DIPTERA — ASILINA 



149 



Lasiopogon arenicola O.S. 



bivittatus Loew. 

 Leptogaster scapularis oig. 

 Lestomyia fraudigera Wi.. 



sabulonum (O.S.) 

 Malloptiora megachile Coq. 

 Metapogon gilvipes Coq. 

 Myelaphus lObicornis (O.S.) 

 melas Big. 



rufus Wil. 

 Neclaparus pictitarsus Big. 

 Nicocles abdominalis Wli. 



aemuiaor (Loew.) 



argentatus Coq. 



dives (Loew.) 

 Nusa fulvicauda Say. 

 Ospnocerus abdominalis (Say). 

 Pycnopogon cirr.atus O.S. 



senilis — Heteropogon. 

 i-ygostalus semulator — Nicocles. 



h-seudatrichia griseola Coq. 



dives — Nicocles 

 Sarapogon hyalinus Coq. 



luteus Coq. 



semiustus Coq. 

 Scleropogon jubatus — Stenopogon. 



picticornis — Stenopogon. 

 Ctenopogon albibasis Big. 



breviusculus Loew. 



californiae (Walk.) 



gratus Loew. 



jubatus Loew. 



nigritulus Coq. 



obscuriventris — californiae. 



picticornis Low. 



univittatus — gratus. 

 Stictopogon argentatus Say. 



trifasciatus (Say), 

 Triclis tagax Wil. 

 Willistonia bilineatus Back. 



SCENOPID/E. 



Metaphragma planiceps Loew. 

 Nebritis pellucidus Coq. 

 Psilocephala aldrichii Coq. 



baccata Coq. 



costalis Loew. 



marcida Coq. 



montivaga Coq. 



pavir^a Coq. 

 Thereva cornata Loew. 



THEREVID/E. 



crassicornis Wil. 

 egressa Coq. 

 furcata Loew. 

 melaneura Loew. 

 nigra Say. 

 otiosa Coq. 

 semitaria Coq. 

 vialis O.S. 

 Xestomyza planiceps — Metaphragma. 



BOMBYLINA 



APIOCERID/E. 



Apiocera haruspex O.S. 

 Apomydas trochilus Coq. 



Raphiomydas acton Coq. 



MYDAID>e. 



The larvse live in decaying wood and are predaceous. 



Leptomydas concinnus Coq. 

 hirtus Coq. 

 pantherinus Gar. 

 tennuipes (Loew.) 

 Mydas tennuipes — Leptomydas. 

 ventralis Ger. 



Figure 157 Venation of a Mydiad 



