KKPTID.Y. 103 



examination, except two genera of my own that I have attributed 

 to it. Williston admits the subfamily, but includes Xylomyia, 

 which is essentially a Stratiomyid ; whilst Glutops, the only other 

 North- American genus, except Arthroceras itself, has given rise to 

 some discussion as to its exact position. 



The CCENOMYIN.-E are large, heavy, rather bare, and Tabanid- 

 like flies with comparatively short legs. 



The VfiUOEKOimrjR are not Oriental, so only a passing note 

 need be given them- here. They differ from the LEPTIN.E by the 

 eyes being wide apart in both sexes, by a different structure 'of 

 the face, and, to a less extent, the body. The 3rd longitudinal 

 vein forks later and more widely, and the wings are cuneiform at 

 their bases, without alulae ; the venation, though technically 

 normal, shows minor variations. 



Table of Indian Subfamilies and Genera. 



1. Antennae palpably elongate ; 3rd antennal 



joint distinctly" annulated ; no arista 2. 



Antennae not palpably elongate ; 3rd antennal 

 joint never annulated, but rounded, conical, 

 or reniform ; arista present. (LEPTIN^E.) . . 5. 



2. All tibiae spurred: 3rd antennal joint without 



style 3. 



Fore tibiae without spurs ; 3rd antennal joint 

 with a style-like prolongation (absent in 

 Pararthropeas). (ARTHROCERATIN^E.) . . 4. 



3. Fifth posterior cell in broad contact \vith 



discal cell ; face with rounded socketed 

 epistoma margined by broad side-cheeks ; 



eyes in $ contiguous; scutellum with two [nov., p. 110. 



short blunt spines. (C<ENOMYINJE.) .... CCENOMYJODES, gen. 

 Fifth posterior cell not touching discal cell ; 

 face flat, epLstoma not socketed or mar- 

 gined by broad side-cheeks ; eyes in c? 



well separated ; scutellum without spines. [p. 104. 



(XYLOPHAGIN.S:.) RHACHICERUS, Walk., 



4. First antennal joint much the longest ; 4th [p. 107. 



posterior cell open DESMOMYIA, Brun., 



Third antennal joint more than double as 



long as 1st and 2nd together; 4th posterior [nov., p. 108. 



cell closed PARARTHROPEAS, gen. 



5. Third antennal joint kidney -shaped ; arista 



dorsal, subdorsal, or apical (>. 



Third antennal joint round, oval, or pointed ; 



arista alwaj's apical 9. 



(i. Arista apical; palpi wholly bare, much en- [p. 122. 



larged, spatulate M 



Arista dorsal or subdorsal ; palpi slender, 



always pubescent, generally bisinuate, more 



conical and pointed than in Leptis and 



Chrysopilus 7. 



7. Eyes in d separated by about the width of 



the ocellar tubercle, or actually contiguous 



for a short distance ; in $ the frons three 



times as wide as the ocellar tubercle .... 8, 



