SUBFAMILY XIII.- CALANDRIN^E. 



553 



KEY TO EASTERN SPECIES OF GROUP B. 



a. Body densely clothed with a natural glabrous coating; lateral raised 



vittse of thorax without a branch near base. 863. ^QUALIS. 



ao. Body without natural coating except on alternate intervals of elytra; 



lateral vittse with a branch extending toward base. 

 b. Third elytral interval only strongly elevated on basal half; color 

 black; beak suddenly dilated and obliquely truncate at tip. 



8G4. LATINASUS. 



bb. Elytral intervals 1, 3, 5 and 7 elevated throughout their length; 

 upper surface red and gray, the median vitta of thorax and su- 

 tural vitta of elytra only black; beak not as above. 



865. STRIATIPENNIS. 



863 ( ). SPHENOPHORUS ^EQUALIS Gyll., Schon., 1838, 941. 



Elongate-oval, very robust. 



Black, entirely covered with a natural 

 glabrous coating, which varies 

 in color from a pale clay-yellow 

 to reddish-brown and leaden 

 gray, the darker specimens al- 

 ways pale beneath. Beak three- 

 fourths as long as thorax, <rtrong- 

 ly compressed, broader at tip 

 and base, finely and sparsely 

 punctate. Thorax oval, longer 

 than wide.sides subparallel from 

 base to apical third, then round- 

 ed to the feebly constricted 

 apex; disc with three broad, 

 nearly entire, feebly elevated 

 vittse, these minutely and Very 

 sparsely punctate, their inter- 

 vals more coarsely and more 

 closely punctate. Elytra broad- 

 est slightly behind the base, 

 then gradually narrowed to 

 apex; striae fine, rather coarse- 

 ly not closely punctate; alter- 

 nate intervals wider, often 

 darker, with fine scattered 

 punctures; narrower intervals, 

 each with a single row of some- 

 what coarser punctures. Male with metasternum, first and second ventral 

 segments concave and villous at middle, and inner edge of femora and 

 tibiae strongly fimbriate with yellowish hairs. Length 11 17 mm. (Fig. 

 120.) 



Occurs probably throughout Indiana, but taken only in Lake. 

 Porter, Marshall and Vigo counties; Feb. fi July 28. Abundant 

 in the drift along the shore of Lake Michigan. Those taken in 

 winter were found in Vigo Co., near ponds, in little burrows in 



Fig. 1 20. Beetle, dorsal and side views; larva 

 with injured corn plant. (After Forbes.) 



