THE SHORT-WINGED SCAVENGER BEETLES. 



427 



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

 sparsely punctate. Elytra one-third longer and two-fifths wider than tho- 

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

 densely punctate. Length 3.8 mm. 



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 ; labrum with a large triangular notch ; antennas rather long 

 and slender, filiform ; elytral punctures sparse and in distinct rows. 



*817 (2534). Lathrobium longuisculum Grav., Mon. Col. Micr., 1806, 181. 



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

 middle of base ; antennae 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. 



Grouf G. (Linolathra.) 



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 dimidiattjm 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; antennae 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 the notch ; fifth ventral also with a slight notch. Length 3.8-4.5 mm. 



