754 



FAMILY XXXVII. ELATERTDiE. 



from Ohio and Maryland. Easily recognized "by the peculiar sculp- 

 ture of thorax. 



1427 ( ). Melanotus divarcarinus sp. nov. 



Elongate, slender. Dull reddish or fuscous-brown, sparsely pubescent. 

 Clypeus feebly concave, coarsely and densely punctate. Antennae of male 

 reaching middle third of elytra, third joint more than twice as long as. sec- 

 ond, nearly equal in length to fourth ; of female, reaching base of thorax, 

 third joint slightly longer than fourth. Thorax as wide at base as long, 

 sides feebly curved and distinctly converging to apex, disk coarsely, evenly 

 and rather closely punctate and with a distinct median impression on basal 

 half; hind angles feebly inflexed rather than divergent at tips. Elytra 

 gradually tapering from base to apex, the striae with rather coarse, well 

 impressed, close-set punctures; intervals very sparsely and finely punctate. 

 Length 12-14.5 mm. 



Vermillion, Knox and Posey counties; frequent. April 23— 

 July 6. Resembles communis in general appearance, but darker, 

 and with a single strongly diverging carina on each hind angle. 



142S (4325). Melanotus parampunctatus Melsh., Proc. Phil. Acad. Nat. 

 Sci., II, 1844. 151. 



Elongate, rather slender. Chestnut brown, sparsely pubescent ; antenna? 

 and legs reddish-brown. Clypeus subconvex, coarsely and densely punc- 

 tate. Antennae slightly longer than thorax, third joint twice the length of 

 second, nearly as long as fourth. Thorax subquadrate, distinctly narrowed 

 toward apex, sides nearly straight from base to middle, feebly curved to 

 apex; disk punctured as mentioned in key and with a faint median im- 

 pressed line on basal two-thirds. Elytra gradually tapering from base to 

 apex, the striae with feebly impressed punctures ; intervals very sparsely, 

 minutely and roughly punctate. Length 10.5-11.5 mm. 



Throughout the State; frequent. May 2-July 4. 



1429 ( — — ). Melanotus lixus sp. nov. 



Elongate, robust. Dark reddish-brown, sparsely pubescent. Clypeus 

 broadly rounded, coarsely punctured. Third joint of antennae twice or more 

 longer than second, as long as fourth. Thorax convex, distinctly longer 

 than wide; sides sinuate near base of hind angles, thence nearly straight 

 to apical fourth, where they are feebly rounded into apex; disk sparsely 

 and rather finely punctate at middle, densely and coarsely on sides. Ely- 

 tra feebly tapering from the base, striae rather coarsely and closely punc- 

 tate ; intervals very finely and sparsely punctate. Length 15 mm. 



Posey County; rare. July 6. 



1430 ( ). Melanotus debilis sp. nov. 



Elongate, robust. Dark smoky or fuscous brown, sparsely pubescent; 

 antennae and legs paler. Clypeus less broadly rounded, coarsely punctate. 

 Third joint of antennae three-fourths longer than second, slightly shorter 

 than fourth. Thorax a little longer than broad, sides feebly rounded; disk 

 finely and sparsely punctate at middle, more densely and somewhat more 



