AMERICAN ENTOMOLOGY. 115 



Opatrum h'furcum Fabr., Supp. p. 40. 



Oj)atrum cornufum Panz. Faun. Amer. Bor. Prodr. pi. 1, fig. 

 5, a b, and fig. 6, a b. » 



Boletophagm coniufus Fabr. Syst. Eleuth. vol. p. 112. Scb'onh. 

 Syn. vol. i. p. 120. 



Eledona cornuta Latr. Hist. Nat. Crust, et Ins. vol. x. p. 312. 



Desc. Body brown : head with a few small tubercles ; and on 

 the anterior edge an elevated, double acute horn : thorax irregu- 

 larly granulated, with two prominent, porrect, incurved horns, 

 slightly dilated at tip, hairy beneath, and rather longer than the 

 head ; lateral edge denticulated : elytra with elevated, abbreviated 

 lines and tubercles ; at tip somewhat abruptly deflected. 



Female, destitute of the elevated double horn on the anterior 

 edge of the clypeus : thorax with two elevated tubercles, verti- 

 cal and truncated. 



Ohs. This species frequently occurs in various parts of the 

 United States, in fungi. It is very distinct from any other known 

 insect of the genus. The thoracic processes, as well as that of 

 the head, afibrd very good and striking characters. "We have 

 never been so successful as to obtain the above quoted work of 

 Panzer, and we therefore refer to it through other authors. 



The two upper figures of the plate represent the male in dif- 

 ferent positions. 



The lower right figures exhibit the female. The lines show 

 the natural length. 



BoLETOPHAGUS CORTICOLA. — Specific character. Head and 

 thorax unarmed ; elytra with elevated, abbreviated lines and 

 tubercles. 



Desc. Body brown : head slightly granulated ; anterior edge a 

 little reflected, and very slighly emarginate at tip : thorax granu- 

 lated, and somewhat canaliculate ; lateral edge denticulated ; 

 posterior angle an obtuse spire [spine] : elytra with regular series 

 of elevated, interrupted lines, and alternating with series of ele- 

 vated tubercles. 



Obs. For this species I am indebted to Dr. John F. Melshei- 

 mer, who sent me several specimens under the name which I 

 have adopted. He informs me that it was caught in Virginia, 

 in October, under the bark of the pine. 



