270 FAHILT VI. — HTDEOPHILID^. 



XIX. Cryptopleuedm I\Iu1s. 1844. (Gr., "hidden + breast.") 



This genus differs from Cercyon by having the prosternum ele- 

 vated before the front coxae to form a rather large, five-sided area 

 widely separating the coxs ; mesosternum with a similar area widely 

 separating the middle coxa3; metasternal area broad, extending 

 across the body ; sides of thorax reflexed and angulate near middle, 

 the angle not visible from above. Two species are known, both of 

 which occur in Indiana. 



KEY TO INDIANA SPECIES OF CEYPTOPIEDEUM. 



(/. Elyti-al intervals distinctly punctate throughout their entire extent; 



striiB not conspicuously coarsely punctate. 529. minutum. 



00.. Elytral intervals feebly punctate on basal half only; strife coarsely 



punctured at base. 530. amebicanum. 



529 (1690). Ceyptopleueijm minutum Fab., Syst. Ent, 1798, 68. 

 Rather broadly oval, more narrowed behind than in front, convex. 



Piceous black, feebly shining; elytra with an indefinite pale space at tip; 

 antennse and palpi piceous. Thorax narrowed from base to apes, sides 

 feebly curved, surface rather coarsely punctate. Elytra rather deeply stri- 

 ate ; inteiwals slightly convex, closely and distinctly punctulate and sparse- 

 ly pubescent. Length 1.5-2 mm. 



Kosciusko, I\Iarion and Vigo counties; scarce; April 12-Octo- 

 ber 9. Taken in decaying fungi and beneath dead turtles and 

 chickens. In one specimen at hand the pale reddish space at apex 

 of elytra extends over three-fourths of the surface. 



530 (9339). CETPTOPLEt'ErM amebicanum Horn, Trans. Amer. Ent Soc, 



XVII, 1890, 311. 

 Resembles minutum in form and color; autennte and palpi pale red- 

 dish-yellow. Thorax more coarsely punctate than the head. Elytra deeply 

 striate, strise coarsely and closely punctate near base, more finely on apical 

 half ; intervals sparsely and finely punctate on basal half only, lletastemal 

 area more coarsely and sparsely punctured than in minutum. Length 1.7- 

 2 mm. 



Jlarion and Crawford counties; scarce. March 23-April 23. 

 Known heretofore only from Ohio. 



XX. PH.a;NONOTUM Sharp. 18S2. (Gr., "to show -f back.") 



Rather small black species having the antennae 9-jointed, the 

 club joints loosely united; prosternum short, not carinate between 

 the coxffi. 



531 (1685). Ph^nonotuh esteiatum Say, Bost. Journ. Nat. Hist., I, 171; 



ibid. II, 016. 

 Rather broadly oval, strongly convex. Piceous black, shining; antennse 

 dull yellow, the club fuscous. Thorax very finely punctate. Elytra more 



