Baring 3^9 



male. Length (cf ) 4.4 mm.; width 1.82 mm. Nebraska (Holt Co.). 

 One example. 



Differs from Imirostris in its much smaller size and narrower 

 form, more evenly elongate-oval elytra and paler coloration; the 

 elytral striae are much less coarse than in Icevirostris, where also the 

 strial punctures are far coarser and more conspicuous. 



Pycnogeraeus n. gen. 

 The body in this genus is short, thick and strongly convex, with 

 loose coarse punctuation and vestiture as a rule, the strong thoracic 

 tubulation deeply constricted. The beak is thick in the more typi- 

 cal forms, the antennal club nearly as in the preceding, and the 

 male has two very moderate erect ante-coxal spines, the surface 

 between them flat, but anteriorly there is a deep transverse fossa. 

 The basal thoracic lobe is well marked, the scutellum oblong, 

 emarginate behind, the elytral striae coarse and deep, the intervals 

 moderate, with coarse, confused sculpture and clothed with small 

 slender dark squamules, with large oval or broad linear pale scales 

 somewhat evenly intermingled, the linear scales of striatirostris 

 much denser than the oval scales of modestus and tortuosus. Besides 

 these three species, the genus will possibly comprise the Central 

 American arciiatirostris of Champion, although in my single female 

 representative from Villa Nueva, Guatemala (3000 ft. elev.), the 

 more strongly arcuate beak is very much more slender, relatively 

 longer and with the point of antennal insertion much more basal; 

 the sparsely scattered pale scales in this species are narrowly linear. 

 The type of the genus is Centrinus modestus Boh. 



Geraeopsis n. gen. 

 The type of this genus is Gerceiis tumidirostris Chmp., from 

 Sinanja, on the Atlantic slope of Guatemala, a specimen of which I 

 am glad to have from the author. In general appearance tumidi- 

 rostris, is remarkably isolated among the other allies of GercBus, 

 its elongate-rhomboidal outline and convex, polished and feebly 

 sculptured integuments, with a few scattered whitish scales on the 

 elytra, becoming dense beneath, and narrow, rectilinearly conical 

 prothorax, being notably exceptional external features. The beak 

 is long, slender, arcuate, tumid toward base, with the antennae 



