366 PROCEEDINGS OF THE ACADEMY OF [May, 



at base and apex; clypeus closely and very strongly punctured, but 

 shining between the punctures; sides of face and cheeks with con- 

 spicuous pure white hair; front extremely densely punctured, the 

 punctures strong, but much smaller than those on clypeus; area 

 behind ocelli with erect fuscous hair; flagellum short, ferruginous 

 beneath apically ; mesothorax and scutellum with very dense distinct 

 punctures; longitudinal median groove of mesothorax distinct ; 

 mesothorax and scutellum with evident pale hair around the edges, 

 but otherwise only with thin short brownish hair, not hiding the 

 surface; postscutellum with a tubercle, from which arises a large 

 spreading tuft of hair, partly brownish and partly whitish; area of 

 metathorax rugulose basally, margin finely beaded; posterior face of 

 metathorax with a large deep pit; legs black, the hind tibiae red, 

 the middle and hind basitarsi very broad; hind tibial scopa large, 

 sordid white, suffused with brown behind; tegulse rufotestaceous; 

 wings dusky; stigma small, dark reddish, nervures fuscous; b. n. 

 just reaching t. m.; second s. m. receiving first r. n. slightly before 

 middle; third s. m. receiving second r. n. nearly as far from end as 

 first r. n. is from first t. c; abdomen thick, very finely punctured; 

 hind margins of segments brownish; segments 2-4 with conspicuous 

 white marginal hair-bands, interrupted or very thin in middle of 2; 

 hair at apex dark fuscous. 



Hob — Yallingup, S. W. Australia, Dec. 1 to Jan. 23, 1913-14. 

 (R. E. Turner; Brit. Museum.) A peculiar little species, resembling 

 Halictus. It may best be compared with P. sigillatus Ckll., but it is 

 smaller than that, with much more closely punctured mesothorax. 

 It may also be compared with the much larger P. perfasciatus Ckll. 



Halictus urbanus Smith. 



Kalamunda, S. W. Australia, Mch. 14-Apl. 14, 1914 (R. E. Turner; 

 Brit. Museum). 1 9 . This species, as I have recognized it, varies 

 considerably in size and the color of the legs; it may be composite. 

 The Kalamunda specimen is small, with red tibiae and tarsi, and 

 agrees with one from Brisbane. This appears to be the true H. 

 urbanus; the larger form (9 slightly over 6 mm. long), with black 

 legs, comes from Stradbroke Island (H. Hacker), and certainly would 

 pass for a distinct species, were it not connected by intermediates. 

 This Stradbroke I. form may take the name variety stradbrokensis , 

 nov. 



Halictus mundulus sp. n. 



9 . Length about 5 mm. ; black, with the mesothorax and scutel- 

 lum dark bluish-green; pubescence scanty, dull white, no abdominal 



