172 



FAMILY XT. STAPH YLINTD^E. 



912 (9744). Tbogophlceus agonus Casey. Ann. N. Y. Acad. Sci.. IV, 1S89 

 356. 



Elongate, slender. Piceous. feebly shining; abdomen black; legs and 

 antennae dark piceous brown. Head scarcely narrower than thorax, wider 

 than long, rather finely, deeply and densely punctate. Thorax one-half 

 wider than long, widest just before the middle, sides feebly curved, apex 

 much wider than base; disk densely and somewhat coarsely punctate and 

 with two distinct parallel impressions on basal half. Elytra together about 

 as long as wide, one-fourth wider and three-fourths longer than thorax, 

 rather coarsely, not closely punctated Abdomen minutely granulate, very 

 finely and sparsely punctate. Length 1,8-2 mm. 



Starke and Putnam counties ; scarce. March 20-May 19. Sifted 

 from damp vegetable debris. 



T. brachypterus Lee., wholly dull black in hue and one of the 

 smallest of the genus, occurs in numbers at Detroit, Michigan, and 

 probably inhabits northern Indiana. 



LXXY. Apocellus Erichs. 1840. (Gr\, "to withdraw + wild 



animal. ") 



Rather slender glabrous forms having the head equal to or wider 

 than the thorax; antenna? arising from beneath distinct elevated 

 frontal ridges ; abdomen very broad. 



913 (27S2). Apocellus sphjericollis Say. Trans. Amer. Phil. Soc, IV, 



1S34, 455 ; ibid. II. 570. 

 Elongate, slender, widest across the abdomen. Dark 

 reddish-brown, strongly shining; head and abdomeu 

 usually darker ; antennas fuscous, the first three joints 

 and legs paler. Head wider than thorax, its sides 

 oblique and rounded into a distinct neck; surface 

 smooth. Eyes very small ; antenna? longer than head 

 and thorax, the outer joints much enlarged, the second 

 one-half the length of third. Thorax subglobular. con- 

 vex ; its surface, as well as that of elytra, with a few 

 Fig. 168. v 9j. scattered minute punctures bearing short black erect 

 hairs. Elytra together wider than long, one-third wider 

 and slightly longer than thorax. Abdomen at base as wide as elytra, thence 

 gradually widening to the fourth and fifth segments ; surface smooth, highly 

 polished. Length 2.7-3 mm. (Fig. 168.) 



Southern half of State; frequent. April 8-May 13. Occurs 

 beneath stones. Jogs and damp decaying leaves. The thorax varies 

 much in color and size. 



Thinobius Kies. 1841. (Gr.. " shore + to live.") 



Very small linear depressed, pubescent species having the scutel- 

 lum visible ; the inner apical angles of elytra broadly and obliquely 



