









. 



COSSONUS. 



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o 



42. Cossonus bifoveatus, sp. n. (Tab. III. figg. 11, 11 a.) 



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Elongate, depressed above, shining, black, the base of the antennee and the tarsi in part ferruginous, the rest 



of the legs and the elytra sometimes piceous. Head longitudinally foveate, transversely grooved, and 

 punctate between the eyes, the globose basal portion almost smooth, the eyes large and not prominent ; 

 rostrum feebly curved, rather short, narrow at the base, broadly, abruptly, subquadrangularly dilated at 

 the apex, densely punctate; antennal club large, ovate. Prothorax broader than long, moderately 

 rounded at the sides, narrowed and feebly constricted in front, deeply bisinuate at the base ; with a 



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deep, rugose, subtriangular excavation at the base (in the centre of which is a short basal carina) 

 preceded by a small, shallow, oval, coarsely punctured depression, the two depressions more or less 



coarsely, closely punctate. Scutellum small. Elytra a little wider than the prothorax, subparallel, 

 flattened on the disc; moderately coarsely crenate-striate, the punctures closely placed, the interstices 



connected and limited exteriorly by a large, oblique, polished, faintly punctate space, the sides very 



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feebly convex, narrow, sinuate at the base, and minutely uniseriate-punctate. Beneath closely punctate ; 





ventral segment 1 depressed down the middle in the $ . 

 Length 4 T V-5i, breadth 11-2 millim. 



Hab. Guatemala, Cahabon in Alta Vera Paz [type] {Champion)', Nicaeagua, 

 Chon tales {Jans on) ; Panama, Volcan de Chiriqui (Champion). — Colombia, Santa 





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Marta [coll. Fry). 



Six specimens. A somewhat depressed form related to C. foveatus, with the 



rostrum narrow at the base, abruptly dilated at the apex, and densely punctate, the 

 polished spaces on the disc of the prothorax well-defined, the seriate punctures of the 





_. _ra closely packed. Less convex than C. scrobiculatostriatus and C. perfidiosus, 



the prothorax with more distinct polished spaces on the disc. 



: 





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43. COSSOIIUS foveatUS. (Tab. III. figg. 12, 12 a, 2; 13, var. lebasi, 6 .) 



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Cossonus foveatus, Boh. in Schonh. Gen. Cure. iv. p. 1026 



TT 



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[uvyvj ; British Honduras, Kio Sarstoon (Blancaneaux) ; Guatemala, Capetillo 

 Champion)', Nicaragua, Chontales (Belt); Costa Rica, Valle de Barn (Pittier), 



Hab. Mexico (Mus. Brit.), Orizaba l (Mas. Holm.), Toxpam (Salle), Cordova 



: 



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Monte Retondo {Underwood), La Paima, Tablazo, Surubres [Biolley), Irazu (Rogers). 



— 



Ecuador (coll. Fry.) 





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Smaller, the rostrum a little shorter ; the elytra (the suture and margins, and sometimes a space across 

 the middle, excepted) often rufescent or rufo-piceous, or with a reddish spot near the apex, sometimes 



wholly black. 



^~* / „ L — ~ « ~ 





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Cossonus lebasii, Boh. loc. cit. p. 1029 2 ; viii. 2, p. 272 



3 



Hab. Mexico, Tehuantepec (Iloge) ; Guatemala, Trece Aguas (Scluvarz & Barber), 





^uerto Barrios (C. C. Deam, in U.S. Nat. Mus.); Nicaragua, Grenada (Salle), Chon- 



X U 



tales (Belt). — Colombia 3 , Carthagena 2 ; Venezuela, Caracas 3 ; Trinidad. 







The lon<>- series of specimens from Nicaragua and Costa Rica connect the Mexican 



& 



C. foveatus with the Colombian C. lebasi (the types of both of which I have seen), 







and they cannot be maintained as distinct. The rostrum in this insect is comparatively 



1 



smooth, rather lon^, and abruptly, quadrangularly dilated at the tip, the antennas 



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biol. centr.-amer., Coleopt, Vol. IV. Pt. 1, December 1909. KK 







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