NO. 1487. NOBTH AMERICAN DIGGER WASPS— FERNALD. 389 



CHLORION (PROTEROSPHEX) ASHMEADI. new species. 



Tijpe. — Described from six female and live male cotypes. Three 

 male and four female eot3'pes are now in the collection of the American 

 Entomological Society; one male and one female are in the collection 

 of the U. S. National Museum (Type, Cat. No. 9858, U.S.N.M.), and 

 the remaining- male and female are in the collection of the Massachu- 

 .setts Agricultural Cyollege. 



Medium-sized insects with black head and thorax; abdomen pale 

 ferruginous to yellowish; petiole black or ferruginous; legs, except 

 the coxa?, trochanters and tips of the claws ferruginous yellow; wings 

 hyaline, with a j^ellow ting-e in the females, rather fuliginous in the 

 males; pubescence pale golden to silver}^, mainl}' the latter. 



Feiinde. — Head rather broad (not as broad as the distance between 

 the outer margins of the tegula^), rather oval in outline when viewed 

 from above; chq:)eus slight]}' arched, with scattered punctures and 

 sparse pale golden to silver}^ pubescence, which extends upward on the 

 froiis to above the antennse; the anterior margin of the clypeus quite 

 evenly rounded across the front, with no teeth or irregularities, but 

 sometimes faintly tinged with ferruginous; the surface well provided 

 with long black hairs; frons sparselj^ punctured above the pubescence 

 and bearing numerous black hairs, shorter and smaller than those on 

 the clypeus; vertex minutely punctured, with a transverse crest 

 ])otween the posterior margins of the e3'es; the vertex and cheeks 

 faintly sericeous in certain lights; cheeks retreating- quite sharply, not 

 more than half the width of the eyes, sparsely, minutely punctured 

 above, more thickly punctured below, where there are numerous long, 

 ])lack hairs; inner margins of the eyes parallel; antenna^ black, the scape 

 more or less dull ferruginous beneath, minutely punctured; relative 

 lengths of the hlament segments jV, roi rs^ ts? mandibles two-toothed, 

 ferruginous except from the bases of the teeth to their tips, where 

 they are black; somewhat aciculated in front and beneath on the 

 ferruginous portion; with a few long, pale ferruginous hairs near the 

 base of the inner border, pointing toward the anterior tooth, and a 

 fringe of similarl}' colored hairs on the outer border pointing back- 

 ward. 



Tliorax. — Black, without pubescence; anterior face of the collar not 

 rising a ery sharply from the neck, somewhat rounded laterall3% its 

 surface with jfine scattered punctures and black hairs; the dorsal edge 

 rather Hattened near the middle line; the posterior face not closely 

 appressed against the mesonotum, nearly vertical; side of the collar 

 in front of the prothoracic lobe smooth, glistening; prothoracic lobe 

 black, glistening, moderatel}' punctured, with numerous black hairs 

 of medium length and a dense fringe of pale brown, short hairs on the 

 posterior margin; mesonotum quite closely, rather weakly punctured, 



