AMERICAN COLEOPTERA. 185 



Prothorax very convex, campanulate, feebl}' transversely impressed 

 near the base, without fovejB. P]lytra convex, wider behind, without 

 striae or punctures. Abdomen with dorsal segments convex, finely 

 margined, the first longer, with two short parallel striae not very 

 widely separated; intermediate ventral segments short. 



Differs from Bryaxis by the sculpture of the head, and the entire 

 absence of striae on the elytra, even the sutural. 



Fs. Belfragei.— Rufous, clothed with fine short sericeous pubescence. 

 Head broadly impressed in front; prothorax without fovese, elytra not punc- 

 tured, without striae; first dorsal segment with two short parallel lines. 

 Length 1 mm. 



Texas, two specimens, with the hind tibiae long and slishtlv curved • 

 the frontal impression is less deep at the middle than at the sides. 



S€AL,KN.1RTHRL'S n. g. (Pselaphid*). 



This genus is also closely allied to Bri/axis, and differs chiefly by 

 the dorsal abdominal segments being more convex, almost ventricose, 

 without iujpressions, and with the side margin extremely narrow 

 though distinct; the first segment is as long as the others united. 

 The antennse are 11-jointed; the second joint is equal to the first; 

 3 — 7 smaller, eighth, ninth and tenth gradually wider and transverse, 

 elevjnth large, oval, pointed at each end, inserted obliquely upon the 

 tenth, ( S ) not so large, oval, pointed at tip, obtusely rouuded at base 

 in the 9 . 



S. Hornii. — Red-brown, without distinct sculpture, finely pruinose with 

 extremely small pubescence. Head with transverse frontal impression, and 

 two small fovese behind; eyes well developed. Prothorax rounded, without 

 impressions, lateral fovese small, obsolete, not visible except from the sides. 

 Elytra convex, rounded on the sides, without fovese or striae, suture very finely 

 margined. Length 0.7 mm. 



Arizona, Dr. G. H. Horn. 



EUTYPIII.US n. g. (Pselaphidse). 

 Body elongate, linear, resembling Euplectus. Head with a wide 

 excavation each side on the declivity, with only a single ocellus repre- 

 senting the eyes ; vertex bifoveate, convex at the middle, front concave 

 arcuately impressed, declivous at tip. Antennae not as long as the 

 head and prothorax. rather stout, first and second joints thicker, 3 — 8 

 not longer than wide, ninth and tenth somewhat tran.-verse, eleventh 

 large, oval, annulated beyond the middle and obtusely pointed. Last 

 joint of maxillary palpi ovate, pointed. Prothorax not wider than 

 long, with a deep transverse impression near the base ending in larjre 

 lateral foveae, and crossed by an interrupted impressed dorsal groove. 



TRA.NS. AMER. ENT. SOC. VIII. (21) JUNE, 1880. 



