DIPTERA. 
355 
Asilidte. 
ScHiNEB (Reise der Novara, Dipt. pp. 161, 162, & 156-168) discusses the 
genera of tliis family, which he divides into two, the Midasidre and Asilidse. 
Of the former, Tomacera (Macq.) and Anypcnus (Phil.) belong to Apiocera 
(Westw.) j A^noiyJiora appears to he identical with Rhopalia (Macq.), 
and Megascelus (Phil.) with Dolichogaster (Macq.). Schiner. accepts only 6 
genera as well founded, namely, besides those above mentioned, Midas 
(Pah.) and Ccphalocera (Lat.). The number of Imown species is 88, of 
whicli Europe and Asia each possess only 8, whilst Africa has 18, America 
40, and Australia 20. The native countries of 3 species are unknown. Of 
the numerous (105) genera described as belonging to the true Asilidm, 
Schiner suppresses the following: — Gonypes = Leptogaster (Meig.) ; 
Gastrichelius (Rond.) = Triclis (Loew) ; Blepharepium (Rond.) must be re- 
ferred to Laparus, Saropogon, or Dasypogon ; Cheilopogon (Rond.) = Dasy- 
pyogoii] Dactyliscus (JXon^.) — IIabro}Jogon (Loew) ; Elasmocera (Rond.) = 
Xiphocera (Atacq.) ; Enarmosfjfs (Walk.) probably = (Loew); 
3Iorimmn (Walk.) = Lastaurus (I^oew) ; Clavator (Vlul.) =IIype7ie(es (Loew) ; 
Chccradcs (Wallt.) = X(7^j/?7’m ; Ntisa (Xa\\i.)=A7idrcnosoma (Rond.); A^n- 
(Walk.) = (Macq.) ; Cormayisis (W^\k.)=Ato7nosia (Macq.); 
Acurana (Xa\k.) — Laxenecern (Macq.). Dyseris (Loew) is founded on an 
error, and not distinct from Laxenecej'a. Scandon (Walk.) = Tliereutiia 
(Loew) ; Ileligmonmra (Big.)= Mochtherus (Loew) ; Eristicus (Loew) is not 
sufRciently distinguished from Erax (Macq.). The Asilidse, in Schiner’s 
sense, include 1880 described species, namely, European 261, Asiatic 350, 
African 304, American 687, Australian 146, and of unknown origin 132. 
Schiner remarks upon some of the peculiarities in the distribution of the 
subfamilies and genera of this group. 
Gebstackeb publishes (Stett. out. Zeit. 1868, pp. 66-103) a monographic 
revision of the Mydasii (Latr.). After a summary of the history of the 
group, he gives the following table of the genera which he includes in it: — 
I. Three cells between the fork-cell and the hind margin of the wing. 
A. Fork-cell with a long peduncle ; proboscis very long, without ter- 
minal lips 3. Mitbodetus, g. n. 
R. Fork-cell with a short peduncle ; proboscis shorter, with terminal 
lips. 
* Lower face short, receding ; proboscis projecting horizontally. 
1. Diochlistus, g. n. 
t Lower face long, perpendicular ; proboscis descending perpendicu- 
larly 2. Tbiclonus, g. n. 
II. Two cells between the fork-cell and the hinder margin of the wing. 
A. “Apical club of antenna3 very large and singularly formed. 
7. Pebissocebus, g. n. 
B. Apical club of ordinary structure. 
* Apical segment of abdomen in 5 without a circlet of spines. 
1. Anteiinm elongated; branches of the fork terminating separately 
in the first longitudinal vein.. 10. Mydas (Fab.). 
2. Antennae short ; branches of the fork united. 
11. Dolichogasteb (Macq.). 
t Apical segment of abdomen in $ with a circlet of spines. 
