SOFT-BODIED PLANT BEETLES. 089 



KEY TO SUBFAMILIES OF DASCYLI-ID-K. 



u. Front coxa' with largo and distinct trochantin ; covering of body usually 



firm. Subfamily I. DASCYLLINJE, p. GS9. 



<i<t. Front coxa 1 without trochantin ; covering of body usually soft and thin. 



Subfamily IT. HELODIN.E, p. 690. 



Subfamily I. DASCYLLINAE. 



In addition to the distinct trochantin, the mandibles are more 

 prominent than in the Ilelodimi'; tibire never bicarinate on outer 

 side and bearing smaller spurs. The following genera are perhaps 

 represented in the State: 



KEY TO INDIANA GENERA OF DASCYLLINJE. 



a. Hind coxa 1 narrowly separated ; lower face prolonged, concealing the 



mandibles and most of the labrum. 



l>. Antenna? slender, elongate, joints 2-3-^t very short, subequal, to- 



gether not longer than fifth. MACROPOGON. 



1>I>. Antenna? subserrate, joints 2 and 3 only short, together equal to 



fourth. I. EURYPOGOX. 



(in. Hind coxa 1 contiguous; lower face short, labrum and mandibles visible. 



<:. Claws pectinate; thorax acutely margined. ODONTONYX. 



cc. Claws simple; thorax not acutely margined; middle coxte not more 



widely separated than the front ones. ANCHYTARSUS. 



Macropogon nifipcs Horn, oblong, piceous, legs and antennae red- 

 dish-brown, length 5.5 mm., is recorded from Illinois. 



I. EITRYPOGON Motsch. 1859. (Or., "wide -f beard.") 



Head free, slightly deflexed and received in the thorax as far as 

 the eyes; antenna 1 slender, more than half the length of body, joints 

 4-11 slender, subequal ; prosternum prolonged, meeting the meso- 

 slcrnum, carinate on each side. Two species are known, one of 

 which occurs from Pennsylvania to Kansas, including Indiana. 



1309 (3974). EURYPOGON NIGER Melsh., Proc. Phil. Acad. Nat. Sci., II, 3S44. 



309. 



oblong, convex. Black, shining, sparsely pubescent. Thorax one-half 

 broader than long, slightly broader at base, sides straight, surface sparsely 

 and coarsely punctate. Elytra oblong, parallel, slightly wider than thorax. 

 with rows of coarse, closely placed punctures; intervals much narrower 

 than the stria?, each with a row of very fine punctures. Length 4-4.5 mm. 



Marshall, Vigo, Orange, Floyd and I'o-icy counties; rare. May 

 30 June 12:5. Beaten from leaves of hickory and oak. 



O(Jo)i1<>nij.r Iririllix derm., oblong-oval, piceous. thorax reddish- 

 yellow with two large black spots, length 8-9 mm., occurs in the 

 Middle States. 



