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66 



EHYNCHOPHOEA. 









O 



the 







mooth behind 



the eyes, which are depressed ; the prothorax has a very deep, rugose, triangular 

 excavation at the base, preceded by two irregular rows of coarse punctures, limited 



outwards by a broad impunctate space 



Th 



1 





the middle in the male. The 



southern specimens 



i 



ufescent 



The length varies from 



t> 



2 



mm 

























. 



44. Cossonus punctifrons. (Tab. III. figg. 14 



nus punctifrons, Boh. in Schonh. Gen. Cure. iv. p. 1027 \ 



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? Cossonus mexicanus, Dej. Cat. 2 . 







Ildb. Mexico 2 , Orizaba 1 (Mus. Holm 





• 



i 



unique type of which is here figured) has the prothorax sculptured 



and excavate much as in (7. ft 



but the rostrum 



ly short, closely 





punctate, and abru 

 are more prominent 

 male is much broad 



ptly, transversely, subquadrangularly dilated at the tip, the 

 , the elytra! interstices are flat, and the ventral depression of 

 3r. The prominent eyes and the very short rostrum also sepa 













C. punctifrons from C. bifoveatus ; and the more depressed, broader form, the larger, 

 polished, faintly punctured spaces on the disc of the prothorax, and the shorter 

 abruptly dilated rostrum, distinguish it from C. evanescens. 





















45. Cossonus irregularis, sp. n. (Tab. III. figg. 15, 15 a, 6 .) 











Moderately elongate, rather convex, shining, black, the antenna (the club excepted) and tarsi obscure 

 ferruginous. Head foveate and finely punctate between the eyes, the globose basal portion smooth, the 



■i 



eyes not prominent ; rostrum short, gradual^ widening to the feebly, quadrangulariy dilated apical 

 portion, the two portions about equal in length, shining, sparsely, finely punctate, without trace of median 

 ridge or depression. Prothorax almost as long as broad, moderately rounded at the sides, obliquely 

 narrowing forwards, the subapical constriction almost obliterated, the base bisinuate ; very coarsely 

 punctate at the sides and down the middle, and with a polished, faintly punctate space on each side of 

 the elongate, triangular, median depression, the latter terminating posteriorly in a deep, rugose, inter- 

























ruptedly carinate area, the punctures preceding this foveiform and arranged in an irregular double or 

 treble series. Scutellum very small, transverse. Elytra moderately long, a little wider than the 

 prothorax, subparallel in their basal half ; coarsely punctate-striate, the interstices about as wide as the 

 strise, faintly uniseriate-punctate, the inner ones sinuous and somewhat raised towards the base. 

 Ventral segments 1 and 2 narrowly sulcate down the middle in the c? . 

 Length 4^, breadth 1| millim. ( c? .) 

































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Hab. Guatemala, San Geronimo in Baja Vera Paz (Champion). 











Two m 



Very like C. punctifi 



Boh. ( 



but narrower and 





more 









m much less widened at the apex and more finely punctured, the eyes 



. 



prominent, the 

 narrower. Less 



proth 









so deeply sinuate at the base, the ventral excavation 



gate than C. convexicollis (specimens of which 



with 



polished spaces on the prothorax), the punctuation of the upper surface not so coarse, 

 the prothorax shorter, the rostrum less dilated at the tip. The rostrum is much 



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than in C. foveatus and C. bif< 



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