.s8 NOirrn a:\ikrican 



and excessively feebly punctiilate ; siitural striae fine, straight, approxi- 

 tnate i single discal stria line and distinct, exteriorly arcuate, nearer the 

 suture than the lateral edge, abruptly terminating very near the apices, 

 where it is feebly sigmoid. Abdominal segments very convex, polished ; 

 border moderate, flat, rapidly becoming narrower posteriorly; dorsal carinae 

 of first segment very fine, rather long, approximate, strongly divergent and 

 arcuate ; surface finely punctulate. Length 1.3 mm. 



Willets Point, Long Island, 1. 



Tlif above description is taken from a male; the terminal ventral 

 segment is broadly, ovally, and feebly impressed ; the apex of the last 

 dorsal is very feebly sinuate at the immediate apex. The species 

 should probably stand just after atlantica Brend. in the catalogue. 



ARTIliTIIUS Lee. 



,4. gracilior n. sp. — Form rather slender. Head and elytra dark 

 rufous, pronotum slightly darker, abdomen piceous, legs paler, ferruginous 

 antennae very dark rufous ; pubescence long, rather coarse, semi-erect, 

 rather sparse, more dense on the abdomen, where there is an admixture of 

 longer hairs ; surface very highly polished throughout. Head ratlier large, 

 as wide as long ; eyes large, very coarsely granulated ; interocular surface 

 raised above them, nearly flat, impunctate, having two deep, nude, puncti- 

 form foveae on a line through the posterior third of the eyes, and mutually 

 three times as distant as either from the eye ; antennal tuberculations rather 

 large, not prominent, surface between them very feebly depressed, behind 

 each the surface is very feebly and obliquely impressed ; epistoma rapidly 

 declivous before the antennae and feebly convex, broadly rounded anteriorly, 

 and having at each anterior angle a small dentiform tubercle ; labrum small, 

 transversely oval ; antennae about as long as the head and prothorax together, 

 rather slt;nder, basal joint moderate, emarginate at tip, bicarinate on its 

 upper surface, second slightly elongate, cylindrical, third and fourth much 

 shorter, e(jual, sub-globular, fifth abruptly and irregularly dilated, slightly 

 shorter than the sixth, sixth slender, equal in length to the seventh, the 

 latter slightly more robust, eighth as long as wide, dentieularly produced 

 outwardly at apex, ninth slightly longer than wide, no thicker than the 

 seventh, tenth as long as wide, slightly thicker than the ninth, eleventh 

 slender, finely acuminate, nearly one-half thicker than the tenth, and 

 slightly shorter than the three preceding joints together; all the outer 

 joints are transversely truncate at base, the latter being surrounded by a 

 narrow raised black bead. Prothorax scarcely as wide as the head, as wide 

 as long, widest at one-third the length from the apex ; sides abruptly and 

 very strongly convergent to the apex, which is scarcely one-half as long as 

 the greatest width, and gradually convergent and moderately arcuate to the 

 basal angles, just before which they are feebly sinuate ; base one-third longer 

 than the apex; disk very strongly convex, impunctate and devoid of all 

 modification, except a narrow transverse canaliculation at one-fifth the length 

 from the base, which is very distinct, and terminating at each side in a small, 



