IO2 ENTOMOLOGICAL NEWS [Mar., '14 



Abdomen shiny black, the disc <jf the first segment impunctate, the 

 rest with very fine scattered punctures. 



Pubescence very scant, a few fine whitish hairs on the sides of the 

 third to fifth abdominal segments, on the lateral areas of the face, 

 the cheeks and the pleurae, hair of tarsi yellowish. 



Habitat. Quirigua, Guatemala. I (type) and I co- 

 type, February and March, 1912 (W. P. Cockerell, at flowers 

 of 21). 



This species was at first confused with H. exiguus Smith, 

 which it closely resembles in size and character of the meta- 

 thorax ; and from which the produced clypeus, dark tegulae 

 and legs and a closely punctured area on either side of the 

 parapsidal grooves separates it. If it is considered as closely re- 

 lated to H. exiguus, it must go into the group with H . zephyrus, 

 but all the members of this group have the clypeus short and 

 the punctures of the mesonotum scattered. It is probable that 

 this species really belongs in the group with H. hortensis 

 Lovell and H. jamaicae, both of which have a very similar 

 pattern of punctures on the mesonotum ; while H. sparsus Rob- 

 ertson, and H. tennis Ellis, of the same group, have a produced 

 clypeus; the loss of a few plicae would make the metathorax 

 of H. hortensis resemble that of H. deceptor. 



Halictus perparvus sp. nov. 



9 Length 3 mm. Head and thorax dark blue green, mesonotum olive 

 green, with brassy tints. 



Head round; clypeus produced; face finely and closely punctured, 

 and sharply lineolate, except on the clypeus and supraclypeal area; 

 front a little inflated just above and to either side of the short median 

 carina. 



Mesonotum finely lineolate, finely and quite closely punctured, the 

 punctures a little coarser and somewhat crowded along the posterior 

 half of the deep median groove and on either side of the parapsidal 

 grooves. Scutellum finely and closely punctured. Basal area of the 

 metathorax lineolate, the surface of the numerous, weak, indistinct 

 plicae finely granular, the middle plica stronger and reaching the 

 truncation ; the narrow rounded margin slightly elevated on either side 

 of the middle but not forming a rim ; plicae continued on to the 

 sides of the segments laterally. Tegulae dark brown, shiny, but with 

 very fine rather close punctures. 



Wings somewhat dusky, stigma and nervures grayish testaceous; 

 second submarginal cell much smaller than the third. 



