AMERICAN HYMENOPTERA. 231 



APID.E. 



Halictus ecuadoreiisis sp. nov. 



Brassy -green, the abdomen darker, with the apical half of the segments black- 

 ish brown, smooth and shining; the antenute black, the flagellum brown beneath, 

 the wings clear hyaline, the nervures and stigma black. %> . Length 6 mm. 



Head closely punctured and covered with longish white hair; the middle of 

 the face is clearly separated by furrows from the cheeks, which are more strongly 

 punctured, thickly covered with white hair and brassy in tint. Clypeus closely 

 and minutely punctured and having also some larger scattered punctures, its 

 apex and the labrum are yellow. Mandibles black, reddish near the apex. 

 Thorax closely, distinctly and minutely punctured and sparsely covered with 

 longish white hair. Wings clear hyaline; the 1st recurrent nervure is intersti- 

 tial. Legs black ; the femora dark bronzy above ; the tarsi dark testaceous and 

 thickly covered with bright, white pubescence. The area on the metauotum is 

 not defined ; the base is closely, minutely, irregularly striated ; the furrow on the 

 apical slope is wide, deep and smooth ; the apex of the pygidium projects semi- 

 eircularly and has a distinct raised margin. 



Hab. — Quito to Guillabamba, 9000 feet. 



CJENOHAL.ICTUS gen. nov. 



% — Eyes clothed with long hair, large, distinctly curved inwardly 

 on the innerside. Ocelli in a curve. Clypeus produced below ; its 

 apex broad, transverse. Pubescence plumose. Wings large, their 

 ueuration as in Halictus. Spurs finely and closely pectinated. 



The temples are not prominent and are obliquely narrowed ; the 

 malar space is small. Mandibles deeply grooved in the middle. 

 Labrum large, broad and transverse at the apex. Basal joint of 

 tarsi not much dilated. Antennae stout, their joints clearly separa- 

 ted ; they are as long as the abdomen. There is no area on the 

 metauotum. The abdomen is not much longer than the head and 

 thorax united ; it is moderately hairy ; the pygidium is smooth and 

 shining ; its sides are distinctly raised. 



The affinities of this genus are clearly with Halictus, from which 

 it may be known by the hairy eyes and by the plumose pubescence. 

 It is hair, not pubescence, which is on the eyes, not a close short 

 pubescence as in e.g. Ccelioxys. It is almost as long as the hair on 

 the head, and is shortly plumose. The 9 I do not know. 



« aenohalictus trichiothaliniis sp. nov. 

 Dark olive-blue ; the apical half of the abdominal segments black, smooth, bare 

 and shining; the antenna; black, the apex of the clypeus dark bronze ; the wings 

 clear hyaline, the nervures and stigma black ; the underside of the tarsi clothed 

 with pale golden hair. %, . Length 7-8 mm. 



TRANS. AM. ENT. SOC, XXIX. JULY, 1903. 



