THE CLICK BEETLES. 



751 



1416 (4308). Melanotus canadensis Caiid., Monog. Elat, III, 1860, 342. 

 Elongate, robust. Ficeons or dark chestnut brown, sparsely pubescent. 



Antennae slightly longer than head and thorax, third joint double the length 

 of second, one-half as long as fourth. Thorax slightly longer than broad, 

 apex distinctly narrower than base, sides rounded on apical half; disk 

 coarsely and densely punctate. Elytra feebly but distinctly tapering from 

 base to apex, stria* coarsely punctate. Length 15-15.5 mm. 



Posey County; rare. June 2. Resembles both fissilis and decu- 

 manus. Differs in the strongly concave clypeus and in having the 

 presternum much more coarsely and closely punctured than in 

 either. 



1417 (4343). Melanotus Sagittarius Lee, Trans. Amer. Phil. Soc, X, 



1S53, 480. 



Elongate, slender. Dull sooty or reddish-brown, sparsely clothed with 

 grayish hairs ; legs paler. Second and third joints of antennae together dis- 

 tinctly shorter than fourth. Thorax but slightly convex, a little longer 

 than wide, feebly narrowed from base to apex, sides slightly rounded on 

 apical third ; disk sparsely and rather coarsely punctate, with an impressed 

 line on basal half. Elytra with rows of rather coarse, feebly impressed 

 punctures; intervals sparsely and finely punetulate. Length 12-13 mm. 



Steuben and Kosciusko counties; rare. June 17-July 10. 

 Beaten from elm. 



1418 ( ). Melanotus diffictlis sp. nov. 



Elongate, slender, parallel. Pale reddish-brown, sparsely pubescent. 

 Clypeus short, coarsely punctate. Antennae slender, third joint twice the 

 length of second, one-half as long as fourth. Thorax slightly wider at base 

 than long, narrowed in front ; disk, viewed from above, with sides obviously 

 sloping downward toward front angles, coarsely, evenly, not closely punc- 

 tate; carinas of hind angles prominent, strongly diverging from their tips. 

 Elytra almost parallel, striae feebly impressed, finely punctate. Length 14- 

 15 mm. 



Knox and Posey counties; rare. July 2-July 8. Resembles 

 corticimis and Sagittarius in form. Elytral intervals more coarsely 

 punctate than in any of our species except tenax. 



M. opaeieollis, Lee, fuscous, third joint one-half longer than 

 second, was described from Rock Island, Illinois. 



1410 ( ). Melanotus piloses sp. nov. 



Elongate-oblong, slender. Pale reddish-brown, densely clothed with 

 long grayish prostrate hairs. Third joint of antennae in male two-thirds 

 longer than second, one-half the length of fourth ; iu female twice as long 

 as second, two-thirds the length of fourth. Thorax slightly longer than 

 wide, sides nearly straight, feebly rounded on apical half ; disk densely and 

 rather coarsely punctate, a faint median impressed line behind the middle. 

 Elytra with sides parallel from base to apical fourth, thence converging to 

 a rounded apex; punctures of striae large, feebly impressed; intervals 



[48—23402] 



