154 



GUIDE TO CALIFORNIA INSECTS. 



Fig-ure 161 Head and mouthparts of 

 a Tabanid 



f'lgure 162 Venation of Tabanida? and 

 related groups 



quadrivitatus — silvius. 

 surdus O.S. 

 Corizoneura ruficornis — Pangonia. 



velutina — Pangonia. 

 Diatominerva californica. — Pangonia. 

 Haema+opate americana O.S. 

 Pangonia californica (Big.) 



dives Wil. 



hera O.S. 



ruficornis (Big.) 



velutina (Big.) 

 Silvius gigantulus (Loew.) 



quadrivitatus Say. 

 Tabanus ^grotus O.S. 



captouis Mar. 



comastes Wil. 



episatus O.S. 



insuitus O.S. 



laticeps Hine. 



lineola Fabr. 



phanerops O.S. 



procyon O.S. 



punctifer O.S. 



rhombicus O.S. 



sonomensis O.S. 

 Aochletus obscurus Coq. 

 ' Chloromyia viridis — Sargus. 

 Ciilellaria lata Loew. 



STRATIOMYID/E. 



The larvae are carnivorous and found in various situations. 



Figure 163 A Stratiomyid fly. 



villosulus Big. 

 Thermoplectus californicus- 

 epistatus. 

 captonis— Tabanus. 

 rustica O.S. 



-Tabanus 



haemaphorus — Tabanus sonomen 

 sis. 



phgenops — Tabanus. 



procyon — Tabanus. 



sonomensis — Tabanus. 

 Euparyphus apicalis Coq. 



niger Big. 



septemmaculatus Adams. 



tahoensis Coq. 

 Nemotelus arator Mel. 



tristus Big. 

 Odontomyia americana Day. 



arcuata Loew. 



binotata — truquii. 



cincta Oliv. 



hodiana Big. 



inequatus Loew, 



megacephala — truquii. 



pilosus Day. 



pubescens Day. 



pyrrhostoma — qilosa. 



truquii Bel. 



