330 LAMELLICOKNIA. 



1. Strategus jugurtha. 



Strategus Jugurtha, Burm. Handb. der Ent. v. p. 131 l . 



Hob. Nicaeagua, Chontales (Belt, Janson). — Colombia 1 . 



Distinguished by its acuminated clypeus in both sexes, and the three long and slender 

 horns of the male. 



2. Strategus cessus. 



Strategus cessus, Leconte, Proc. Acad. Phil. 1866,, p. 382 x ; Horn, Trans. Am. Ent. Soc. v. p. 146 



(1875) 2 . 



Hob. North America, Arizona 1 2 . — Mexico, Northern Sonora (Morrison). 



3. Strategus julianus. (Tab. XIX. figg. 14, 14 a, 15, 15 a, 6 .) 



Strategus Julianus, Burm. Handb. der Ent. v. p. 133 1 ; Horn, Trans. Am. Ent. Soc. v. p. 144 



(1875) 2 . 



Hab. North America, Georgia 2 . — Mexico 1 2 , Hacienda de Bleados in San Luis 

 Potosi (Dr. Palmer), Orizaba, Oaxaca, Playa Vicente, Chiapas (Salle), Jalapa, Mexico 

 city (Edge), Temax in North Yucatan (Gaumer) ; British Honduras (Blancaneaux) ; 

 Guatemala (Salle), near the city (Salvin), Champerico, Escuintla, Capetillo, Zapote, 

 Panzos, Coban (Champion)', Honduras, Ruatan I. (Gaumer); Nicaragua, Chontales 

 (Belt); Costa Rica (Van Patten), Cache, Volcan de Irazu 6000 to 7000 feet (Rogers); 

 Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion). — South America, Colombia 

 (coll. Bates). 



The very numerous examples examined include the variations in the anterior thoracic 

 horn of the male (notched or simple), and in the smooth or rugose thoracic cavities, 

 mentioned by Burmeister, together with others not recorded by that author in the 

 general form and colour, and in the number of teeth on the apical rim of the posterior 

 tibia?. Some examples are remarkably broad, and in consequence differ from the 

 majority in the greater width between the posterior horns of the thorax, and some are 

 wholly pitchy-black in colour. The dentition of the apex of the posterior tibia? usually 

 consists of three teeth, the inner one much smaller than the others, and (apparently by 

 aberration) sometimes wanting or resolved into two smaller teeth. All examples of the 

 male agree in the more or less broadly triangular emargination of the front edge of 

 the clypeus ; and this seems to be the sole character which distinguishes the species 

 from the South-American S. aloeus (Linn.), of which Linnaeus in his original description 

 (Mus. Lud. Ulr. p. 7) says, " Caput depressum, obtusissimum, angulis reflexis," and 

 Burmeister, " deren vorderes Kopfende stumpf, beim mannchen mehr abgestutzt, 

 scharfkantig." The female of S. julianus does not appear to differ from that of 

 S. aloeus, the clypeus being much narrower than in the male, and obtusely truncated 

 at the apex. 



