – invalid
  Criorhina umbratilis Williston, 1887 – invalid
  Dasysyrphus lotus (Williston, 1887) – valid
  Dasysyrphus pauxillus (Williston, 1887) – valid
  Doliosyrphus rileyi Williston, 1887 – invalid
  Epistrophe xanthostoma (Williston, 1887) – valid
  Gonia exul Williston, 1887 – invalid
  Gonia porca Williston, 1887 – valid
  Gonia senilis Williston, 1887 – valid
  Gonia sequax Williston, 1887 – valid
  Helophilus billinearis Williston, 1887 – invalid
  Helophilus conostomus Williston, 1887 – invalid
  Helophilus distinctus Williston, 1887 – invalid
  Helophilus modestus Williston, 1887 – invalid
  Heringia pisticoides (Williston, 1887) – valid
  Hybomitra sequax (Williston, 1887) – valid
  Hybomitra sodalis (Williston, 1887) – valid
  Lejops billinearis (Williston, 1887) – valid
  Lejops distinctus (Williston, 1887) – valid
  Melanostoma angustatum Williston, 1887 – invalid
  Melanostoma coerulescens Williston, 1887 – invalid
  Microdon limbus Williston, 1887 – invalid
  Microdon pachystylum Williston, 1887 – invalid
  Microdon ruficrus Williston, 1887 – valid
  Microdon scitulus Williston, 1887 – invalid
  Microdon tristis ruficrus Williston, 1887 – invalid
  Microtabanus pygmaeus (Williston, 1887) – valid
  Neoascia distincta Williston, 1887 – valid
  Orthonevra pulchella (Williston, 1887) – valid
  Pangonia dives Williston, 1887 – invalid
  Parasyrphus genualis (Williston, 1887) – valid
  Pipiza albipilosa Williston, 1887 – invalid
  Pipiza nigripilosa Williston, 1887 – valid
  Pipiza pistica Williston, 1887 – invalid
  Pipiza pisticoides Williston, 1887 – invalid
  Pipiza puella Williston, 1887 – valid
  Pipiza pulchella Williston, 1887 – invalid
  Platycheirus chaetopodus Williston, 1887 – invalid
  Platycheirus coerulescens (Williston, 1887) – valid
  Sericomyia bifasciata Williston, 1887 – valid
  Sphaerophoria melanosa Williston, 1887 – invalid
  Sphegina keeniana Williston, 1887 – valid
  Spilomyia liturata Williston, 1887 – valid
  Stonemyia fera Williston, 1887 – valid
  Syrphus disjectus Williston, 1887 – invalid
  Syrphus genualis Williston, 1887 – invalid
  Syrphus lotus Williston, 1887 – invalid
  Syrphus mentalis Williston, 1887 – invalid
  Syrphus pauxillus Williston, 1887 – invalid
  Syrphus sodalis Williston, 1887 – invalid
  Syrphus xanthostoma Williston, 1887 – invalid
  Tabanus comastes Williston, 1887 – invalid
  Tabanus fratellus Williston, 1887 – valid
  Tabanus pygmaeus Williston, 1887 – invalid
  Tabanus sequax Williston, 1887 – invalid
  Tabanus sodalis Williston, 1887 – invalid
  Temnostoma pictulum Williston, 1887 – invalid
  Temnostoma venustum Williston, 1887 – valid
  Tropidia calcarata Williston, 1887 – valid
  Volucella anna Williston, 1887 – invalid
  Volucella comstocki Williston, 1887 – invalid
  Volucella eugenia Williston, 1887 – invalid
  Volucella hagii Williston, 1887 – invalid
  Volucella isabellina Williston, 1887 – invalid
  Volucella victoria Williston, 1887 – invalid
  Xylota analis Williston, 1887 – valid
  Xylota elongata Williston, 1887 – invalid
  Xylota marginalis Williston, 1887 – invalid
  Xylota notha Williston, 1887 – invalid
  Xylota rileyi Williston, 1887 – invalid
  Xylota tuberans Williston, 1887 – invalid
