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EHYNCHOPHOEA. 



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scutellum small, subtriangular, flat ; elytra elongate-sub triangular, subtruncate at the base, much wider 

 than the prothorax, their apices strongly declivous and produced; prosternum broadly and very deepl\ T 

 sulcate from the apex to the narrowly separated anterior coxae; ventral segments 3 and 4 extremely 

 short, together very little more than half the length of 5 ; legs short, the femora and tibige stout, the 

 tibiae almost straight, strongly unguiculate at the outer apical angle, and toothed at the inner angle • 

 tarsi with a few hairs beneath, slender, the third joint slightly excavate above for the reception of the 

 base of the fourth, scarcely wider than the second, the claws divergent ; body elongate, opaque, setose 

 the depressions of the surface lutose. 



Type, 0. tenuilarsis. 



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This genus is easily separable from its allies by the very slender, short tarsi ; the 

 7-jointed funiculus ; the large, ovate, closely pubescent antennal club, with a com- 

 paratively short basal joint; the basally depressed rostrum; the very deep, almost 



* 



glabrous prosternal sulcus ; the extremel) 7 short third and fourth ventral segments ; 

 and the opaque, alutaceous, finely setose surface of the body. The type bears a 

 certain resemblance to the European Chcerorrhinus squalidus, Fairm. 



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1. Choerorrhynchus tenuitarsis, sp. n. (Tab. I. figg. 3, 3 a 



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Elongate, rather narrow, somewhat flattened above, opaque, alutaceous, nigro-piceous, the antennae obscure 

 ferruginous ; sparsely clothed with fine, erect,. pallid, blunt setae, those on the elytra uniseriately arranged 

 along each interstice, the depressions of the surface filled with a brownish incrustation. Head and 

 rostrum densely, finely punctate. Prothorax about as long as broad, slightly rounded at the sides, the 

 subtubulate anterior portion narrower ; closely punctate. Elytra long, obliquely narrowing from the 

 base, blunt at the apex as seen from above ; seriate-punctate, the interstices feebly convex, flatter on 

 the disc. Beneath sparsely punctate. 



Length 3|, breadth 1^ millim. 



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Hab. Panama, Volcan de Chiriqui 3000 feet {Champion). 

 One specimen, sex not ascertained. 



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Group TRYPETINA. 



Trypetides, Lacordaire; Trypetini, Leconte and Horn. 



Of the three genera referred to the Trypetina by Lacordaire, one, Nanus, Schonh. 

 Homaloxenus, WolL), is represented within our limits. This group is placed by 



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him near the " Antliarhinides," and by Leconte and Horn near their " Derelomini. 

 It seems to me that its proper position ought to be near the Cossonina — Wollaston, in 

 fact, included Homaloxenus* with some doubt amongst them, at the same time calling 

 attention to the distinctly annulated antennal club, the strongly bilobed tarsi, the 

 dentate femora f , the feebly unguiculate tibiae, &c, as not being in accordance with 

 the usual modifications of the Cossonid tvpe. 



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Hoplorrhinu8 9 Chevr. [provisionally placed under a separate group, Hoplorrhiuina, 

 in a preceding volume of this series, Coleopt. IV. pt. 4, pp. 277-279 (1903)], the 



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* His description is based on the male only. 



f Some true Cossonids from New Zealand have strongly dentate femora. 











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