78 Mr. G. C. Champion's Revision of the Mexican 



sutural and outer margins of elytra narrowly, coxae, trochanters, 

 and femora in part or entirely, and base of tibiae, flavous or 

 testaceous. $. 



(J. Eighth ventral segment long, oval, carinate down the middle, 

 rounded, cleft and upturned at the tip ; ninth segment narrow, two 

 pairs of stout spines projecting from the internal sac. (Fig. 30.) 



Length (excl. head) 7|-9J, breadth 3-4| mm. {^ $.) 



Hab. Mexico (Truqui), Ventanas in Durango {Forrer), 

 Durango City, Iguala and Chilpancingo in Guerrero (Hoge), 

 Jalisco {coll. Fry : (^ $), Guanajuato {Salle : types, (^ $). 



E-edescribed from the types (a pair from Guanajuato), 

 a similar pair from Jalisco in Fry's collection, and a female 

 from Durango City ; the other specimens ($) referred to it 

 by Gorham, one of which was figured by him under the 

 name Telephorus photurinus and quoted under Discodon 

 difficile (p. 288), belong elsewhere. The var. a is repre- 

 sented by six examples (from Ventanas and Chilpan- 

 cingo), and the var. ^ by a single female from Iguala. A 

 comparatively short form, with the prothorax broad and 

 very similarly shaped in the two sexes, the elytra more or 

 less explanate at the sides. The var. a may have to be 

 separated when more males are available for examination. 

 The uncleft cJ tarsal claws separate this and the next two 

 species from Discodon. 



8. Polemius photinoides. 



Discodon photinoides, Gorh., Biol. Centr.-Am., Coleopt. iii, 



2, p. 84 {nee p. 288). 

 Telephorus photinoides, Gorh., loc. cit. pi. 5, fig. 19 (9). 



Rather narrow ((J), broader (9), moderately shining, clothed with 

 fine brownish pubescence ; nigro-fuscous or black, the anterior 

 portion of the head, the base of the mandibles, the prothorax (a 

 triangular patch on the disc excepted), and the sutural and outer 

 margins of the elytra flavous, and the humeri and knees often 

 testaceous. Eyes large in cj. Antennae rather stout, serrate, 

 tapering outwards, long in cj, shorter in ?. Prothorax strongly 

 transverse ; subquadrate and with a deep, narrow, oblique notch 

 on each side towards the base in (^, broader and with the more 

 rounded sides deeply sinuate at about the basal third in $. Elytra 

 moderately elongate, as wide as or wider than the prothorax at the 

 base, gradually explanate at the sides from a little below the 

 shoulder. Inner claw of anterior tarsi broadly, and outer claw of 



