IOO ENTOMOLOGICAL NEWS [Mar., '14 



satus. The same is also true of the larger size which is almost 

 constant for H. euryceps. H. zophops is also closely related 

 to H. euryceps and H. versatus, but differs from both in the 

 produced clypeus and the faintly metallic tinge of the abdomen. 



Halictus jamaicae sp. nov. 



$ Length 4 to 4.5 mm. Head, pleurae and metathorax dark metallic 

 green, mesonotum more brassy, sometimes with a coppery reflection ; 

 abdomen shiny piceous. 



Facial quadrangle square, clypeus produced less than one half its 

 length below the eyes; face somewhat shiny, although finely lineolate 

 throughout and with numerous fine punctures, especially close above 

 the antennae; lateral areas of the face with whitish pubescence; distal 

 half of the clypeus very dark brown. 



Mesonotum sharply and finely lineolate ; the punctures fine and scat- 

 tered, except in the areas just outside of the parapsidal grooves and 

 along the posterior margin, where they are closely crowded ; median 

 groove distinct. Entire basal area of the metathorax very distinctly 

 lineolate; the margin elevated for only a short distance on either side 

 of the middle; rugae weak, turning laterally on either side of the 

 short middle ridge and continued over the side of the segment. Tegulae 

 testaceous, impunctate. 



Legs dark brown to black, knees and tarsi all testaceous. 

 Wings faintly dusky; stigma and nervures dark brown. 

 Abdomen rather slender, the first, second and third segments a 

 little inflated on either side, just above the broad apical margins; black 

 with brown or sometimes faint metallic reflections, very shiny in spite 

 of the very fine, shallow and close punctures; apical margin of each 

 segment dark testaceous, impunctate. 



Pubescence scant; slightly buffy on the legs, the fifth abdominal 

 segment, the mesonotum and the free margin of the clypeus, white 

 on the lateral areas of the face, the cheeks and the pleurae. 



$ 4.5 to 5 mm. long. Quite like the female; the abdomen more 

 slender, the apical margin of each segment narrow and distinctly con- 

 stricted; face triangular, clypeus more produced, entirely green and 

 evenly punctured like the lateral areas of the face, mesonotum less 

 lineolate. Tegulae dark brown, a very little elongate and slightly 

 pointed behind, a few weak punctures along the posterior margin, 

 otherwise impunctate. Second submarginal cell little more than one- 

 half as long as the third. Face and cheeks more pubescent. 



Habitat. Liguanea Plain, Jamaica, females i (type) 

 and 6 cotypes, males 5 cotypes (C. T. Brues) ; 3 cotypes of 

 the male (Mrs. C. T. Brues) ; November and December, 1911. 



This species is related to H. coactus Cresson by the similar- 



