OISTUS.— DICEEPIDIUS. 293 



Candeze is abraded and discoloured. Fresh specimens have the upper and under 

 surfaces somewhat thickly clothed with yellowish-cinereous hair-like scales ; the elytra 

 have a few scattered bare spaces. In the male the fifth ventral segment is slightly 

 elongated, sinuated at the sides beyond the middle, and rounded at the tip. 



Group DICREPIDIINI. 



DICEEPIDIUS. 



Dicrepidius, Eschscholtz, in Thon's Archiv, ii. 1, p. 31 (1829); Candeze, Monogr. Elat. ii. 

 p. 143. 



An American genus containing seven described species, three of which are from the 

 island of Guadeloupe ; on the mainland it ranges from the United States of North 

 America to Uruguay, one of its members being very widely distributed. Two addi- 

 tional species are here described, one of them differing considerably from the others in 

 its structural characters. 



Posterior coxal plates broadly triangularly widened over the point of insertion of 

 the femora; antennze flabellate in the male. 

 Antennae very elongate in the male, much shorter in the female ; the rami ( <$ ) 

 subequal in length, stout. 



Apices of the elytra subtruncate ; colour ferruginous ramicornis. 



Apices of the elytra conjointly rounded ; colour black or pitchy-brown . . . corvinus. 

 Antennae very elongate in both sexes ; the rami ( £ ) increasing in length, 



slender, the outer ones exceedingly elongate politus. 



Posterior coxal plates feebly subangularly widened over the point of insertion of 



the femora ; antennae obliquely serrate in the male serraticornis. 



1. Dicrepidius ramicornis. 



Elater ramicornis, Beauv. Ins. Afr. et Am. p. 10, t. 7. figg. 3, 3 a ( <$ ) (excl. t. 9. fig. 7 *) (1805) \ 

 Dicrepidius ramicornis, Lee. Trans. Am. Phil. Soc. x. p. 461 2 ; Jacq. Duv. in Ramon de la Sagra's 



Hist. fis. polit. y nat. de Cuba, Ins. p. 31, t. 7. fig. 12 (tarsus) 3 ; Cand. Monogr. Elat. ii. 



p. 144, t. 2. figg. 8, 8 a, b (?) i ; Fleut. et Salle, Ann. Soc. Ent. Fr. 1889, p. 409 5 . 

 Dicrepidius pectinicornis, Eschsch. in Thon's Archiv, ii. 1, p. 31 6 . 

 Elater ceramboides, Sturm, Cat. p. 135 (1826) 7 . 



Hab. Noeth America, South Carolina \ Southern States 2 4 , Texas 4 . — Mexico 4 ; 

 Nicaragua, Chontales (E, M. Janson). — South America 24 to Brazil 467 ; Antilles 4 , 

 Cuba 2 3 , Guadeloupe 5 . 



I have only seen a single example of B. ramicornis from within our limits, a female 

 from* Chontales. Like Hemirhipus fascicularis, this species is very widely distributed 



* This figure is probably intended for the North- American D. palmatus, Cand. 



