194 DIAGNOSES OF NEW 
Nemochaeta frontalis n. sp. 4. -— Black, including the 
antennae and legs; head whitish; front laterally bluish-black, 
shining, the frontal band opaque, deep black; palpi fulvous ; thorax 
anteriorly greyish; abdomen convex, black or piceous; foot-claws 
yellow with a black tip; tegulae and base of the wings brownish, 
— Length 11 mm. 
Nemochaeta nitida n. sp. d 9. — Shining black; head whitish; 
frontal band brown; basal joints of the antennae, and palpi rufous ; 
thorax anteriorly whitish; foot-claws black; tegulae and base of 
the wings fuscous, the dark colour covering the two inferior basal 
cells, — Length 10 mm. 
Nemochaeta infuscata n. sp. 2. — Black; head whitish; 
antennae rufous, the third joint brown at the tip; palpi ochraceous; 
thorax anteriorly whitish-grey; abdomen piceous; foot-claws black ; 
tegulae and base of the wings fuscous, the dark colour covering 
not only the two inferior, but also the whole superior basal cell. 
— Length 10,5 mm. 
Cnephalia ochriceps n. sp. e. — Cinereous; head and anal 
segment ochraceous; frontal band, four thoracic stripes, reflections 
on the abdomen, third antennal joint, and legs, black; palpi and 
basal joints of the antennae rufous; wings without any yellowish 
tint at the base. — Length 11,5 mm. 
Gymnochaeta subviridis n. sp. 9. — Thorax and scutellum 
metallic green, covered with grey tomentum; abdomen violet ; head 
whitish; antennae and legs black; palpi rufous; curvation of the 
fourth vein rectangular. — Length 9 mm. 
Meigenia albifacies n. sp. g. — Blackish; front borders of 
the second and third abdominal segments cinereous; head silvery- 
white; frontal band, antennae, and legs black; palpi rufous; bristles 
of the hind tibiae short and not fringe-like. — Length 6 mm. 
