THE CARRION BEETLES. 275 



lis, but smaller. The epipleura fold of elytra is wholly orange-red, the sides 

 of thorax less curved, and the middle and hind tibiae are curved in both 

 sexes. Length 1C- 18 mm. 



Lake and Vigo counties ; rare. June 4- July 15. 



535 (1698). NECBOPHORUS MARGINATUS Fab., Syst. Eleut. I. 1801, 334. 

 Moderately elongate. Black, shining ; auteimal club, epipleural fold 



and two broad dentate cross-bands on elytra, orange yellow ; the sub-basal 

 band usually entire, rarely divided at suture; the subapical often reach- 

 ing the -apical margin, the two connected on side margin. Thorax distinctly 

 narrower behind the middle, the disk nearly smooth. Hind tibia? distinctly 

 curved. Length 20-27 min. 



Throughout the State; frequent. April 23-July 28. Occurs 

 especially about dead snakes. 



536 (1697). NECROPHORUS ORBICOLLIS Say, Journ. Phil. Acad. Nat. Sci., V, 



1825, 177; ibid. II, 284. 



Elongate, moderately robust. Black, shining; elytra with a sub-basal 

 cross-bar and subapical spot orange-red; epipleural fold black; antenna' 

 piceous, the club orange-red, first joint black. Middle and hind tibi;e in 

 both sexes gradually broader to tip and straight. Length 20-25 mm. 



Throughout the State; frequent. April 6-August 20. One 

 just emerged from pupal stage was taken from a little pit beneath 

 a log on April 17. 



537 (1701). NECROPHORUS PUSTULATES Ilersch., Illig. Mag., VI. 271. 



Moderately robust. Black or piceous, shining; antenna 1 club, except 

 the first joint, and two spots on each elytron, orange-red; one of the elytral 

 spots on the side at usual position of sub-basal baud, the other, sometimes 

 double, subapical. Thorax transversely oval, very little narrowed behind. 

 Elytra coarsely punctured, each with two faint costre. Length 17 mm. 



Posey County; rare. June 18. The color is variable, some- 

 times wholly black ; the epipleural fold usually black, often red or 

 partly so. 



538 (1703). NECROPHORUS TOMENTOSUS Weber. Obs. Ent.. I. 1801, 47. 

 Moderately elongate. Black, shining ; elytra with two cross-bars and 



epipleural fold orange-red; the cross-bars resembling those of marginatus, 

 but narrower. Thorax broader than long, very little narrowed behind, the 

 disk clothed with golden yellow hairs. Middle and hind tibiae straight. 

 Length 15-20 mm. 



Throughout the State ; frequent. June 20-October 18. 

 % 

 II. SILPHA Linn. 1758. (Gr.. "a beetle.") 



Strongly depressed beetles of medium or large size, usually 

 rounded in form and with a wide, thin margin to thorax and elytra. 



