194 DIAGNOSES OF NEW 



Nemochaeta frontalis n. sp. <?. — Black, including the 

 antennae and legs; head whitish; front laterally bluish-black, 

 shining, the frontal baud opaque, deep black; palpi fulvous; thorax 

 anteriorly greyish; abdomen convex, black or pieeous ; foot-claws 

 yellow with a black tip; tegulae and base of the wings brownish. 



— Length 14 mm. 



Nemochaeta nitida n.sp.<?j. — 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 JO mm. 



Nemochaeta infuscata n. sp. %. — Black; head whitish; 

 antennae rufous, the third joint brown at the tip; palpi ochraceo us; 

 thorax anteriorly whitish-grey; abdomen pieeous; 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. g. — Cinereous; head and anal 

 segment ochraceous; frontal band, four thoracic stripes , reflections 

 on the abdomen, third antenna! 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. j. — Thorax and scut ell um 



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. %. — 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 (i mm. 



