DIPTERA. 155 



black, tawny towards the base and along the fore borders. Length of the 

 body 4 lines ; of the wings 7 lines. 



East India. 



Genus LEPTOGASTER, Meiffm. 



Leptogaster multicincta, Mas. 



Fusca, capite albo, pec fore cano, abdomine fulvo segmentorum discis piceis, 

 antennis nigris bast fulvis,pcdibus Jlavis fulvo piceo nigroque cinctis, 

 alts limpidis. 



Head tawny, adorned with a white covering, clothed with a few white 

 hairs : eyes brassy, meeting on the crown ; a few very large facets in front, 

 which is flat: suclcer black : feelers black ; first and second joints tawny ; 

 chest brown gray and beset with a very few black bristles on each side : 

 breast hoary : abdomen pitchy, nearly four times the length of the chest ; 

 appendages of the tip very large ; segments adorned with tawny bands, 

 and on each side with tawny, triangular spots ; under side tawny : thighs 

 pale yellow, tawny towards the tips which are black ; hind-thighs club- 

 shaped, pale yellow for full half the length from the base ; this colour is 

 divided by a pitchy band from the tawny hue, which extends to the black 

 tips ; tips of the shanks pitchy ; each hind-shank adorned with a pitchy 

 band ; feet tawny ; pale yellow at the base, pitchy at the tips ; claws 

 black: wings colourless ; wing-ribs tawny ; veins black, tawny at the base ; 

 poisers pale tawny. Length of the body 4^ lines ; of the wings 6h lines. 



South America. 



PHENEUS, n. g. 



Antennis articuli lus et 2us breves; 3us longior, conicus ; seta arti- 

 culis praecedcntibus multo longior : pedes postici longi, validi : areolae sub- 

 marginales duse ; areolae posticae sex, la et 3a clausae ; 2a, 4a, 5a et 6a 

 apertae. 



Male. Eyes nearly meeting on the crown : sucker short, not mucli 

 formed for carnivorous habits ; first and second joints of the feelers short ; 

 third longer, conical ; bristle longer than all the preceding joints : hind- 

 legs much longer and stouter than the two other pair ; claws and fool- 

 cushions very small : two submarginal arcolcts ; six posterior areolets ; the 

 first and third closed near the border of the wing ; the other four open. 



