1052 LIST OF DIPTERA. 



are slightly tinged with brown ; wing-ribs tawny ; veins black, 

 tawny at the base ; third longitndinal vein slightly inclined upward 

 after its junction with the lower cross-vein, approaching very near 

 the second at the tip of the wing ; lower cross-vein nearly straight, 

 slightly oblique, distant by more than half its length from the hind 

 border, by much more than thrice its length from the middle cross- 

 vein, and by full five times its length from the tip of the wing ; 

 poisers ferruginous, with pitchy knobs. Length of the body 5 

 lines ; of the wings 8 lines. 



Calobata respondens, n. s., mas. Cinereo-nigra, capite cyaneo albo 

 micante, abdoyninis suturis ventreque piceis, antennis ferrugineis y 

 pedibus piceis, femoribus antieis basi Jlavis, femoribus posticis 

 Jlavo tricinctis, tibiis posticis ferrugineo fasciatis, tarsis antieis 

 flavis basi piceis, alis limpidis fusco bifasciatis. 

 Body black, slightly tinged with gray : head and chest beset 

 with a few black bristles : head blue, shining, adorned with white 

 lustre ; crown velvet-like black, excepting the sides and a space 

 about the eyelets, which is pitchy, and covered with hoary bloom 

 sides of the face without bristles ; epistoma slightly prominent 

 eyes red ; facets of the fore part a little larger than those elsewhere 

 sucker pitchy, clothed with tawny hairs : feelers ferruginous, shorter 

 than the face ; third joint conical, darker and a little longer than 

 the second ; bristle black, slender, bare, ferruginous at the base, full 

 thrice the length of the third joint : abdomen cylindrical, not half 

 the breadth of the chest, but more than twice its length ; borders of 

 the segments and under side pitchy : legs dark pitchy ; fore thighs 

 yellow at the base ; fore feet yellow, pitchy at the base ; hind thighs 

 adorned with three yellow bands ; hind shanks ferruginous from the 

 middle till near the tips ; claws black : wings colourless, adorned 

 with two brown bands ; one near the base, disappearing as it ap- 

 proaches the hind border ;,the second darker and more complete than 

 the first, extending a little beyond the lower cross-vein ; wing-ribs 

 and veins tawny, the latter pitchy in the brown parts of the wing ; 

 lower cross-vein straight, nearly perpendicular, distant by more 

 than thrice its length from the middle cross-vein ; poisers yellow, 

 with pitchy knobs. Length of the body 4^ lines; of the wings 8 

 lines. 

 a. Sierra Leone. Presented by the Rev. D. F. Morgan. 



