558 LIST OF DIPTERA. 



mouth piceous : feelers ferruginous : scutcheon tawny : abdomen 

 brassy black, a little narrower than the chest and less than twice its 

 length : legs bright tawny, clothed with short tawny hairs ; a 

 darker streak along each thigh ; shanks paler towards the base ; 

 tips of feet piceous : wings tawny along the fore borders on half the 

 breadth, slightly gray along the hind borders ; wing-ribs and veins 

 piceous, the latter ferruginous towards the base; poisers tawny. 

 Length of the body 5 lines ; of the wings 9 J lines. 



a. Georgia. From Mr. Abbot's collection. 



Xylota laphriaeformis, n. s. JEnea, fronte ferrugineo, abdominis 

 lateribus basi fulvis, antennis piceis, pedibus ferrugineis, femo- 

 ribus basi fulvis, femoribus posticis et tibiis apice tarsisque pi- 

 cm, alis subfulvis. 



Body brassy, thickly clothed with tawny hairs : head partly 

 covered with tawny down, ferruginous in front : mouth pitchy ; 

 feelers pitchy, covered with whitish down, tawny at the base : eyes 

 black ; all the facets very small : abdomen elliptical, a little longer 

 and broader than the chest, tawny on each side at the base : legs 

 ferruginous, clothed with tawny hairs and down ; thighs tawny to- 

 wards the base ; hind thighs covered beneath with short black 

 spines, pitchy above towards the tips ; shanks pitchy towards the 

 tips ; feet pitchy ; claws and foot-cushions tawny ; tips of claws 

 black : wings slightly tawny ; wing-ribs and veins ferruginous, the 

 latter pitchy towards the wings ; cross-veins clouded with brown ; 

 poisers yellow. Length of the body 5 lines ; of the wings 10 lines. 

 a. ? From Mr. Children's collection. 



Xylota Oarus, n. s., mas. JEnea, antennis ferrugineis, pedibus 

 eeneis, tarsis fulvis, tibiis anterioribus piceo-ferrugineis, tarsis 

 posticis ferrugineis , alis subcinereis. 



Body brassy, very thickly clothed with pale tawny hairs : head 

 a little narrower than the chest ; front adorned with white shining 

 down : eyes dark red ; facets small : mouth piceous : feelers ferru- 

 ginous ; bristle tawny : abdomen a little narrower than the chest, 

 less than twice its length : legs brassy, thickly clothed with pale 

 tawny hairs ; foot-cushions and claws tawny, the latter with black 

 tips ; pitchy streaks on the ferruginous shanks of the four front 

 legs, whose knees and feet are tawny ; hind knees and hind feet 

 ferruginous : wings slightly gray ; wing-ribs piceous ; veins ferru- 

 ginous, piceous towards the tips ; poisers pale tawny. Length of 

 the body 4 lines ; of the wings 8 lines. 



a. Trenton Falls. Presented by E. Doubleday, Esq. 



