155. COENOSIA RESPONDENS, n. s. _Foem._ Cana, capite apud oculos albo, palpis albidis, antennis halteribusque testaceis, thorace lineis tribus nigris, abdomine subfusiformi e maculis nigris trivittato, pedibus nigris, femoribus apice tibiisque fulvis, alis cinereis, alulis albis. _Female._ Hoary; head white about the eyes; frontalia reddish; palpi whitish; antennæ testaceous, 3rd joint long, slender, nearly reaching the epistoma; thorax with three black lines; abdomen nearly fusiform, a little longer than the thorax, with three black spots on each segment, legs black, femora towards the tips and tibiæ tawny; wings grey; discal transverse vein parted by about twice its length from the præbrachial transverse, and by about its length from the border; alulæ white; halteres testaceous. Length of the body 2-1/2 lines; of the wings 5 lines. Subfam. HELOMYZIDES, _Fallen_. Gen. XARNUTA, _Walk._ 156. XARNUTA LEUCOTELUS, _Walk._ See Vol. I. p. 28. Gen. CORDYLURA, _Fallen_. 157. CORDYLURA BISIGNATA, n. s. _Mas._ Nigra, vix nitens, antennis breviusculis, arista pubescente, abdomine cylindrico maculis duabus lateralibus albis, pedibus non spinosis, alis obscure cinereis, alulis albis. _Male._ Black, hardly shining; head white behind, testaceous towards the epistoma; antennæ not near reaching the epistoma. 3rd joint linear, rounded, at the tip, full twice the length of the second; arista pubescent; abdomen cylindrical, a little longer than the thorax, with a white spot on each side in the middle; legs unarmed, moderately long; wings dark grey; veins black; discal transverse vein straight, upright, parted by a little less than its length from the border, and by full twice its length from the præbrachial transverse; alulæ white. Length of the body 2 lines; of the wings 3-1/2 lines. Gen. HELOMYZA, _Fallen_. 158. HELOMYZA OBSERVANS, n. s. _Mas._ Fulva, antennarum articulo 3° conico brevi, arista plumosa, abdomine guttis quatuor dorsalibus nonnullisque ventralibus nigris, segmentis albido marginatis, alis subcinereis. _Male._ Tawny, with a few black bristles; antennæ short, 3rd joint conical, less than twice the length of the 2nd; arista plumose; abdomen conical, not longer than the thorax, hind borders of the segments whitish, fourth segment with a black dot, fifth segment with three black dots, some black dots along each side beneath; wings greyish; veins black, testaceous at the base; discal transverse vein straight, upright, parted by full half its length from the border, and by nearly twice its length from the præbrachial transverse. Length of the body 2-1/2 lines; of the wings 5 lines. 159. HELOMYZA TRIPUNCTIFERA, n. s. _Foem._ Fulva, antennarum articulo 3° conico, arista plumosa, abdomine fasciis pallidis guttaque apicali atra, alis cinereis antice subluridis.