COLEOPTERA. 141 



EKCHOMIJS Mots. 



E. flavidllS n. sp. — Form as in ventriculus. Color throughout evenly 

 flavo-testaceous, with a slightly reddish tinge ; head dark piceous-brown ; 

 antennae pale toward base, dark piceous-brown toward tip, apical joint 

 slightly paler toward tip. Head much broader than long, strongly detlexed ; 

 front feebly convex, feebly strigose and nearly vertical, nearly semicircu- 

 larly rounded froin the front margin around the sides and base, and in con- 

 tact with a similarly rounded emargination in the pronotum ; antennae but 

 very slightly longer than the width of head, first joint more than twice as 

 long as wide, cylindrical, second thinner, conoidal, base narrow, two- thirds 

 as long as the first, third shorter than the second, very thin, conical, fourth 

 very small, wider than long, first four joints glabrous, remaining joints in- 

 creasing in width, slightly compressed, roughly and finely asperate, densely 

 and very finely pubescent, and coarsely and sparsely setose, fifth but very 

 slightly wider than long, tenth nearly one-half wider than long, eleventh 

 distinctly longer than wide, obtusely rounded at tip, ovoidal. Prothorax 

 slightly more than twice as wide as long ; apex from above transverse and 

 straight, three-fifths as long as the base which is also transverse and straight ; 

 sides strongly and exactly evenly rounded throughout, being almost an exact 

 arc of a circle, the tangents drawn to it at the base are not parallel but very 

 feebly divergent anteriorly ; basal angles from above right and not at all 

 rounded, viewed laterally narrowly rounded and slightly acute; disk very 

 strongly convex, sti"ongly margined at the sides, polished, very minutely 

 evenly and rather sparsely punctate. Elytra at base as wide as the con- 

 tiguous pronotum ; sides continuous in direction with the pronotal tangents 

 at the basal angles, or very feebly convergent posteriorly, slightly arcuate ; 

 together broadly roundly and extremely feebly emargijiate behind ; disk 

 about one-third longer than the pronotum and nearly one-half wider than 

 long, very convex, shining, finely and roughly undulated or rugulose, also 

 finely and evenly punctate ; punctures larger than those of the pronotum, 

 sometimes in broken longitudinal aggregations. Abdominal segments de- 

 creasing very rapidly in width, first narrower than the contiguous elytra ; 

 border narrow and inconspicuous ; surface shining, strongly convex, covered 

 very sparsely with excessively short fine and recumbent cinereous liairs, 

 finely and regularly imbricated, imbrications longer than wide, acute, finely 

 reticulated ; each segment beneath bears a short stout intensely black seta 

 near the apex and the lateral edge; the sixth segment having two longer 

 ones on each side. Legs short and stout ; posterior tibiae having two stout 

 spines on the inner side, and terminated by several short irregular spines, 

 and a few close stout spinules, not darker ; tarsi cylindrical, nearly glabrous, 

 first joint nearly as long as the next three together. Length (contracted) 

 2.0 mm. 



Jenkintown, near Philadelphia, 4. 



The description is taken from the female, and the middle lobes of 

 the sixth ventral segment are terminated by four stout closely placed 

 arcuate spinules ; the dorsal teeth are as in ventriculus except that 

 Cont. Fart II. 6 January, 1885. 