  Beris bellula Williston, 1888 – invalid
  Chordonota nigra Williston, 1888 – valid
  Chrysonotus analis Williston, 1888 – invalid
  Cryptochetum iceryae (Williston, 1888) – valid
  Diaphorostylus nasica (Williston, 1888) – valid
  Dicranophora affinis Williston, 1888 – valid
  Dicranophora astuta Williston, 1888 – valid
  Euryneura elegans Williston, 1888 – valid
  Euryneura nasica Williston, 1888 – invalid
  Hermetia ceriogaster Williston, 1888 – valid
  Hilarimorpha mikii Williston, 1888 – valid
  Lestophonus iceryae Williston, 1888 – invalid
  Merosargus festivus Williston, 1888 – valid
  Merosargus gracilis Williston, 1888 – valid
  Myxosargus braueri Williston, 1888 – valid
  Neoxaireta Williston, 1888 – invalid
  Oplachantha bellula (Williston, 1888) – valid
  Oplachantha pulchella Williston, 1888 – valid
  Promeranisa cylindricornis Williston, 1888 – valid
  Promerisana Williston, 1888 – invalid
  Sargus analis (Williston, 1888) – valid
  Acantholespesia comstocki (Williston, 1889) – valid
  Acroglossa Williston, 1889 – invalid
  Acroglossa hesperidarum Williston, 1889 – invalid
  Chetogena edwardsii (Williston, 1889) – valid
  Exorista blanda proserpina Williston, 1889 – invalid
  Exorista scudderi Williston, 1889 – invalid
  Haematobia cornicola Williston, 1889 – invalid
  Lespesia frenchii (Williston, 1889) – valid
  Lespesia rileyi (Williston, 1889) – valid
  Leucopis bellula Williston, 1889 – valid
  Madremyia saundersii (Williston, 1889) – valid
  Masicera frenchii Williston, 1889 – invalid
  Masicera rileyi Williston, 1889 – invalid
  Phorocera comstocki Williston, 1889 – invalid
  Phorocera edwardsii Williston, 1889 – invalid
  Phorocera saundersii Williston, 1889 – invalid
  Spallanzania hesperidarum (Williston, 1889) – valid
  Baccha coeruleus Williston, 1891 – invalid
  Cheilosia chrysochlamys (Williston, 1891) – valid
  Cheilosia sorrorcula (Williston, 1891) – valid
  Chilosia chrysochlamys Williston, 1891 – invalid
  Chilosia sorrorcula Williston, 1891 – invalid
  Copestylum fraudulentum (Williston, 1891) – valid
  Copestylum quadratum (Williston, 1891) – valid
  Didea coquilletti Williston, 1891 – invalid
  Dideomima coquilletti (Williston, 1891) – valid
  Eristalis minutalis Williston, 1891 – invalid
  Myiolepta auricaudata Williston, 1891 – invalid
  Myolepta auricaudata (Williston, 1891) – valid
  Ocyptamus coeruleus (Williston, 1891) – valid
  Palpada minutalis (Williston, 1891) – valid
  Volucella fraudulentum Williston, 1891 – invalid
  Volucella quadratum Williston, 1891 – invalid
  Ceria schnablei Williston, 1892 – invalid
  Ceriana schnablei (Williston, 1892) – valid
  Chalcosyrphus pauxilla (Williston, 1892) – valid
  Conops angustifrons Williston, 1892 – invalid
  Conops discalis Williston, 1892 – valid
  Criorhina coquilletti Williston, 1892 – valid
  Physoconops discalis (Williston, 1892) – valid
  Xylota pauxilla Williston, 1892 – invalid
  Zodion auricaudatum Williston, 1892 – valid
  Apterina politus Williston, 1893 – invalid
  Aptilotus politus (Williston, 1893) – valid
  Asilus affinis Williston, 1893 – invalid
  Asilus angustifrons Williston, 1893 – invalid
  Asilus annulatus Williston, 1893 – invalid
