161 



while the examination of the concealed sternites reveal a seventh sternite 

 like that figured by Metz for nevadensis, the eighth sternite is indistin- 

 guishable from that of his H. calvus. 



Type $ , allotype, and paratypes in the anther's collection. 



Hylaeus nevadensis (Cockerell). 



One S collected at Big Lake near Mt. Washington, Oregon 

 (Bridwell) seems certainly this species. The narrow margin 

 of the supraclypeal area is white like the clypens and sides of 

 the face. This is the case also in some individuals of H. 

 polifolii. 



Palaeorrhiza imperialis (Smith). 



Prosopis imperialis Smith. Jonr. Linn. Soc. Zool. 7 :44 



2 Dory 1863. 

 Prosopis malachisis Friese {nee Smith). Ann. Miis. Hung. 



7:184 $ Tenimber Larat 1909. 

 Palaeon-hiza Muiri Perkins. Ann. Mag. jS'at. Hist. (8) 19: 



103 $ Amboina 1912. 

 The description of Prosopis malaehisis Friese S does not 

 mention the carinae on the third nor the angulate second stern- 

 ite but otherwise agrees perfectly. 



One $ collected on Amboina July- August 1908 (F. Muir). 

 It seems likely Prosopis malachisis Smith is also a Polar 

 eorhiza. 



(?) DIPHAGLOSSIDAE 



22. BiNGHAMIELLA AXTIPODES (Smith). 



Sphecodes antipodes Smith. Cat. Hym. Brit. Mus. 

 1:37 2. 1853. 



Binghamiella antipodes Cockerell. Bull. Am. Mus. Nat. 

 Hist. 23:235. 1914. 

 2 2 3 5 Stradbroke I. Moreton Bay, Queensland (J. C. 

 Bridwell), Sept. 20, 1915. 



The tongue of this bee is truncate at apex, scarcely emarginate, ciliate 

 at apex, excavated above, the paraglossae about as long, obliquely deltoid, 



