398 PROCEEDINGS OF THE NATIONAL MUSEUM vol.94 



space with several (three in type) coarse, Wack serrations only at 

 summit of declivity, with apical three-fourths flat, shining, moder- 

 ately, rather roughly punctured; second interspace obliterated in mid- 

 dle half of declivity but widened into an angular area near apex ; third 

 interspace elevated, with 8-10 coarse, stout, blunt, black serrations 

 (coarser and much blunter than in nitidus) ; fifth, seventh, and ninth 

 interspaces each with a few smaller serrations; hairs slightly longer 

 than on disk. 



Female.— ^'miil^Y to male but averaging somewhat larger; frons 

 wider between eyes, frontal rectangle 0.62 as long as wide; convex, 

 densely granulate-punctate, median carina variably, often feebly de- 

 veloped on lower half; pronotum with lateral calli less developed; 

 elytral declivity similar to that of nitidus but with the serrations much 

 smaller; with numerous scales on first to fourth interspaces. 



Type locality. — Ciricito, Panama Canal Zone. 



Host. — Unknown. 



Tyj^e material.— Holoiy^e^ allotype, and 14 paratypes, U. S. N. M. 

 No. 56576. 



The type series was taken March 4, 1930, by R. E. Blackwelder, as 

 the specimens alighted upon the trunk of an unknown felled tree at 

 Ciricito, Canal Zone. 



CARPHOBIUS, new genus 



Body subcylindrical, moderately stout, ornamented with hairs; 

 frons convex above, flattened below; eye weakly emarginate, finely 

 faceted; antennal club connate, with impressed, setigerous sutures, 

 partly septate, f unicle 6-segmented ; pronotum wider than long, with 

 posterior outline bisinuate as in Phloeosinus Chapuis, fore coxae 

 moderately widely separated, third tarsal joint bilobed; elytra with 

 anterior margins arcuate, serrate, striae scarcely impressed, inter- 

 spaces with moderate hairs; declivity moderately sulcate, first inter- 

 space somewhat elevated, third interspace more strongly elevated, 

 granulate-dentate in male. 



Genotype, Carphohius arisonicus, new species. 



CARPHOBIUS ARIZONICUS, new species 



Plate 17, Figures 41-45 



Female. — Piceous-brown ; 1.79 mm. long, 2.23 times as long as wide. 



Frons (fig. 43) convex above, somewhat flattened, feebly subconcave 

 below, finely, moderately closely, subgranulately punctured, with fine 

 hairs of moderate length. Eye with inner outline broadly, shallowly 

 emarginate; facets fine. Antenna (fig. 45) with scape club-shaped, 



