CRYPTOCEPHALUS. 49 



There will be no difficulty in distinguishing this species from C. congestus, Fabr.,near 

 which it ought to be placed. It differs in the want of the tooth, so distinct in C. con- 

 gestus, below the anterior angles of the thorax, and in the very acute- and long-toothed 

 prosternum ; the antennae, although long, do not extend beyond the elytra. The same 

 differences and others separate it from C. sulphuripennis, Melsh. 



24. Cryptocephalus irroratus. (Tab. III. fig. 9.) 



Cryptocephalus irroratus, Suffr. Monogr. vii. p. 32 1 . 



Kufous ; thorax finely rugose-punctate, the margins and two oblique basal spots flavous ; elytra very deeply 

 and remotely punctate, flavous, with three broad transverse rufous bands, the last consisting of two or 

 more spots. 



Length 2|-3 lines. 



Hob. Mexico 1 , Tehuantepec, Panistlahuca (Salle); Beitish Hondueas, R. Hondo, 

 R. Sarstoon (Blancaneaux) ; Guatemala, Tocoy, Vera Paz (Champion); Nicaeagua, 

 Granada (Salle) ; Panama (Boucard). 



A rather variable species in regard to colour, some specimens being almost dark 

 brown above, with more or less distinct yellow spots ; others, again, have the latter 

 colour predominating, with distinct rufous bands. The finely rugose thorax will help to 

 distinguish this species. The figure is from a Honduras specimen that does not 

 differ from the type in the Berlin Museum, which I have examined. 



25. Cryptocephalus trizonatus. (Tab. III. fig. 8.) 



Cryptocephalus trizonatus, Suffr. Monogr. xii. p. 372 \ 

 Cryptocephalus tricinctus, Suffr. Monogr. vii. p. 34 2 . 



Kufous; thorax impunctate, the margins flavous, the posterior one interrupted; elytra moderately deeply 

 punctured, flavous, with two transverse brown bands, the first near the base, the second below the middle. 

 Length l|-2 lines. 



Hob. Mexico, Oaxaca 1 2 , Campeche 2 (Salle) ; Guatemala, near the city (Champion) ; 

 Nicaeagua, Chontales (Belt, Janson). 



This does not seem to be a rare species in Guatemala, and is easily known by the 

 brown transverse band of the thorax. I have also examined the type in the Berlin 

 Museum ; the figure is from a Chontales specimen. 



26. Cryptocephalus guatemalensis. (Tab. III. fig. 10.) 



Pale rufous below ; thorax rugosely punctate, flavous, with two broad longitudinal rufous bands ; elytra deeply 

 and remotely punctured, flavous, a transverse basal band, another much shorter one behind the middle, 

 and two or three spots near the apex rufous. 



Length 2-2f lines. 



Head deeply but remotely punctured ; antennae in the male nearly extending the length of the body, black, 

 the first three joints rufous ; thorax proportionally long, its sides nearly straight, and narrowed ante- 

 riorly, surface rather coarsely and closely punctured, with a smoother central line ; scutellum flavous, 

 margined with rufous; elytra almost foveolate and very distantly punctate, the punctures near the base 

 very irregular and the interstices distinctly transversely costate, those towards the apex longitudinally 

 raised ; the basal brown band not extending to the lateral margin, its posterior margin convex, and at the 



biol. cent.-amee., Coleopt., Vol. VI. Pt. 1, December 1880. h 



