08 l\lr. T. D. A. Cockerell — Descriptions and 



sontcllum with minute punctures ; area o£ metatliorax 

 finelv, regularly plicatulate, the plica more or less joined 

 by little transverse ridges ; tegula black. Wings strongly 

 greyish ; hair on inner side of tarsi light fulvous. Abdomen 

 very broad, shining, finely but not closely punctured ; 

 lateral bases of second and third segments with small 

 triangular patches of white toraentum ; caudal rima pale 

 brownish ; hind margins of segments wholly dark ; venter 

 ■with white hair. 



Hab. Eaglehawk Neck, Tasmania, Feb. 12-March 3, 1913 

 {Turner). British Museum. 



This was taken at the same time and place as numerous 

 male H. isthmalis, and, in spite of the dusky wnngs, I feel 

 assured that it is the female of that species. The general 

 characters, sculpture, &c., are quite the same. 



Halictus pulviteclus, sp. n. 



$ . — Length 6"5-7 mm. 



Black, robust, hind margins of abdominal segments testa- 

 ceous, the first very narrowly, the others successively more 

 broadly, the fourth having a broad whitish margin ; pubes- 

 cence rather dull white above and below, giving the insect a 

 dusty appearance, especially on the fourth abdominal seg- 

 ment, which is conspicuously though thinly hairy ; head 

 broad ; mandibles black, at most slightly marked w ith dark 

 red; clypeus shining, very sparsely punctured; front dull 

 in middle, shining at sides ; flagellum short, with only a 

 slight reddish tinge ; mesothorax and scutellum shining, 

 closely and finely punctured ; area of metathorax glistening, 

 very delicately plicatulate, but irregularly, the ett'ect being 

 that of an indistinct network rather than well-defined striae ; 

 tegulffi rnfo-piceous. Wings brownish, stigma and nervures 

 rather dilute reddish brown ; second s.m. broad, but third 

 much broader; outer r. n. and t.-c. much weakened; first 

 r. n. meeting second t.-c. Legs black, with white hair ; 

 brush at end of hind basitarsus bright red. Abdomen broad, 

 shining, with extremely fine punctures. Microscopical 

 characters: front densely and minutely punctured; meso- 

 thorax not sculptured between the punctures; hind spur 

 with numerous very small stout teeth. 



J . — Length about fi mm. 



Similar in general characters, including a swelling on each 

 side of first and second abdominal segments ; head broad ; 

 labrum and mandibles (except base) ferruginous; clypeus 

 with an apical cream-coloured band ; ilagellum long, nionili- 



