66 HYMENOPTERA. 



vering the eyes ; it is palest on the cheeks.. Thorax, beneath the 

 post-scutellum the metathorax is very finely granulated, the mar- 

 gins of the truncation polished ; the tegulae and neuration of the 

 wings piceous, the latter splendidly hyaline ; the legs black, the 

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

 segments highly polished, darker than the intervening portions, 

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

 Male. Coloured and sculptured as in the other sex, the eyes 

 more densely pubescent, antennae elongate, the flagellum testa- 

 ceous beneath ; the apex of the clypeus and the labrum white ; 

 abdomen elongate, subcylindric, 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 tegulse 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. Chili. (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 antennas rufo-piceous towards 

 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 broadly pale testaceous, the apex fulvous, beneath coarsely 

 punctured. 

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



