1893.] NATURAL SCIENCES OF PHILADELPHIA. 543 



tweea base and middle ; tibia? and tarsi strongly spinose ; abdomen 

 very sparsely punctured, dorsal segments 2-5 with a transverse, 

 sinuous row of punctures between middle and apex ; pygidial area 

 less than twice longer than it is broad at base. Black ; mandibles 

 medially, regular and tarsi obscurely, reddish-testaceous; head, thorax 

 above and first segment of abdomen with pale pubescence, that on 

 legs and thorax beneath, black; wings fuscous, paler basally; mar- 

 ginal cell obliquely subtruncate. Length 11-14 mm. 



S . — Produced portion of anterior margin of clypeus widely and 

 angularly emarginate; front strongly convex and deeply impressed 

 medially; joints 5-8 of flagellum a little rounded-out beneath, the 

 first joint rather strongly bent or curved and about one-quarter 

 longer than the second; dorsulum finely punctured, very closely so an- 

 teriorly ; scutellum sculptured like postertor portion of dorsulum, im- 

 pressed medially; metathorax above rather finely rugoso-granulated, 

 the metapleune and posterior face coarsely and closely punctured; 

 abdomen beneath rather closely punctured; apical margins of wings 

 broadly hyaline. Length 11-13 mm. 

 Nevada; Montana; Washington. 



4. — Astatus nubecuhis Cress. 

 Asia I a mi bet ii la Cr., Proc. Eut. Soc. Phila. IV, p. 466. $ . 

 Astata nigropilosa Cr.. Proc. Ent. Section, Acad. Nat. Sciences. Phila.. 1881, 



p. IV, 9 (=var.). 

 Astatus nubeculus Kohl, 1. c. p. 448. 



9 . — Produced portion of anterior margin of clypeus subtruncate; 

 front with tolerably strong and separated punctures; vertex with 

 sparse, strong punctures; first joint of flagellum about one-quarter, 

 or more, longer than the second; dorsulum anteriorly closely punc- 

 tured, on the remainder polished, almost impunctate; scutellum 

 similar to the posterior portion of dorsulum, impressed medially; 

 metathorax above coarsely reticulated, the metapleura?, except lower 

 basal portion rugose; tibiae and tarsi strongly spinose; abdomen 

 scarcely punctured ; pygidial area about twice as long as it is broad 

 at base. Black; mandibles medially, tegular and tarsi, reddish- 

 testaceous; abdominal segments; 1, 2 and 3 red; head, thorax and 

 legs clothed with black pubescence; apical third of wings fuscous; 

 marginal cell broadly truncate. Length 9 mm. 



$ . — Produced portion of anterior margin of clypeus as in the 9 ; 

 first joint of flagellum nearly one-third longer than the second; dor- 

 sulum finely and evenly punctured throughout, the scutellum 



