12 MR. walker’s catalogue of dipterous insects 
very few black bristles. Proboscis linear, more slender than that of X. radi- 
calis. Third joint of the antennsB linear, a little longer than the 1st and 
the 2nd, more slender than that of X. radicalis. Thorax with dull tawny 
tomentum ; pectus more cinereous. Abdomen more slightly tawny. Legs 
with cinereous hairs and black bristles. Wings blackish, almost limpid 
towards the base ; veins black. Halteres tawny. Length of the body 5 lines ; 
of the wings 9 lines. 
Singapore. 
35. Laphria fttsifeba, n. s., fcem. Nigra, cinereo-tomentosa, capite albido, 
mystace nigro, antennarum articulo 3° fusiformi, thoracis vittis duabus 
pectoreque canis, abdomine apicem versus rufo, alis subcinereis apud costae 
dhnidium apieale fuscescentibus. 
Allied to X. crassipes, Fabr. Female. Black, with greyish tomentum. Head 
whitish in front, with white hairs beneath ; face very convex towards the 
epistoma. Mystax with a few black bristles. Proboscis oblique, ascending, 
stout, straight, lanceolate. Third joint of the antennae fusiform. Thorax 
with two hoary stripes ; sutures and pectus hoary. Abdomen pale red 
towards the tip which is compressed. Legs with whitish hairs and black 
bristles. Wings greyish, brownish for half the breadth along the apical 
half of the costa ; veins black. Length of the body 6 lines ; of the wings 
12 lines. 
Singapore. 
36. Laphria sobria, n. s,, fcem. Nigra, fulvo - tomentosa, capite albo, 
mystace nigro, abdominis apice glabro, tibiis ferrugineis, alis cinereis basi 
sublimpidis. 
Female. Black. Face flat, with shining white tomentum. Mystax with a 
few black bristles. Proboscis straight, slender, linear. Thorax and abdomen 
with tawny tomentum, the latter bare and shining towards the tip. Pectus 
more cinereous. Tibiae somewhat ferruginous. Wings dark cinereous, 
almost limpid towards the base ; veins black. Halteres testaceous. Length 
of the body 5 lines ; of tho wings 10 lines. 
Singapore. 
37. Laphria plana, n. s., mas. Nigra, cinereo-tomentosa, capite albido, 
mystace nigro, antennarum articulo 3° elliptico, pedibus fulvis, alis cinereis, 
halteribus albidis. 
Male. Black, with cinereous tomentum. Face whitish, flat. Mystax with 
very few black bristles. Proboscis straight, porrect, slightly lanceolate, 
somewhat short. Third joint of the antennse elliptical, a little shorter than 
the 1st. Pectus hoary. Legs tawny. Wings grey ; veins black. Halteres 
whitish. Length of the body 4 lines ; of the wings 10 lines. 
Singapore. 
38. Laphria imbellis, n. s., fcem. Nigra, cinereo-tomentosa, capite albido, 
mystace albo, antennis fulvis, thoracis strigis transversis quatuor lateralibus 
vittisque tribus mtermediis canis, abdominis segmentis maculis lateralibus 
albidis, pedibus fusco-fulvis, alis limpidis apice fuscis, halteribus albidis. 
Female. Black, with cinereous tomentum. Head with white hairs beneath. 
Face whitish, slightly convex towards the epistoma. Mystax with a few 
