66 HYMENOPTERA. 



verinstlie eyes ; it is palest on the eliceks. Tliornx, beneath the 

 post-seuteUum the nietathoriix is very finely granulated, the mar- 

 gins of the truneation ])olishe(l ; the tegnlic and neuration of the 

 wings pieeons, the latter s])k'ndidly hyaline ; the legs blaek, the 

 pubeseenee fuscous. Abdomen olive-green, the margins of the 

 segments higlih' polished, darker tliiin the intervening ])ortions, 

 the first and second depressed ; margins of the anal rima fuscous. 

 Male. — Coloured and scul])ttu'ed as in the other sex, the eyes 

 more densely pid)eseent, antenuic elongate, the flagellum testa- 

 ceous beneath ; the apex of the clyi)eus and the labrum white ; 

 abdomen elongate, subeylindric, narrowed towards the base. 

 Hab. Columbia. (Coll. W. W. Saunders, Esq.) 



94. Halictus maculosus, n. s. 



Female. Length 4,^ lines. — Black, the face covered with a 

 thin ochraceous pubescence ; the clypeus truncate, and having 

 large scattered punctures ; the flagellum testaceous towards the 

 apex. Thorax, the disk smooth, shining, and very delicately 

 punctured, the enclosed space at the base of the metathorax 

 smooth and shining ; wings hyaline, fulvous towards their base, 

 the tegulcTc and nervures fulvo-testaceous ; the femora, tibiae and 

 tarsi bright fulvo-testaceous, the anterior femora black towards 

 the base. Abdomen ovate, subdepressed, on the basal margins 

 of the second and third segments laterally a snow-white angular 

 spot; apex of the abdomen fulvous; anal rima ferruginous. 

 Hab. Chih. (Coll. F. Smith.) 



95. Halictus cristatus, n. s. 



Female. Length 4 lines. — Black, the head dark green, deli- 

 cately and very closely punctured ; the clypeus shining black, 

 having large deep punctures ; the antenna; rufo-piceous toM'ards 

 their apex beneath. Thorax, the disk shining, covered with 

 very delicate and close punctures interspersed with a few larger 

 ones ; a tuft of fulvous pubescence on each side covering the 

 tubercles ; wings subhyaline, prismatic, nervures testaceous, the 

 stigma palest ; the pubescence on the legs pale fulvous, claws 

 ferruginous. Abdomen shining, very delicately punctured, ex- 

 cept the sides of the two basal segments, which are covered with 

 large coarse punctures, a row of punctures along the basal margin 

 of the segment, the apical margins of the second and third seg- 

 ments l)roadly pale testaceous, the apex fulvous, beneath coarsely 

 punctured. 



Hab. Chili? (CoU. W. W. Saunders, Esq.) 



1 



