THE S^TIOET-WIXOED SiAVEXGETl BEETLES. 405 



thorax, coarsely and densely pnnctate and with an almost complete spiral 

 lieliind the middle. Alidomen at base sli.!;hrly narrower than elytra, yery 

 'cehly tiipering to apex, finely and rather sjiarsely pnnctate. the transverse 

 carina' with three cnsps. Length ;;..V4 mm. 



ilarion. Vigo. Lawrence. Clark, Floyd and Posey counties: 

 scarce. IMareh l-Xovenaber 28. Taken by sifting, beneath mul- 

 lein, etc. Resembles fcmoratus in form, size and color, but the 

 sculpture is much more regular, the abdomen les.s tapering and the 

 median impression of thorax wholly different. 



Division C. 



Here a part or all of the punctures are united or confluent, but 

 the channels -which they form are never arranged in a complete 

 spiral or whorl on any part of the elytra. "The channels or punc- 

 tures may be comparatively distant or very chisely compacted, and 

 the interspaces correspondingly wide or acute, convex or flat, highly 

 polished or minutely granulose and feebly shining." The thorax 

 is always marked with a distinct impression or canaliculation on 

 some part of the middle of the disk. The following species have 

 been taken or probably occur in the State : 



KEY TO IXDI.\?;a SPECITS OF DIVISION C. 



(I. Larger, more than 2 mm. iu length ; elytral suture not more than one- 

 third longer than thorax : transverse carinte of abdomen with three 

 cusps. 

 b. Form exti'emely slender, nearly c.vlindrieal : elytra much shorter than 

 thorax, head much wider than elytra : length : ;-.>.." mm. 



7SM. STRAXGL'LATl S. 



hh. Form much more robust : elytra at most but little sh'jrter than thorax, 

 usually longer. 

 (1. Larger. .^.7-4.s mm.: head wide and robust, as broad as or broader 

 than elytra: males (except in iicijlcrtiis) with the side margins 

 of the luiiiressed area of fifth ventral segment in the form of 

 ridges which terminate behind in acute teeth. 

 r. Legs black : length :!.7^ mm. ixtrusts. 



rr. Legs piceous or paler. 



f. Head not twice as wide as long, deeply excavate between the 

 eyes; legs jiale pieeous-brown : length 4-4. s mm. 



TS4. EKTTHROPl s. 



//. Head twice as wide as long, feebly excavate between the eyes: 



leu's picetnis; length .'^..^-4 mm. xkgt.ectls. 



ihl. Smaller, not over .S.r. mm.: males with maririus of inipresse.l area 



of fifth ventral without ridu'cs or teeth. 



(7. El.vtral sutnre etiual in length to ihorax. the latter wider lie'.ore 



the middle: form slender: len^'tb "J..", nun. si UTir.rs. 



