586 PHTTOPHAGA. 



the lateral margin with an elongate fovea between them, and the antennae are more 

 robust. In a third specimen from Capulalpam (a female) the elytral spots are larger, 

 and the extreme apices are also black; and the first three joints of the antenna? are 

 fulvous. Whether all these forms must be referred to varieties only, or represent other 

 species, I am not able to say, as long series of specimens from the different localities are 

 required to settle this point. We figure an example from Capetillo. 



8. Malacorhinus basalis. 



Fulvous, the antenna? and legs black ; thorax very minutely punctured ; elytra closely and finely punctured, 

 each with a transverse spot at the base and another below the middle, bluish-black. 



c? . The first joint of the antennae strongly dilated at the apex, fulvous. 



Var. The posterior elytral spot wanting or only indicated ; femora sometimes fulvous. 

 Length 1| line. 



Hab. Mexico, Santecomapan, Toxpam (Salle) ; Guatemala, Zapote, San Geronimo, 



El Jicaro, Tamahu, Panima (Champion) ; Panama, Bugaba, Volcan de Chiriqui, Caldera 



(Champion). 



M. basalis differs from M. biplagiatus in being smaller, and in having the underside 

 fulvous instead of black ; the elytral spots are narrowly transverse and have a bluish 

 gloss, and the surface is more distinctly though finely punctured. The male has the 

 joints of the antennae shorter and more robust, the first joint club-shaped and distinctly 

 thickened ; and the head furnished with a deep fovea, the clypeus being raised and 

 somewhat curved upwards. The female has sometimes two obsolete depressions on the 

 thorax, the thorax itself being more transversely shaped than in the male. There is no 

 elytral fovea visible in any of the specimens before me ; and nearly all those from 

 Chiriqui are devoid of the posterior elytral spot. 



9. Malacorhuius sex-puiictatus. (Tab. xxxili. fig. 21, <s .) 



Testaceous, the antenna? and tibise black, above reddish-fulvous ; thorax impunctate ; elytra closely and finely 

 punctured, with a spot at the shoulder, another larger one near the scutellum, and a sublateral spot before 

 the middle, black. 



<J . Elytra with an oblong depression near the lateral margin, the latter slightly thickened and produced in 

 front of the depression. 



Length 2-2£ lines. 



Hab. Panama, Volcan de Chiriqui (Champion). 



Of the same colour and size as M. biplagiatus ; but differs in the elytra being more 

 closely and distinctly punctured, and in the position and shape of the spots (these being 

 placed in a triangle at the base) ; and also in the position and sculpture of the fovea in 

 the male, it being placed before (not at) the middle, and also being shallower and 

 without tubercles. In the only male specimen before me there is a small extra black 

 spot placed at the middle of each elytron near the suture. The antennae are slender, 

 and the third joint is distinctly shorter than the fourth. 



