6GC) Mr. T. D, A. Cockerell — Uescriptions and 



vertex hardly sliiuing ; mesotliorax and scatellum dull, 

 extremely densely and finely punctured ; thorax above 

 reddish from short hair ; prothorax not angulate at sides in 

 front; base of raetatiiorax large, the pooily defined area 

 with distinct oblique ridges ; truncation sharply defined. 

 Legs black, with reddish hair, that on outer side of hind 

 tibise and tarsi dark fuscous; hind spur with about five 

 short oblique spines (thus entirely different from that of 

 H. recognitus) ', tegulse black. Wings dilute fuliginous, 

 stigma rufo-fuscous, nervures dusky testaceous ; second s.m. 

 broad, receiving first r. n. a short distance before end, 

 third s.m. of quadrate type. Abdomen shining, but very 

 closely and extremely minutely punctured, including the 

 disc of first segment; basal hair-bands pale ochreous- tinted, 

 entire and with the lower edge straight, but often largely 

 concealed through the overlapping of the segments ; hair at 

 apex brownish. 



Hab. Formosa, 5 ? {Saute?'). Berlin Museum. 



Evidently close to H. horishensis, but not its female, on 

 account of the much more finely and densely punctured 

 mesothorax, dark tegulse, &c. 



Halictus perangulatus, sp. n. 



9 . — Length about 10 mm., anterior wing 7|. 



Black, robust, with broad abdomen ; pubescence pale 

 ochreous, lighter below ; head ordinary ; clypeus strongly 

 punctured ; antenuEe dark ; front dull and granular, vertex 

 shining ; mesothorax and scutellum dullish, with very large 

 and strong, not very dense punctures; pleura very hairy ; 

 prothorax at sides in front produced into large triangular 

 sharply pointed shelves ; area of raetathorax with fine more 

 or less sinuous rugae ; truncation sharp-edged at sides. Legs 

 black, with pale ochrcous-tinted hair; a brush of bright 

 fox-red hair at end of hind basitarsus ; hair on inner side of 

 basitarsi orange ; hind spur with about four short blunt 

 laminae behind, and on inner edge with numerous micro- 

 scopical appressed teeth (the spur therefore quite different 

 from that of the three species described al)Ove, but nearest 

 to multistictus, which has pointed teeth in place of the 

 broad blvmt laminae) ; tegulae piceous with the margin paler. 

 Wings dusky, stigma and nervures very dull yellowish 

 testaceous ; second s.m. broad, receiving first r. n. a short 

 distance from end ; third s.m. narrowed about half above, 

 but not much elongated. Abdomen very finely and densely 

 punctured ; broad dense pale ochreous-tinted basal hair- 



