THE CLICK BEETLES. 755 



coarsely on sides and with a vague median impression on basal half; hind 

 angles slightly divergent. Elytra as in Uxiis. Length 13.5 mm. 

 Marshall County ; rare. June 26. 



1431 (4313). Melanotus depressus Melsh., Proc. Phil. Acad. Nat. Sci., II, 



1844, 151. 

 Elong^e, slender. Fuscous or dark reddish-brov?n, sparsely pubescent ; 

 antennae and legs paler. Third joint of antennae more than twice as long 

 as second, subequal to fourth. Thorax as long as vyide, sides straight al- 

 most to apex, then feebly rounded ; median line obvious from base to mid- 

 dle ; carinae of hind angles long, parallel and close to margin. Elytra dis- 

 tinctly narrowed from base to apes ; the striae feebly Impressed, finely punc- 

 tate. Abdomen coarsely and rather densely punctate. Length 9-10 mm. 



Throughout the State, frequent; much more so in the northern 

 counties. April 17-July 6. Beaten from vegetation. Close to 

 both trapczoidcus and pcrlinax. From the former it may be known 

 by the longer thorax and the more nearly equal third and fourth 

 joints of antenna;; from pertinax by the paler color, less rounded 

 sides, and finer punctures of thorax. 



1432 (4333). Melanotus pebtinax Say, Trans. Amer. Phil. Soc, YI, 1836, 



185 ; ibid. II, 623. 



Elongate, slender. Black or piceous, sparsely clothed with very fine 

 pubescence; antennae and legs much paler. Third joint of antennae twice 

 as long as second, slightly shorter than fourth. Thorax slightly wider at 

 middle than long, thence strongly rounded to apex ; disk rather coarsely 

 and very sparsely punctured, a faint median impression on basal half. Ely- 

 tra gradually attenuate from near middle to apex; striae with feebly im- 

 pressed punctures; intervals sparsely punctulate, transversely wrinkled. 

 Length 10-10.5 mm. 



Starke and Marshall counties ; scarce. May 9-June 26. 



1433 (4335). Melanotus tenax Say, Trans. Amer. Phil. Soc., VI, 1836, 



185 ; ibid. II, 623. 



Elongate, slender. Blackish-piceous ; legs and antennae paler. Third 

 joint of antennae one-half longer than second, a little shorter than fourth. 

 Thorax slightly longer than wide, sides almost straight to apical fourth, 

 thence rounded to apex ; disk rather finely and evenly, not closely punctate, 

 with a vague median impression on basal third. Elytra feebly narrowed 

 from the base; punctures of strije rather fine, feebly impressed. Length 

 7.5-8.5 mm. 



Steuben Count>'; rare. May lH-.]nly >^. Easily known by the 

 distinct and numerous punctures of elytral intervals. 



XXXrV. LurDxirs Esch. 1S20. (Cr.. "found in meadows.") 



Small or medium-sized rather slender click beetles, usually dull 

 sooty-brown in color and having the front margined, the mouth 

 anterior; first joint of tarsi scarcely longer than second; tarsal 

 claws simple. In some of the species the margin of the clypeus is 