  Asilus astutus Williston, 1893 – invalid
  Asilus callidus Williston, 1893 – invalid
  Asilus flavipes Williston, 1893 – invalid
  Asilus leucopogon Williston, 1893 – invalid
  Bibio tristis Williston, 1893 – valid
  Cheilosia chalybescens (Williston, 1893) – valid
  Chilosia chalybescens Williston, 1893 – invalid
  Chlorops ingrata Williston, 1893 – invalid
  Comastes sackeni Williston, 1893 – invalid
  Culex inornatus Williston, 1893 – invalid
  Culiseta inornata (Williston, 1893) – valid
  Cyrtopogon dasyllis Williston, 1893 – valid
  Eclimus auratus Williston, 1893 – invalid
  Eclimus melanosus Williston, 1893 – invalid
  Eclimus sodalis Williston, 1893 – invalid
  Efferia arida (Williston, 1893) – valid
  Empis sociabilis Williston, 1893 – invalid
  Ephydra tarsata Williston, 1893 – invalid
  Erax aridus Williston, 1893 – invalid
  Eriocera eriophora Williston, 1893 – invalid
  Eriocera obscura Williston, 1893 – invalid
  Euchaetogyne roederi (Williston, 1893) – valid
  Hexatoma eriophora (Williston, 1893) – valid
  Homaluroides ingratus (Williston, 1893) – valid
  Hystrichodexia roederi Williston, 1893 – invalid
  Leia striata (Williston, 1893) – valid
  Limonia defuncta concinna (Williston, 1893) – valid
  Lordotus puella Williston, 1893 – valid
  Lordotus pulchrissimus Williston, 1893 – valid
  Lordotus sororculus Williston, 1893 – valid
  Machimus callidus (Williston, 1893) – valid
  Melanodexia tristis Williston, 1893 – valid
  Negasilus astutus (Williston, 1893) – valid
  Neoglaphyroptera striata Williston, 1893 – invalid
  Neoitamus affinis (Williston, 1893) – valid
  Notiphila decoris Williston, 1893 – valid
  Orfelia notabilis (Williston, 1893) – valid
  Orthoneuromyia modesta Williston, 1893 – invalid
  Pachyrhina erythrophrys Williston, 1893 – invalid
  Pedicia debilis (Williston, 1893) – valid
  Pelomyia occidentalis Williston, 1893 – valid
  Pericoma slossonae (Williston, 1893) – valid
  Pipunculus aridus Williston, 1893 – invalid
  Platyura gracilis Williston, 1893 – invalid
  Platyura notabilis Williston, 1893 – invalid
  Platyura pulchra Williston, 1893 – valid
  Prionocera bergrothi (Williston, 1893) – valid
  Prospherysa similis Williston, 1893 – invalid
  Psilocurus modestus (Williston, 1893) – valid
  Psychoda albipunctatus Williston, 1893 – invalid
  Psychoda slossonae Williston, 1893 – invalid
  Rhamphomyia sociabilis (Williston, 1893) – valid
  Rhaphidolabis debilis Williston, 1893 – invalid
  Simulium argus Williston, 1893 – valid
  Stygeropis bergrothi Williston, 1893 – invalid
  Tachinomyia similis (Williston, 1893) – valid
  Telmatoscopus albipunctatus (Williston, 1893) – valid
  Thevenemyia sodalis (Williston, 1893) – valid
  Triplasius novus Williston, 1893 – invalid
  Triploechus novus (Williston, 1893) – valid
  Triploechus sackeni (Williston, 1893) – valid
  Dolichomyia gracilis Williston, 1894 – valid
  Desmatomyia anomala Williston, 1895 – valid
  Desmatoneura argentifrons Williston, 1895 – valid
  Dialysis aldrichi Williston, 1895 – valid
  Dichocera Williston, 1895 – valid
  Dichocera lyrata Williston, 1895 – valid
  Townsendia minuta Williston, 1895 – valid
  Acrosticta apicalis (Williston, 1896) – valid
