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



(known from females only), but the latter has rugosely 

 punctate elytra, etc. S. erythrodiscus, therefore, has no 

 near known ally amongst the species here enumerated. 



15. Silis laciniosa, n. sp. (Plate IX, fig. 79, prothorax, (^.) 



(^. Silis eroides, Gorh., Biol. Centr.-Am., Coleopt. iii, 2, 

 p. 296 (part.) {nee p. 94). 



cj. Moderately elongate, flattened, opaque, thickly pubescent; 

 black, the anterior portion of the head, the mandibles, the sides of 

 the prothorax broadly, and the sides of the elytra to near the apex, 

 to a greater or less extent (leaving a large, anteriorly-narrowed, 

 common black apical patch, which extends broadly up the suture 

 to the base), ochreous. Eyes large (together with the head not so 

 wide as the prothorax) ; antennae long, dilated and strongly serrate 

 from the third joint, slightly tapering outwards, thickly set with 

 short projecting hairs. Prothorax strongly transverse, about as wide 

 as the basal portion of the elytra, uneven on the disc, broadly arcuate 

 in front, narrow and parallel-sided at the extreme base, the margins 

 reflexed, plicate, and with two overlapping lobes, the anterior one 

 long, backwardly-directed, the posterior one narrow, oblique, 

 arising from near the base, and clubbed at the tip. Elytra moder- 

 ately long, hard, flattened on the disc, gradually widened to the 

 apex, densely sculptured and obsoletely costate. Inner claw of 

 anterior tarsi, and outer claw of the other tarsi, feebly dilated at 

 the base. 



Length (excl. head) 4|— 5, breadth lf-2 mm. 



Hab. Panama, Bugaba. 



Described from three precisely similar males. Gorham 

 called attention to the deeply laciniate edges of the pro- 

 thorax, and the long hind lobe, of these ^ specimens from 

 Bugaba, and says that both sexes were captured there. 

 No female from that locality is now to be found in the 

 " Biologia " collection. S. laciniosa has obviously nothing 

 to do with the similarly coloured S. eroides from Guatemala, 

 the smaller eyes, sharply serrate antennae, and the broader, 

 very differently shaped prothorax readily distinguishing 

 the present species, at least in the male sex. 



16. Silis lycoides. (Plate IX, figs. 80, 81, prothorax, (^, ?.) 



$. Silis lycoides, Gorh., Biol. Centr.-Am., Coleopt. iii, 2, 



pp. 91, 290, pi. 5, fig. 21 (?, not c^) (part.). 

 (^. Silis jpraemorsa, Gorh., loc. cit. p. 93. 



