630 Goleopterological Notices^ VI. 



more than tlu-ee times as lonji, about two and one-half times as long as wide, 

 polished, coarsely, deeply punctate nearly as \u grains. Under surface sparsely 

 hairy, the legs moderately stout, the basal joint of the hind tarsi l)ut slightly 

 longer than the last. Length 8.8 mm. ; width 2.4 mm. 



California (Marin Co.). 



The single male before me represents a species allied rather 

 closely to gratus, but differing in a number of well marked struc- 

 tural characters. The elytra are more elongate and more finely 

 pubescent than in gratus, and, although the large deep excava- 

 tion of the fifth segment is nearly similar, the copulatory spicule 

 differs decidedly, being much stouter, with a broad dorsal im- 

 pression extending only slightly be^'ond the middle of its length ; 

 in gratus it is more attenuate, with the dorsal channel fine, ex- 

 tending almost to the extreme tip and gradualh* disappearing. 



IMASTOREIWIJS u. gen. 



Bod}' subcylindrical. Head rather narrower than the prothorax, 

 feebly but abruptly constricted at base, the neck relatively long 

 and thick; tempora convergent and arcuate behind the eyes, long 

 but not at all prominent ; eves large, deeply emarginate, finel}' 

 granulated ; antenna? in the male nearlv as long as the body, the 

 joints longer than wide, serrate within, gradually longer, narrower 

 and less serrate from the sixth, the second joint minute, globular ; 

 maxillary palpi slender, moderate in size, joints eciual in thick- 

 ness, slender, obconical, the last cylindrical, obtusely pointed and 

 obliquely truncate at apex and but slightly longer than the third ; 

 labial palpi minute, apparently two-jointed. Epistomal suture 

 subobsolete. Prothorax constricted at apex, the basal margin 

 fine but defined throughout by an impressed line. Scutellum 

 moderate, broadly rounded behind. Elytra coarsely, confusedly 

 punctate, elongate. Abdomen with five free equal segments. 

 Metasternum long. Middle coxa? slightly separated. Legs mod- 

 erate in length, rather thick, clothed with long coarse sparse and 

 erect hairs, the tibial spurs short but slender, simple ; hind tarsi 

 slender, filiform, clothed with short stiff' blackish hairs, the third 

 joint not wider, triangular, longer than wide, the first contorted 

 at base and slightly longer than the fourth ; claws well developed, 

 thickened within toward base. 



The single species upon which I have been compelled to found 

 a distinct genus, differs markedly in type from an^- other known 



