OF WASHINGTON, VOLUME XIX, 1917 165 



nae, but with strong lateral carinae from base to spiracle and from spiracle 

 to apex. 



Black, with whitish to yellowish markings as follows: mandibles, palpi, 

 apex of clypeus, antennal insertions, scape and pedicel beneath, pronotum 

 anteriorly, propleura largely, front and middle coxae and trochanters, 

 hind trochanters below, tegulae, spot below, scutellum and post scutellum, 

 tergal sutures, and apical tergite; antennae brown; legs testaceous, hind 

 tibiae and tarsi fuscous; wings hyaline. 



Male. Differs from female principally in color, the markings being 

 paler and embracing the entire face, cheeks, entire ventral surface of 

 thorax except metasternum, extending up nearly to dorsal margin of meso- 

 pleura, ventral surface of all legs except tarsi, a central spot on mesoscutum, 

 occasionally a small spot on each side of prescutum, more or less obscure 

 spots laterally on propodeum, and much broader bands on abdomen. 



Zemiodes (?) variabilis (Provancher). 



Mesoleptus variabilis Provancher, Nat. Can., VII, 1875, p. 115, (not 1882). 

 Mesoleptus muliebris Cresson, Provancher, Nat. Can., XI, 1879, p. 227. 



Provancher s^ynonymized these two, but the synonymy is in- 

 correct. 



Euryproctus sentiris Davis. 



IMesoleptus variabilis Provancher, Nat. Can., XIV, 1882, p. 7. (not 1875). 

 IMesoleptus provancheri, new name for variabilis Provancher, 1882 not 1875. 

 Euryproctus sentiris Davis, Trans. Am. Ent. Soc., XXIV, 1897, p. 330. 



NEW HYMENOPTERA 



BY J. C. CRAWFORD. 



Hesperapis Ckll. 



Professor Oockerell has recently (Psyche, XXIII, 176-178, 

 1916) published on the synonymy of this group, and at present 

 it seems best to treat Zacesta and Panurgomyia as synomyrns of 

 this genus. 7.. rufipes is very similar to the genotype of Hesperapis 

 and is probably the male of a very closely allied species. Pan- 

 uryonnjid fnc/ixi belongs to the group of H. eumorpha and (Pannr- 

 gus) H. regularis Cress, and is very close to regularis. The type 

 of fuchsi is in bad condition and the identification is, therefore, 

 somewhat uncertain. 



The following table will separate the males of the group of 

 rhodocerata and allies, that is those in which the propodeal triangle 

 is not closely punctured but mostly smooth. 



