256 Memoirs on the Coleoptera 



width 1.6 mm. North Carolina (Asheville). A single example, 

 taken by the writer as in the case of virginica. 



ashevillensis n. subsp. 



Prothorax much less abbreviated and only two-thirds wider than long; 

 lustre shining; color deep black, the pronotum piceous-black, with 

 abrupt pale and broadly reflexed margins; elytra black, marked 

 with pale areas almost exactly as in virginica; legs pale, the pro- 

 sternum piceous and the head black; head four-fifths as wide as 

 the prothorax, with well developed prominent eyes, the surface 

 smooth, the anterior superciliary puncture very large; antennae 

 pale testaceous throughout, more than half as long as the body and 

 much more slender than in virginica; prothorax in general outline 

 and sculpture nearly similar, much less transverse and with the 

 fine rugulosity more visible; elytra fully a third longer than wide, 

 gradually very moderately inflated behind, less than twice as wide 

 as the prothorax, the stria tion nearly as in the two preceding; 

 two dorsal punctures adjoining as usual the third stria and at basal 

 third and apical fourth; epipleura very pale as in virginica and 

 ashevillensis. Length 3.9-4.2 mm.; width 1. 5-1. 6 mm. Mississippi 

 (Vicksburg) and Illinois. Five examples fluviatilis n. sp. 



10 — Form rather narrow and elongate, shining, the head rufo-piceous; 

 prothorax pale flavate throughout, the elytra black, each with a 

 large oblique flavate spot well separated from the base, lobularly 

 prolonged internally to well behind the middle, extending internally 

 to the first stria and, externally, separated as a rule from the pale 

 margin by about the width of an interval, rarely uniting with the 

 side margin for some distance; apical pale fascia broadened in 

 about inner half; under surface and legs, excepting the head, very 

 pale; head large, only very little narrower than th^, prothorax, with 

 large and very prominent eyes; surface smooth; antennae rather 

 more than half as long as the body, pale testaceous; prothorax four- 

 fifths as wide as the elytra, widest before the middle; sides rath 

 strongly rounded, broadly reflexed, becoming straight basally, the 

 angles minutely and acutely prominent; rugulae fine, faint and not 

 dense, the stria fine, more or less impressed; elytra two-fifths longer 

 than wide, gradually feebly inflated behind, a little less than twice 

 as wide as the prothorax, the striae impressed, subpunctate, finer 

 and smoother apically, the seventh obsolete as usual. Length 

 4.7-5.0 mm.; width 1.8-2. i mm. Texas (Brownsville), — Wickham. 

 Seven specimens serpentina n. sp. 



Form still more slender, smaller in size, shining; head black, the pro- 

 thorax and elytra pale flavate, the latter black in a small angulate 

 scutellar spot and a transverse fascia behind the middle, which is 

 not wider suturally than the inner part of the apical fascia and 

 connected with the scutellar spot by a fine vitta along the first 

 interval; lateral margins along the ends of the fascia pale, no other 

 dark markings visible; under surface as in the preceding; head 

 smaller than in the preceding, though with equally prominent eyes, 

 five-sixths as wide as the prothorax, smooth; antennae much more 

 than half as long as the body, fusco-testaceous, clearer basally; 