  Agromyza innominata Williston, 1896 – invalid
  Agromyza sorosis Williston, 1896 – invalid
  Allotrichoma abdominale (Williston, 1896) – valid
  Atarba pleuralis Williston, 1896 – invalid
  Bezzia punctipennis (Williston, 1896) – valid
  Borborus illotus Williston, 1896 – invalid
  Brontaea debilis (Williston, 1896) – valid
  Ceratopogon eriophorus Williston, 1896 – invalid
  Ceratopogon punctipennis Williston, 1896 – invalid
  Chordonota leiophthalma Williston, 1896 – valid
  Chrysochroma Williston, 1896 – invalid
  Chymomyza procnemis (Williston, 1896) – valid
  Crossopalpus xanthopoda (Williston, 1896) – valid
  Cyphomyia lasiophthalma Williston, 1896 – valid
  Discocerina faciale Williston, 1896 – invalid
  Discocerina obscura Williston, 1896 – valid
  Drapetis xanthopoda Williston, 1896 – invalid
  Drosophila limbata Williston, 1896 – invalid
  Drosophila pollinosa Williston, 1896 – invalid
  Drosophila procnemis Williston, 1896 – invalid
  Drosophila thoracis Williston, 1896 – valid
  Elachiptera dispar Williston, 1896 – invalid
  Epochroa Williston, 1896 – invalid
  Euparyphus bistriatus Williston, 1896 – valid
  Euxesta apicalis Williston, 1896 – invalid
  Forcipomyia eriophora (Williston, 1896) – valid
  Gonomyia pleuralis (Williston, 1896) – valid
  Haemagogus Williston, 1896 – valid – Shoulder Mosquito
  Haemagogus (Haemagogus) Williston, 1896 – valid
  Haemagogus splendens Williston, 1896 – valid
  Hecamede abdominalis Williston, 1896 – invalid
  Heteracantha Williston, 1896 – invalid
  Heteromeringia flavipes (Williston, 1896) – valid
  Heteroneura flavipes Williston, 1896 – invalid
  Hippelates proboscideus Williston, 1896 – valid
  Hydrellia parva Williston, 1896 – invalid
  Hydrellia pulchra Williston, 1896 – invalid
  Hydrochasma faciale (Williston, 1896) – valid
  Ilythea flavipes Williston, 1896 – invalid
  Isostomyia perturbans (Williston, 1896) – valid
  Leptopsilopa nigrimana (Williston, 1896) – valid
  Limnophora debilis Williston, 1896 – invalid
  Liriomyza sorosis (Williston, 1896) – valid
  Lolphoteles Williston, 1896 – invalid
  Lonchaea longicornis Williston, 1896 – valid
  Monochaetoscinella anonyma (Williston, 1896) – valid
  Neoaspilota Williston, 1896 – invalid
  Neochauna Williston, 1896 – valid
  Nostima pulchra (Williston, 1896) – valid
  Onychaspidium apicale (Williston, 1896) – valid
  Oscinis anonyma Williston, 1896 – invalid
  Oscinis apicale Williston, 1896 – invalid
  Paralimna multipunctata Williston, 1896 – valid
  Paralimna obscura Williston, 1896 – valid
  Pelagomyia Williston, 1896 – valid
  Pelagomyia albitalis Williston, 1896 – valid
  Psilopa nigra Williston, 1896 – invalid
  Psilopa nigrimana Williston, 1896 – invalid
  Ptilomyia parva (Williston, 1896) – valid
  Sapromyza sororia Williston, 1896 – valid
  Scatella obscura Williston, 1896 – valid
  Simulium tarsale Williston, 1896 – valid
  Stomosis innominata (Williston, 1896) – valid
  Tomoplagia incompleta (Williston, 1896) – valid
  Trichoprosopon perturbans (Williston, 1896) – invalid
  Trichopteromyia modesta Williston, 1896 – valid
  Trypeta incompleta Williston, 1896 – invalid
  Typopsilopa nigra (Williston, 1896) – valid
