;^6 Familiks ani> (;e\eka ok 



lo. liody (iintLiina', tliorax, abdoniuii) clotlied with more scales than 

 hairs, gibbose, the abdomen hanging down ; antennse long, 



first joint unusually long. 14 



JJody clothed with hairs, or else nearly glabrous. . 15 



14. Four posterior cells. ..... Lepidophoea 



I'hree posterior colls Toxoj'Hora 



1-5. Four posterior cells. . . . . ' . . . . IH 



Three posterior cells; anal cell closed. . . . . 2(j 



1(1 First i)ostei'ior cell closed. ....... 17 



First posterior cell oi)cn. ....... 21 



17. Two submarginal cells 18 



Three submarginal cells. ..... Pantarbes 



18. First basal cell longer than the second. . . . .19 

 Both basal cells of equal length. ... 20 



19. Head comparatively small ; the eiiiargination of the occipital 



orbit almost ini]>erceptible ; contact between the second sub- 

 marginal cell and the first posterior more than punctiform. 



BOMBYLIL'S 



Head comparatively' large; the emargination of the occipital 

 orbit distinct ; contact between the second submarginal cell 

 and the first posterior cell often only punctiform. Co.mastes 



20. Underside of the head moderately pilose, and hence its different 



parts (including the base of the antenna', the oral edge, etc.) 



easily perceptible Sy.stcechi'S 



Underside of the head densely j)ilose, the root of the antenniv, 

 epistoma, mouth, etc., being completely hidden. AN.\.sTtEOHUS 



21. Two submarginal cells. ........ 22 



Three submarginal cells 25 



22. Both basal cells of equal length. . . Si'arnopolius 

 First basal cell longer than the second. . . . . 2o 



2^1 Third antennal joint not truncate at the tij). F( i.i.mus, Ei-ibates 

 Third antennal joint flattened, truncate at the tij). . 24 



24. Proboscis short. I'aijaco.smus 



Proboscis very long Piithiuia 



25. The rather narrow marginal cell very much i-xpanded at the end. 



Jairdotls 

 The marginal cell only moderately expanded. Ploas 



