Lucanoid Coleoptera. 75 



The insect now noticed differs so perceptibly from all 

 other females of the species belonging to the genus, that 

 I have no hesitation in recording it as being distinct, 

 and I am much inclined to assume the probability of its 

 eventually proving to be the ? of 8. armatus ; this con- 

 jecture must not, however, be taken as a definite conclu- 

 sion. It assimilates with 8. armatus, <?, in having the 

 same convex and parallel formed elytra, together with 

 the vermiculate sculpture exhibited on their upper 

 surface, although somewhat closer and strongly defined, 

 this latter character may, however, be only sexual ; it 

 has, further, the same robust similarity in the appearance 

 of the legs, as well as in the strongly armed tibiee ; this 

 last chararcter, as previously stated, in respect to 8. 

 armatus, (^ , is certainly not to be met with in the females 

 of any other allied species. With regard to the coloration : 

 in the male it is characteristic as being " aeneus, brunneo- 

 tinctus ; " whilst in the female it is noted as " brunneus, 

 seneo-tinctus ; " such variety of character is often exhibited 

 in the females of other allied species. The legs of both 

 insects are unicolorous, whilst the tibia3 of nearly all the 

 other allied species have been described by the several 

 authors as being of a light reddish-brown. With refer- 

 ence to the villose texture which is exhibited so strongly 

 underneath, and, somewhat sparsely, on the upper surface 

 of 8. armatus, S , in the female insect there exists only 

 considerable marks of such pubescence underneath, and, 

 on the upper surface, traces only of this character are to 

 be found at the exterior base of the mandibles, on the 

 anterior margin of the prothorax, round the eyes, and 

 also in the space between the base of the elytra and pro- 

 thorax; in reference, however, to the last character 

 alluded to, the insect may not, I apprehend, be in its 

 normal condition. In conclusion, it may, I think, never- 

 theless be affirmed, that if the insect in question is not 

 sexually related to 8. armatus, S , it must be regarded 

 as the female of another species, the male of which is at 

 present unknown. 



Genus Cantharolethrus, Thomson, Ann. Soc. Ent. 

 Fr. 1862, p. 411. 



Sp. 1. G. Luxerii, $, Buquet, Ann, Soc. Ent. Fr. 

 1843, Bulletin, p. li. {Dorcus) , Colombia; G. Luxerii, <?, 

 Parry, Cat. pi. IX. fig. 6; C. Georgkis, S , Thomson, 

 loc. cit., Colombia. 



