1897.] NATURAL SCIENCES OF PHILADELPHIA. 141 



semblance to G. phaleratus (rufoluteus Pack.), which was taken by- 

 Prof. Townsend at Las Cruces on the same day (Aug. 12), but the 

 latter has a black mesothorax, yellow collar, etc., and has more the 

 appearance of venustus. 



Passaloecus armeniacae n. sp. 



9 . — Length 5 mm., black; the scape in front, mandibles except 

 their rufescent ends, palpi, and anterior tibiae in front, pale chrome 

 yellow, and anterior tarsi orange-rufous; tubercles cream-color; 

 tegula? very pale testaceous with a cream-colored spot. Front 

 roughened from minute close punctures; sides of face, and clypeus 

 to some extent, with brilliant silvery hairs; labrum conspicuously 

 produced, ending in a blunt point at an angle of about 75°. Mandi- 

 bles bidentate at apex, the inner tooth much the shortest. Dorsulum 

 very closely punctured, with a pair of obtuse but very distinct 

 tubercles ; middle segment coarsely reticulate. Wings hyaline, 

 beautifully iridescent, nervures and stigma piceous. Abdomen 

 shining, slightly pruinose, minutely punctured. 



Hab. — Santa Fe, New Mexico, flying about the foliage of an apri- 

 cot tree, July 4 (Ckll., 3,305). Near to P. annularis, but dorsulum bi- 

 tuberculate, and its anterior furrows not foveolate ; labrum more 

 acute than in annularis. 



Diodontus leguminiferus n. sp. 



$ . — Length about 3? mm. ; black, with a large head and rather 

 slender abdomen ; face below antennae silvery-canescent ; mandibles 

 with a yellow streak and rufous tips, palpi pale grayish-brown ; ante- 

 rior knees, tibiae and first joint of tarsus, and middle tibiae at base 

 and apex, pale dull orange-rufous ; hind tibiae at base pale brownish- 

 orange, tarsi all brownish. Front microscopically lineolate passing 

 into tessellate, with scattered punctures ; antennae simple ; cypleus 

 bidentate-emarginate ; dorsulum very minutely roughened, and very 

 distinctly punctured, the punctures very dense in front ; middle 

 segment coarsely roughened, irregularly cancellate; tegulae black; 

 wings hyaline, nervures and stigma piceous; abdomen shining, dis- 

 tinctly but very minutely and not very densely punctured; its out- 

 line from the side suggests a ripe pea-pod, hence the specific name. 

 The suture between the first and second segments is quite depressed. 

 Hab. — Santa Fe, New Mexico, in Mr. Morrison's garden, July 10 

 (Ckll., 3,447). Comes near D. flavitarsis in regard to the simple 

 antennae, but is much smaller and more slender, and the legs are 

 differently colored. 



