hymenoptera. 65 



89. Halictus rubellus. 



Halictus rubellus, Halid. Linn. Trans, xvii. p. 321. 

 Hal. Chili. (Coll. W. W. Saunders, Esq.) 



90. Halictus insignis, n. s. 



Male. Length b\ lines. — Black, except the head, which is 

 dark green ; the clypeus very convex, not much produced ; the 

 eyes subemarginate, the ocelli large and brilliant. Thorax 

 clothed with fulvous pubescence, sparingly so on the disk, most 

 dense on the shoulders ; the base of the metathorax very smooth 

 and shining ; tegulse rufo-piceous ; wings rufo-hyaline, nervures 

 ferruginous ; legs dark rufo-testaceous, tarsi ferruginous, clothed 

 with fulvous pubescence, which is also thinly scattered on the 

 tibiae and femora. Abdomen elongate-ovate, very delicately 

 jjunctured, except the basal segment, which is impunctate and 

 highly polished ; towards the apex the abdomen has a green tinge, 

 and a short hoary pubescence intermixed with long fulvous hairs ; 

 beneath, rufo-piceous. 

 Hah. South America. (Coll. W. W. Saunders, Esq.) 



91. Halictus Leprieurii. 



Halictus Leprieurii, S^tin. Ann. Soc. Ent. Fr. vii. 137. 86. 

 Hab. Cayenne. 



92. Halictus gemmatus, n. s. B.M. 



Female. Length 2 lines. — Head and thorax coppery green, 

 head very tinely and closely punctured, the antennae, apex of the 

 clypeus, labrum and mandibles rufo-piceous ; legs rufo-piceous, 

 the tarsi palest ; disk of the thorax shining, very delicately and 

 distantly punctured ; the enclosed space at the base of the meta- 

 thorax on each side irregularly but finely rugose-striate ; the 

 tegula; testaceous ; wings hyaline and splendidly iridescent. 

 Abdomen rufo-testaceous, the margins of the segments palest, 

 thinly covered uith a scattered white pubescence, principally 

 towards the apex. 

 Hab. Jamaica. ^ 



93. Halictus modestus, n. s. 



Female. Length 3| lines. — The head and thorax green, the 

 disk of the latter sometimes brassy, both very delicately and very 

 closely punctured ; antennae, mandibles and apex of the clypeus 

 black ; the mandibles nigro-piceous towards their apex ; the head 

 has a long thin fuscous pubescence, which clothes it entirely, co- 



