364 Mr. T. D. A. Cockerell — Descriptions and 



with hind edge projecting, sharp, emarginate in middle ; 

 axillae obtusely angulate. The abdomen is wholly without 

 yellow or white lands, but the base of the sixth segment 

 shows obscure pallid spots alternating with dark ones. 



Appears to be related to Dianthidium ferrugineum (Fabr.). 



Eucera cinerascens, Walker, 1871. 



Another unrecognized species. I have not seen the male 

 type, but a female from the convent garden at Mount Sinai, 

 which Walker thought probably conspecific, is an Anthophora. 

 It is in wretched condition, with matted hair; clypeus black, 

 with a keel or ridge on its upper two-ihirds in the median 

 line ; labrum with a pair of basal yellowish spots. 



Tetralonia spoliata, Walker, 1871. 



Also unknown to recent writers. Walker's female from 

 Mt. Sinai is in bad condition ; hair of head and thorax above 

 badly matted, but appears to have been deep fulvous ; clypeus 

 all black, densely and coarsely punctured ; abdominal bands 

 yellowish, hind margin of first segment rather broadly rufou> ; 

 wings not dark. Comparison with Walker's description 

 shows that the latter is inaccurate as well as too short. 



Ccelioays philippensis, Bingham, 1895. 



I have examined the male type. Anterior wings dark 

 fuscous, shining violaceous ; head and thorax with extremely 

 large punctures ; abdomen 8-dentate. Easily recognized by 

 the first abdominal segment being dorsally covered with fine 

 moss-like white tomentum. 



Halictus dybowskii, Rad., 1877. 



A female in the British Museum is one of those collected 

 by Djbowsky. It is a large black species, very shiny, with 

 large strongly tridentate mandibles. Head large, face very 

 broad ; clypeus sparsely punctured ; area of metathorax pli- 

 catulate, its apical part transversely wrinkled ; apical trunca- 

 tion of metathorax with the lateral marginal keels going about 

 halfway up ; anterior wing 9^ mm. ; wings dusky, venation 

 normal ; hind spur very finely denticulate, the denticles 

 minute, short, and numerous ; abdomen with no apical hair- 

 bands, but some basal pale pubescence. 



