AMERICAN COLEOPTERA. 271 



7. Last antennal joint ( % ) scimitar shaped, the tip acutely pointed ; eyes cleft 



to the. middle in the %, , nearly divided in the 9 • Color black, head 

 and prothorax dark rufous 9. bicolor. 



Last antennal joint ( % ) arcuate, the tip rounded. . . 8. 



Last antennal joint ( % ) not arcuate, but of the 9 type; last joint of maxil- 

 lary palpus slender, subparallel, about two and one-half times as long 

 as wide 10. tenuipalpa. 



8. Eyes ( % ) cleft for fully three-fourths their length, form rotundate. 



11. ineptn. 

 Eyes ( % ) cleft for barely two-thirds their length, form narrower. 



12. o\ iilis. 



1. C frontalis u. sp. — Not very broadly oval; castaneous; pubescence 

 sparse, erect, rather long, ochreous in color; punctuation everywhere fine and 

 sparse; very remote on the head and pronotal disk; arranged in fairly regular 

 series on the elytra. Terminal joint of maxillary palpi longer than wide, outer 

 edge oblique ; of labial palpi fully one-half longer than wide, transversely trun- 

 cate and feebly sinuate at apex. First joint of antennal club ( 9) nearly isos- 

 celes triangular and a little transverse. Eyes incised for two-thirds their length, 

 the anterior portion relatively wider than in any other species. Front about 

 one-third wider than the longest diameter of the eye, nearly flat, the epistomal 

 suture and supra-antenual lines transformed into a broad deep groove, poste- 

 riorly flexed at its extremities. Ventral sutures not at all arcuate at middle ; 

 fifth ventral segment only about one-half longer than the fourth. Length 1.7 

 mm. 



Described from a single example taken at Biscayne, Florida, by 

 Hubbard and Sehwarz. 



This species is the most aberrant one of the genus, approaching 

 Eutylistus in its more elongate form, sparser finer punctuation and 

 serial arrangement of elytral punctures. It is therefore placed at 

 the head of the genus. The type is apparently a female. 



2. i.\ scymuoides Lee. — Form of oculata; black throughout, antennal 

 club blackish or fuscous in the male, pale in the female. The pubescence is 

 short, cinereous, strongly inclined and nearly uniform in direction, instead of 

 confusedly bristling as in oculata; punctuation finer and denser than in oculata. 

 Terminal joint of maxillary palpus slender, rather more than twice as long as 

 wide, apex moderately oblique. Terminal joint of labial palpus broader but 

 evidently longer than wide. Seventh joint of antenna; ( % ) less strongly pro- 

 duced inwardly than in oculata, its width barely twice its length; eighth joint 

 scarcely sinuate on its inner margin ; ninth elongate-oval, not at all arcuate, 

 about three times as long as wide, the apex obtusely rounded. Length 1.8-2.3 

 mm. 



Hab. — Massachusetts (Tyngsboro, Blanchard) ; New York, New 

 Jersey, Manitoba, Dakota, Montana, Colorado (Leavenworth Yal 

 ley, Wickham) ; Nevada (Ulke collection). 



TKANS. AM. ENT. SOC. XXXI. JULY, 1905. 



