THE CLICK BEETLES. 



755 



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

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



Marshall County ; rare. June 26. 



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



1844, 151. 



Elongate, slender. Fuscous or dark reddish-brown, sparsely pubescent ; 

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

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

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

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

 tinctly narrowed from base to apex ; the strias 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 trapezoidens and pertinax. From the former it may be known 



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



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



sides, and finer punctures of thorax. 



1432 (4333). Melanotus pertinax Say, Trans. Ainer. 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 antennas 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 ; strias 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 antennas paler. Third 

 joint of antennas 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 strias rather fine, feebly impressed. Length 

 7.5-8.5 mm. 



Steuben County; rare. May 16-July 8. Easily known by the 

 distinct and numerous punctures of elytral intervals. 



XXXIV. Limonius Esch. 1829. (Or., "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 