  Wyeomyia pertinans (Williston, 1896) – valid
  Zeros flavipes (Williston, 1896) – valid
  Gastrops niger Williston, 1897 – valid
  Helophilus dychei Williston, 1897 – invalid
  Parydra humilis Williston, 1897 – valid
  Ectyphus townsendi Williston, 1898 – invalid
  Opomydas townsendi (Williston, 1898) – valid
  Bombylius coquilletti Williston, 1899 – valid
  Acanthina inornata Williston, 1900 – invalid
  Analcoceroides longicornis (Williston, 1900) – valid
  Analcocerus hortulanus Williston, 1900 – invalid
  Anoplodonta fratella (Williston, 1900) – valid
  Berismyia nigrofemorata Williston, 1900 – valid
  Campeprosopa longicornis Williston, 1900 – invalid
  Ceratopogon pachymera Williston, 1900 – invalid
  Chrysochlora pulchra Williston, 1900 – invalid
  Chrysochlorina pulchra (Williston, 1900) – valid
  Chrysochroma latifrons Williston, 1900 – invalid
  Chrysochroma pulchrum Williston, 1900 – invalid
  Coquillettidia grandiosus (Williston, 1900) – invalid
  Cyphomyia bicarinata Williston, 1900 – valid
  Cyphomyia lasiophthalma Williston, 1900 – invalid
  Eriocera fasciata Williston, 1900 – invalid
  Eriocera flavida Williston, 1900 – invalid
  Euparphus elongatulus Williston, 1900 – invalid
  Euparyphus elongatulus (Williston, 1900) – valid
  Hermetia ceria Williston, 1900 – valid
  Hermetia concinna Williston, 1900 – valid
  Hexatoma fasciata (Williston, 1900) – valid
  Hexatoma flavida (Williston, 1900) – valid
  Labostigmina concinnata (Williston, 1900) – invalid
  Macrosargus spatulatus Williston, 1900 – invalid
  Merosargus bulbifrons Williston, 1900 – valid
  Merosargus cercaceus Williston, 1900 – invalid
  Merosargus concinnatus Williston, 1900 – valid
  Merosargus spatulatus (Williston, 1900) – valid
  Microchrysa latifrons (Williston, 1900) – valid
  Myxosargus scutellatus Williston, 1900 – valid
  Neanalcocerus hortulanus (Williston, 1900) – valid
  Odontomyia comma Williston, 1900 – invalid
  Odontomyia concinnata Williston, 1900 – invalid
  Odontomyia fratella Williston, 1900 – invalid
  Odontomyia rubicornis Williston, 1900 – invalid
  Orfelia elegantula (Williston, 1900) – valid
  Pachyhelea pachymera (Williston, 1900) – valid
  Platyura elegantula Williston, 1900 – invalid
  Psellidotus comma (Williston, 1900) – valid
  Psellidotus concinnatus (Williston, 1900) – valid
  Ptecticus concinnus Williston, 1900 – valid
  Ptecticus maculatus Williston, 1900 – valid
  Ptecticus sackeni Williston, 1900 – invalid
  Tipula virgulata Williston, 1900 – valid
  Toxorhynchites grandiosus (Williston, 1900) – valid
  Amphicosmus cincturus Williston, 1901 – valid
  Andrenosoma rubidum (Williston, 1901) – valid
  Anisotamia fasciata Williston, 1901 – invalid
  Anthrax ceria Williston, 1901 – invalid
  Anthrax diana Williston, 1901 – invalid
  Anthrax hirsuta Williston, 1901 – invalid
  Anthrax maria Williston, 1901 – invalid
  Anthrax nigrofimbriata Williston, 1901 – invalid
  Anthrax pleuralis Williston, 1901 – invalid
  Anthrax pluricellus Williston, 1901 – valid
  Apolysis trochilides (Williston, 1901) – valid
  Atonia brevistylata Williston, 1901 – invalid
  Atoniomyia brevistylata (Williston, 1901) – valid
  Bombylius clio Williston, 1901 – valid
