850 FAMILY XLII. CLERMVK. 



KEY TO INDIANA SPECIES OF CYMATODEKA. 



a. Last ventral segment in both sexes smaller than last dorsal and never 



deeply emargiuate in the males. 



&. Body black, thorax (except apex and base) and legs reddish-yellow; 

 last dorsal segment of male broadly emargiuate. 1622. BICOLOR. 

 b&. Uniform dark brown above. 



c. Last joint of antenna? longer than joints '.> and 10 (female), or 



7, 8, 9 and 10 (male) ; legs nnicolorous with elytra; last dorsal 



segment of male rounded at apex. BRUNNEA. 



cc. Last joint of antennae shorter than joints 9 and 10 in both sexes ; 



legs paler than elytra ; last dorsal segment of male feebly notched 



at apex. 1623. INORNATA. 



00. Last ventral segment broader than the last dorsal, the sides of the 



former reflexed, partly enclosing the latter; last ventral emarginate; 



elytra brownish, with from one to three pale undulating crossbars, 



sometimes in great part dull yellow. 1624. I-NDULATA. 



1622 (5136). CYMATODERA BICOLOR Say, Journ. Phil. Acad. Nat. Sci., V, 



1825, 174 ; ibid. II, 282. 



Elongate, snbcylindrical. Black, feebly shining ; thorax 

 (except apical and basal margins), legs (except knees and 

 apical fourth of femora), labrum, palpi and first two joints 

 of antenna? reddish-yellow; under surface piceous. Antenna? 

 feebly snbserrate, joint two slightly shorter than three, three 

 to ten similar, eleventh longer. Thorax bell-shaped, one- 

 ball' longer than wide, strongly constricted behind the mid- 

 dle, finely and sparsely punctate. Elytra at base twice as 

 wide as thorax, rarely with a more or less distinct undulate 

 crossbar, the punctures course, deep and close-set. Length 



rig. ool. 



X 31. 5.5-10 mm. (Fig. 331.) 



Starke, Marshall and Crawford counties; scarce. 

 May 28-June 18. Beaten from foliage of oak. 



C. bnuuna Melsh., dark brown, abdomen paler; elytra very 

 coarsely and densely punctured, length 7.5-1;" mm., ranges from 

 New Jersey and Ohio to Texas and Arizona'. 



1623 (5137). CYMATODERA INORNATA Say, Bost. Journ. Nat. Hist., I, 1835, 



161; ibid. II. 638. 



Elongate, subcylindrical, broader behind. Uniform dark brown, rather 

 thickly clothed with suberect yellowish hairs; antenna' and base of femora 

 reddish-brown, the former with last joint scarcely longer I ban the tenth. 

 Thorax cylindrical, more than twice as long as wide; sides feebly contracted 

 before and behind the middle ; disk finely and rather sparsely punctured 

 and with a small fovea at middle of base. Elytra at base one-half wider 

 than thorax, thence gradually but distinctly widening to apical fourth ; the 

 punctures rather coarse and deep. Length 7-8.fi mm. 



Lake County: rare, -hine '2S. Described from Posey County. 



