372 PROCEEDINGS OF THE ACADEMY OF [1895. 



very sparsely hirsute, the latter almost nude; wings subhyaline 

 about twice the length of thorax. Inner eye-margins almost 

 parallel; thorax and scutellum coriaceous, indistinctly punctured, the 

 middle segment distinctly though not very strongly so; pulvilli 

 indistinct. Length 12 mm. 



$ . — -Similar to 9 but slenderer and differing in the following 

 points as to coloration: clypeus except narrow anterior margin, 

 black; front rarely spotted before the anterior ocellus; the first five 

 or six joints of flagellum yellowish beneath; yellow of the orbits less 

 prominent; no central spots on dorsulum and no line on middle seg- 

 ment; a narrow yellow spot on the mesopleurse; the coxse and 

 trochanters are more or less yellow, the tarsi entirely so; all the 

 ventral segments are fasciated, and the last dorsal has an apical 

 spot. Apical antennal joints not curved; dorsulum and scutellum 

 strongly and closely punctured, the middle segment a little more 

 strongly; pulvilli large and distinct; medial femora smooth beneath; 

 first joint of medial tarsi not at all curved; second ventral segment 

 with two approximate tubercles near posterior margin, seventh 

 smooth; eighth with a discal spine. Length 10-12 mm. 



Montana; Nevada; Southern California (O. B. Johnson and D. 



W. Coquillett). Resembles very much the 9 of Bembex monodonta. 



16. Monedula pulla Hdl. 



Monedala pulla Handlirsch, 1. c, p. 149, J. 



Southern California (O. B. Johnson and D. W. Coquillett). 

 Whereas usitata resembles the 9 of Bembex monodonta, this 

 species is peculiar for its striking superficial resemblance to the $ 

 of that species. 



The S of pulla is smaller than the 9 (length 10 mm.); apical 

 antennal joints, not at all curved; fore legs with a long tarsal comb 

 as in the 9 ; pulvilli large and prominent; medial femora smooth 

 beneath; first joint of medial tarsi not curved; second ventral seg- 

 ment smooth; not tuberculate; seventh and eighth segments ? 



This species is remarkable for the narrow front, and long tarsal 

 comb of $ . The type of this species has, according to Handlirsch, 

 the clypeus black basally; in the five specimens before me none pre- 

 sents this characteristic, the clypeus being entirely yellow. One speci- 

 men is labelled Georgia, probably erroneously. 1 



1 M. mamillata Hdl., which I have not seen, has been inadvertently 

 omitted from this paper. It seems to be near cmarginata. 



