THE SHORT-WIXOED SCAVENGER BEETLES. 427 



long, wider than head, sides nearly straight, disk rather coarsely and 

 sparsely punctate. Elytra one-third longer and t\vo-fit'tlis wider than tho- 

 rax, finely, rather closely punctate, the rows uneven. Abdomen finely and 

 densely punctate. Length 3.8 rnm. 



Described by Casey from Indiana and Mississippi. 



GROUP F. (LATHROTAXIS.) 



Rather large, parallel and subdepressed species, having the up- 

 per surface except the abdomen coarsely and sparsely punctate ; 

 head usually narrower than elytra, its sides broadly rounded into 

 base ; labruin with a large triangular notch ; antennae rather long 

 and slender, filiform ; elytra! punctures sparse and in distinct rows. 



*S17 (2534). LATHROBIUM LONGCISCULUM Grav., Mon. Col. Micr., ISOfi, 181. 

 Elongate, slender. Head and thorax black ; elytra dull red, dusky at 

 middle of base: aiiteniue and legs reddish-brown; abdomen piceous. Head 

 coarsely and very sparsely punctate. Thorax oblong, slightly longer than 

 wide, a little wider than head, sides straight ; disk with a wide smooth 

 median space bounded each side by an irregular row of close-set punctures, 

 elsewhere coarsely, very sparsely and irregularly punctate. Elytra one- 

 fourth wider and slightly longer than thorax, each with about six rows of 

 rather coarse, feebly impressed punctures. Abdomen slightly narrower than 

 elytra, finely and rather closely punctate. Sixth ventral of male with a 

 shallow, broadly rounded notch at apex. Length 6.5-7.5 mm. 



Throughout the State ; frequent. February 14 November 28. 

 Hibernates beneath bark and logs in upland woods. 



GROUP G. (LlNOLATHRA.) 



Small, slender, subparallel polished species having the head nar- 

 rower than elytra ; labrum short, broadly emarginate ; thorax small, 

 oblong, the angles distinct; elytra wider and never shorter than 

 thorax, their punctures in rows. One of the four species has been 

 taken in the State. 



818 (2543). LATHROBIUM DIMIDIATUM Say, Trans. Amer. Phil. Soc., IV, 



1834, 455: ibid. II. 570. 



Elongate, very slender. Head and abdomen black ; thorax and elytra 

 dull red. the latter often blackish at base; untennse reddish-brown, legs 

 paler. Head coarsely and very sparsely punctate. Thorax slightly nar- 

 rower than head, a little longer than wide, sides straight; disk with a sin- 

 gle row of seven to nine rather coarse punctures each side of the median 

 smooth space; punctures on sides very fine and sparse. Elytra a fourth 

 wider and slightly longer than thorax, each with two or three rows of 

 rather coarse, distant, shallow punctures. Abdomen slightly narrower than 

 elytra, finely but not. very closely punctate. Sixth ventral of male with a 

 shallow rounded notch at apex and with a deep, triangular impression be- 

 fore (ho notch: fifth ventral also with a slight notch. Length 3.8-4.5 mm. 



