HETEROGOMPHUS. — D^EMONOPLUS. 327 



HETEROGOMPHUS. 



Heterogomphus, Bnrmeister, Handb. der Ent. v. p. 225 (1847); Lacordaire, Gen. Col. iii. p. 437. 



Twenty species of this ill-defined genus of Dynastidse are recorded, with two or three 

 exceptions all from South America, chiefly Brazil. 



1. Heterogomphus chevrolati. (Tab. XIX. figg. 7, 7 a, s ; 8, 8 a, 2 ; 9, 



9 a, 6 , var.) 



Heterogomphus Chevrolatii, Burm. Handb. der Ent. v. p. 233 1 . 



Hob. Mexico 1 , Mirador, Capulalpam (Salle), Jalapa (Hoge) ; Guatemala, Senahu in 

 Vera Paz (Champion), Coban (Conradt) ; Costa Rica, Rio Sucio (Rogers). — Colombia, 

 Santa Marta. 



Both mandibles and maxillae in this species are toothless, and prolonged into narrow 

 sharp-pointed blades ; and the apical rims of the four posterior tibige are minutely crenu- 

 lated, and not toothed. The following variety is known only in the form of undeveloped 

 males, and though agreeing with H. chevrolati in mouth-structure and the form of the 

 terminal rims of the posterior tibiae, it may prove when further material arrives to be a 

 distinct species : — 



Var. H. eurytus. g minor; brevior et latior, prsecipue elytris postice ampliatis. Bufo-castaneus, cornu 

 capitis brevissimum ; tborace valde transverse*, lateribns arcuatis dimidio anteriore et lateribus fulvo-hirtis 

 grosse strigosis, foveaeque latae anterioris margine postico obtuse transversim tuberculato ; elytris laevibns, 

 subtiliter punctulatis, stria suturali debili et striis nonnullis curtis post humeros punctatis. (Eigg. 9, 9 a.) 



Long. 38 millim. 



Hob. Costa Rica, Irazu 6000 to 7000 feet (Rogers). Two examples. 



We figure a typical well-developed male from Mirador, a female from Capulalpam, 

 and a male minor of the var. eurytus from Irazu. 



2. Heterogomphus hopei. 



Heterogomphus Hopei, Burm. Handb. der Ent. v. p. 231 \ 

 Hob. Mexico 1 . 



Unknown to me. 



DiEMONOPLUS. 



Dcemonoplus, Thomson, Archiv. Entom. ii. p. 68 (1858). 

 Heterogomphus, Gemminger & Harold, Cat. Col. iv. p. 1262 (1869). 



This genus is limited, at present, to the following species, which Thomson, in 

 describing it, believed to be from the Gaboon. Gemminger and Harold included it in 

 the genus Heterogomphus ; it has, however, well-marked peculiarities which render it 

 advisable to retain the genus formed for its reception. In the form and dentition of 

 its anterior tibise in both sexes it comes much nearer to Podisehnus, and the females 

 are not easy to be distinguished from the same sex of certain species of Golofa. 



