BOMBYLIID.E. 175 



Table of Subfamilies. 



1. Praefurca comparatively long, 2nd longitu- 



dinal vein originating in knee-shaped form 

 from it, approximately opposite anterior 

 cross-vein __ (at most half-way between 

 origin of praefurca and the cross-vein, and 

 this onlyin some species of Argyramceba);* 

 antennae widely separated at base ; frons 



in $ nearly as wide as in $ ANTHRACIN^E, p. 176. 



Praefurca comparatively short, 2nd vein ori- 

 ginating acutely (not in knee-shaped form), 

 always much nearer origin of praefurca 

 than of anterior cross-vein ; antennae 

 nearly always approximate at base ; eyes 

 in J normally contiguous or nearly so, 

 sometimes distinctly separated, but irons 

 always much narrower than in $ f 



2. Abdomen, hind legs, and antennae conspi- 



cuously long; eyes normally contiguous 



. in both sexes; only three posterior cells; 



thorax not unusually humped ; occiput 



concave ; bare species SYSTROPINJE, p. 289. 



Abdomen, legs, and antennae (taken together) 

 not conspicuously long; eyes normally 

 contiguous in J , wide apart in $ ; pos- 

 terior cells usually four; thorax often 

 considerably humped ; occiput generally 

 inflated ; bare, moderately or densely 

 pubescent species 3. 



3. Abdomen rounded or oblong ; often furry ; 



antennae never conspicuously long 4. 



Abdomen more or less cylindrical, bare or 

 with bristly hairs ; antennae very long, 

 especiallv 1st joint ; proboscis nearly 

 always 'long. (Thorax more or less 

 humped, generally with conspicuous 

 bristles ; abdomen drooping ; prothorax 

 sometimes forming a shield ; body often 

 with scaly pubescence) TOXOPHOUIN^:, p. 286. 



4. Abdomen short and rounded; thorax and 



abdomen generally with dense furry pu- 

 bescence ; proboscis long and with small 

 labella;! thorax generally arched ; 2nd 

 longitudinal vein never with a strong loop 

 near tip : head generally narrower than 



thorax .' BOMBYLJIJWE, p. 2o9. 



Abdomen oblong, rather flattened, seldom 

 really furry ; proboscis generally short 

 and with larger labella ; thorax generally 



* At least two (European) exceptions are known, Callistoma &ndMulio 

 t Some species of Usia have the eyes in the rf widely separated, bu 

 are easily recognised by their short, rounded bare abdomen. 

 | Except in a few non-Oriental genera. 



