THE CLICK BEETLES. ~4V) 



o. Punctures on basal half of thorax minute, very dense and some- 

 what rugose; those on apical half much coarser; length 13- 

 14 min . 142(5. UKADATUS. 



NO. Punctures on basal and apical halves of thorax not varying greatly 



in density and coarseness. 



p. Cariiue of hind angles very distinct, and strongly diverging from 

 apex to their bases, the space between carina and side at base 

 with three or four rows of coarse punctures; length 12- 

 14.5 mm. 1427. DIVARCARINUS. 



pp. Carinae of hind angles less distinct and much less divergent, not 

 over two rows of punctures between their bases and sides of 

 thorax. 

 <I. Larger and more robust species ; length 11 or more mm. 



r. Thorax very sparsely punctured, finely on the middle of 

 disk, a little more coarsely on the sides; length 11-12 mm. 



1428. PARAMPUNCTATl S. 



//. Thorax coarsely and closely punctured on sides. 



is. Clypeus broadly but not deeply concave; color dark red- 

 dish-brown ; length 15 mm. 1421). Lixrs. 

 ss. Clypeus subcouvex ; color fuscous or smoky brown; length 

 13.5 nun. 1430. DEBILIS. 

 (/(I. Smaller and much more slender species; length not over 



10.5 mm. 



/. Punctures of elytral intervals very fine and indistinct. 

 it. Reddish or sooty brown; clypeus snbconvex ; thorax as 

 long as or slightly longer than wide, very finely and 

 sparsely punctate at middle, more closely on sides. 



1431. DEPRESSUS. 



uu. Piceous-black ; clypeus subconcave ; thorax slightly wider 



than long, its punctures coarser. 1432. PERTINAX. 



1t. Punctures of elytral intervals almost as coarse as those of 



stria? ; form very slender ; color piceous ; length 7.5-8.5 mm. 



1433. TENAX. 



1413 (4307). MELANOTUS DECUMANUS Erichs., Germ. Zeitschr., Ill, 1842, 



104. 



Elongate, robust. Piceous or dark reddish-brown, sparsely clothed with 

 grayish hairs. Clypeus feebly concave, coarsely and densely punctate. An- 

 tennre slightly longer than head and thorax, third joint twice the length 

 of second, three-fifths as long as fourth. Thorax slightly longer than wide, 

 sides sinuate near base of hind angles, distinctly curved in front of middle; 

 disk very coarsely and densely punctate on sides, more sparsely at center 

 and with a smooth, more or less impressed line on basal two-thirds. Ely- 

 tral strife feebly impressed, rather finely punctate; intervals finely and 

 sparsely punctate. Length 14-18 mm. 



Throughout the State; frequent. April 8-July 14. Beaten 

 from pine and beech foliage; also beneath bark. The sides of tho- 

 rax are more broadly rounded in females than in males. 