  Bombylius dolorsus Williston, 1901 – valid
  Bombylius io Williston, 1901 – valid
  Bryodemina fasciata (Williston, 1901) – valid
  Chrysanthrax ceria (Williston, 1901) – valid
  Chrysops neglectus Williston, 1901 – invalid
  Cophura pulchella Williston, 1901 – valid
  Cosmariomyia pallidipennis (Williston, 1901) – valid
  Cynipimorpha minuta Williston, 1901 – invalid
  Dichelacera pulchra Williston, 1901 – valid
  Dicranus jaliscoensis Williston, 1901 – valid
  Eclimus fascipennis Williston, 1901 – invalid
  Eclimus quadrata Williston, 1901 – invalid
  Eidalimus minutus (Williston, 1901) – valid
  Esenbeckia illota (Williston, 1901) – valid
  Esenbeckia pavida (Williston, 1901) – valid
  Euryphthiria alterans (Williston, 1901) – valid
  Exoprosopa brevirostris Williston, 1901 – valid
  Exoprosopa brevistylata Williston, 1901 – valid
  Exoprosopa pavida Williston, 1901 – valid
  Exoprosopa sackeni Williston, 1901 – valid
  Geron trochilides Williston, 1901 – invalid
  Hemipenthes pleuralis (Williston, 1901) – valid
  Heteropogon rejectus Williston, 1901 – valid
  Lophoteles pallidipennis Williston, 1901 – invalid
  Neacreotrichus dolorosa (Williston, 1901) – valid
  Nusa rubida Williston, 1901 – invalid
  Ogcodocera analis (Williston, 1901) – valid
  Oncodocera analis Williston, 1901 – invalid
  Pangonia illota Williston, 1901 – invalid
  Pangonia pavida Williston, 1901 – invalid
  Perasis argentifacies (Williston, 1901) – valid
  Phthiria dolorosa Williston, 1901 – invalid
  Phthiria pulchella Williston, 1901 – invalid
  Phthiria sororia Williston, 1901 – invalid
  Poecilognathus alterans Williston, 1901 – invalid
  Poecilognathus pulchella (Williston, 1901) – valid
  Rhynchanthrax maria (Williston, 1901) – valid
  Rhynchanthrax nigrofimbriata (Williston, 1901) – valid
  Sparnopolius diversus Williston, 1901 – valid
  Sphenoidoptera varipennis Williston, 1901 – valid
  Stonyx lelia Williston, 1901 – valid
  Stonyx melia Williston, 1901 – valid
  Systropus dolorosus Williston, 1901 – valid
  Systropus pulcher Williston, 1901 – valid
  Systropus similis Williston, 1901 – valid
  Tabanus furunculus Williston, 1901 – valid
  Thevenemyia fascipennis (Williston, 1901) – valid
  Thevenemyia quadrata (Williston, 1901) – valid
  Toxophora varipennis Williston, 1901 – valid
  Triclis argentifacies Williston, 1901 – invalid
  Camptoprosopella dolorosa (Williston, 1903) – valid
  Pachycerina dolorosa Williston, 1903 – invalid
  Alisonia Williston, 1908 – invalid
  Baryphlegma Williston, 1908 – invalid
  Cholomyia nigriceps Williston, 1908 – invalid
  Myiochrysa coerulia Williston, 1908 – invalid
  Nemoraea nigricornis Williston, 1908 – invalid
  Toxytrypana Williston, 1908 – invalid
  Camptopelta Williston, 1917 – invalid
  Camptopelta aldrichi Williston, 1917 – invalid
  Nemotelus (Camptopelta) Williston, 1917 – valid
  Nemotelus aldrichi (Williston, 1917) – valid
  Scopolia sequax Williston in Cook, 1884 – invalid
  Achaetoneura fernaldi Williston in Forbush and Fernald, 1896 – invalid
 
 Kingdom Plantae
  Euphorbia sarcostemmoides J.H. Willis – accepted
  Gossypium sturtianum J.H. Willis – accepted – Sturt's desert rose
   

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