Records <>/ Bees. 1 1 .". 



tegulae (in littleri these are clear red). The second sub- 

 marginal cell is much narrow -v below than in littleri. The 

 tubercles are black (red in littleri). 



Launceston, Tasmania, Dee. 27, L915 | Littler, 2172). 



Ha/ictus erythruruSj Cockerell. 



Launceston, Tasmania, Dec. L9 and £5, l'Jlj [Littler, 

 2807;. New to Tasmania. 



Halictus tusmau'ue (Cockerell) . 



St. Helens, Tasmania, Jan. 1-1, L916 (Littler, 2808). The 

 meso thorax is very faintly greenish. 



Tiiyona par as tiff ma, sp. n. 



Trigona stigma, Cockerell, 'Psyche,' 1913, p. 11 (Las Sabanas, 

 ma ). 



A specimen from Maroni, French Guiana (Queensland 

 Mns.. 53), differs from the Panama and Guatemala insect by 

 the larger, broader head, the sides of the face broadly and 

 strongly white-pruinose. This must be the true stiyma, of 

 which Smith says, " head wider than the thorax, the face 

 anteriorly having a silvery pile." In the other form, which 

 I have hitherto regarded as T. stigma, the head is not so 

 conspicuously broad, and while the face has a very thin 

 pubescence, there is nothing to produce a white surface. The 

 male from Trinidad seems to belong to T. parastigma. The 

 two species are certainly very closely allied, and yet evidently 

 distinct. 



Andrena ribifloris, Viereck & Cockerell. 



? . — Variety with pale hair, the long hair on first two 

 abdominal segments white. 



Near Gresham, Colorado, at flowers of Ribes saxosum, 

 June 8 (W. P. Cockerell). 



Andrena opacissima, sp. n. 



$ . — Length about 8 mm.; anterior wing 7"2 mm. 

 Dull black, the head and thorax with long white hair, 

 faintly creamy dorsally ; facial quadrangle broader than 

 long; cheeks with very long hair; process of labrum small, 

 obtusely pointed; clypeus with long hair, feebly punctured, 

 minutely transversely striate ; facial foveae rather broad, 



