GG2 Mr. T. D. A. Cockerell — Descrijjtions and 



Halictus coolcyi, Crawford. 



Top of ridge, Rio Ruidoso, New Mexico, at flowers of 

 Solidago trinervata, Greene, prox. 7600 ft., Aug. 2 (C. //. 7". 

 Townsend). New to New Mexico. 



Halictus horishensis, sp. n. 



^ . — Length nearly 9 mm., anterior wings 6 mm. 



Black, with elongate parallel-sided abdomen, which is 

 2^ mm. wide ; head ordinary, somewhat longer than broad, 

 the occipital region elevated ; hair of head and thorax pale 

 yellowish grey, long and light ochreous on scutellums ; 

 vertex shining, front minutely rugose ; clypeus Mith a 

 yellowish-white transverse subapical band, not reaching 

 sides; labrum black; mandibles strongly elbowed, ferrugi- 

 nous beyond the middle ; cheeks rounded ; antennse long, 

 black, the flagellum with a very faint coffee-brown tint 

 beneath. Mesothorax shining, but strongly and densely 

 punctured, not tessellate between the punctures ; teguke 

 ferruginous clouded with fuscous, apparently impnnctato, 

 though some minute discal punctures can be seen with the 

 compound microscope ; scutellum sculptured like meta- 

 tliorax ; pleura with the punctures running into transverse 

 grooves ; area of metathorax well-defined, pointed behind, 

 shining, with strong oblique rng?e. AVings dusky, stigma 

 and nervurcs red-brown ; outer uervures distinct ; second 

 s.m. small and narrow, less than half the size of third, 

 receiving first r. n. very close to end ; third s.m. of the sub- 

 quadrate type. Legs black with pale hair, the tarsi black, 

 with OTily the apex of the last joint ferruginous ; abdomen 

 shining, minutely but distinctly punctured ; hind margins 

 of segments dark ; no apical hair-bands, but bases of seg- 

 ments with broad uniform greyish-white shaggy hair-bands. 



Hab. Horisha, Formosa {T. Fukai). U.S. National 

 Museum. 



Among the species described from Formosa this can only 

 be compared with H. fonnosa, Strand, from which it differs 

 by the narrower, parallel-sided abdomen, the yellowish-white 

 spurs, the basal bands of abdomen not narrowed medially, ^scc. 

 In IJingham^s table of Lidian species it runs exactly to 

 H. dasygastcr, Yaehal, of which only the female is known ; 

 but horishensis appears to dilfer sufficiently by the greyish- 

 white abd(miinal bands, dusky wings, and smaller second 

 submarginal cell. Among the European species it (juite 

 closely resembles H. scxiwtutus, but is easily separated by 



