THE CANADIAN ENTOMOLOGIST. 51 



largest ; mandibles black at base, red at tijjs, the outer tooth longest and 

 pointed ; there are two grooves running from the tips to the base of the 

 mandibles ; antennc-e brownish black, second joint small, globular, third 

 joint very slender at base ; tegulte shining, reddish, wings with dark veins, 

 second recurrent nervure weakly curved, entering third submarginal cell 

 about two-fifths of its length from its apex; wings set with fine short hairs; 

 legs black, with long, thick, gray hair, tarsi reddish, pubescence inclining 

 to fuscous, tips of claws very dark ; punctures of head and abdomen 

 medium and quite close, of the mesothorax sparse, the metathorax smooth; 

 abdomen with dorsal and ventral segments i-6 having apical appressed 

 hair bands, varying from gray to yellow; some short yellowish pubescence 

 on dorsal segments 3-7, and still more short pubescence on ventral seg- 

 ments. 



Habitat: La Paz, Bolivia, 14th November, 1898. 7 r^ specimens. 



One ^ placed in U. S. Nat. IMus., type No. 6S54. 



In one specimen the pubescence is quite gray, perhaps only faded. 



The drawings for the figures, excepting the copy of Spinola's figure, 

 were made by Mr. Otto Heidemann, of the Division of Entom., U. S. 

 Dept. of Agriculture. 



The authors desire to express their thanks to Prof Lawrence Bruner 

 for his kindness in loaning three specimens of this species from the 

 collection of the University of Nebraska. 



THYREOPUS L.VITPES, SM. 



$ and (^ new to Vancouver. Hitherto only the male of this 

 fossorial wasp had been known. The males recorded in the literature 

 came from Nova Scotia, Canada ; Montana, Colorado, Arizona, Oregon 

 and Washington. The female is related to T. tnedius, Fox, but differs in 

 size, sculpture and ornamentation, particularly • in the contrast between 

 the deep median sulcus on the metanotum and the regular subdued 

 sculpture adjoining. In medius the sulcus is not sharply outlined, nor is 

 there a strong contrast between it and the sculpture of the adjoming area 

 which is rough. The female of T. latipes is much like the male, and is 

 readily referred to its fully described sex. Prof. Harvey sent one female 

 taken 21st June, 1903, and one male 191I; June, 1903, to Dr. Henry 

 Skinner, who referred them to me for identification. 



Hknrv L- Viereck, New Haven, Conn. 



