T. D. A. COCKERELL. 235 



Hab.— Cairns, Queensland, " Kur., 4. 02 " ( Turner). Brit- 

 ish Museum. 



The female is the type. 



Halictus papuarum sp. nov. 



9 . Length about 5 mm. ; black, face, front arid mesothorax dull, 

 the scutellum more shining ; abdomen brownish, very dark, disc of 

 first segment dark reddish, no hair-bands or patches, but apical seg- 

 ment with much yellowish hair; wings somewhat dusky, nervures and 

 stigma piceous, third t. c. and second r. n. much weakened. Head 

 broad ; mandibles bright ferruginous ; antennae dark, scape reddish 

 at extreme base, flagellum brownish beneath ; clypeus, face and front 

 without evident punctures, the front microscopically tessellate ; meso- 

 thorax microscopically tessellate, with scattered extremely minute 

 punctures ; scutellum similar but smoother ; area of metathorax hav- 

 ing fine irregular anastomosing ruga? on its basal half, its apical rim 

 distinct, shining; posterior truncation hairy; sides of metathorax 

 with long hair; tegulse light yellowish-testaceous; second s. m. very 

 narrow, much higher than broad, receiving first r. n. very near its 

 apex; third s. m. broad below, narrower above, the third t. c. with a 

 single gentle curve ; legs black, with pale yellowish hair, the knees 

 more or less red ; the tarsi ferruginous, the basitarsi more or less 

 dusky ; anterior basitarsus rather broad ; hind spur with three very- 

 large blunt teeth, the other spur of hind tibia minute ciliate (denticu- 

 late); abdomen microscopally transversely lineolate, the hind margins 

 very slightly rutescent ; a copious ventral abdominal scopa. 



Related to H. latitarsis Friese, but smaller, with red man- 

 dibles. 



Hab. — New Guinea, " Kai Tubaut, '09" {Dr. Neuhauss) . 

 Berlin Museum. 



A very commonplace little species, chiefly noticeable for 

 its small size. 



Halictus lanarius Smith. 



This was based on a female from Hunter River, New 

 South Wales. Five females are in the Berlin Museum, four 

 from Adelaide (Schomburgk) , one from "New Holland" 

 (Shotski). The hind spur is peculiar, being apparently 

 simple except for a very large broad truncate tooth near 

 the base ; with a high power of the microscope, the simple 

 part is seen to be obscurely subdenticulate. I think H. lanu- 

 ginosus Sm. is the male of this. Smith recognizes a female 



TRANS. AM. ENT. SOC, XXXVI. AUGUST, 1910. 



