





126 



KHYNCHOPHOKA. 



pro thorax, arcuate, the basal portion broad, sinuate at the sides, narrowly sulcate and coarsely, irregu- 

 larly seriate-punctate above, the apical portion much smoother, unarmed beneath, ( $ ) less curved, the 

 apical portion more slender and almost impunctate, the peduncle of the submentum in this sex with a 

 prominent tooth at the base. Antennae stout, pruinose. Prothorax a little broader than long, narrow 

 and somewhat abruptly constricted at the apex, the sides strongly rounded anteriorly and subparallel at 

 the base, the latter feebly bisinuate, coarsely, closely punctate, the punctures here and there confluent, 

 the disc shallowly bifoveate before the middle.. Scutellum triangular, small, depressed. Elytra rapidly 

 narrowing from the rounded humeri, transversely depressed before and beyond the middle; finely punctate- 

 striate, the interstices with an irregular series of coarse, scattered, shallow punctures. Pygidium broad, 

 subcorneal, sparsely punctate, tumid down the middle posteriorly, and closely set with erect, bristly, 

 blackish hairs at the tip. Beneath sparsely, coarsely punctate ; first ventral segment slightly hollowed 

 in the tf . Legs stout ; femora sparsely fringed with rather long, and the tibiae densely set with short, 

 blackish hairs in both sexes, the intermediate and posterior tibiae sinuate within. 

 Length 17-22, breadth 6^-84 millim. ( tf $ .) 



Hab. Costa Rica (Van Patten), Rio Sucio, Cache, Irazu (Rogers), Tuis 500 metres 

 {Pittier), Estrella de Cartago 1500 metres (Biolley), Azahar de Cartago (Underwood) ; 

 Panama, Volcan de Chiriqui 2500-4000 feet (Champion). 



Twenty-seven specimens, thirteen of which are from Chiriqui. A large, robust, 

 oblong form, with the greyish vestiture on the elytra clustered into two transverse 

 fasciae, which are separated and followed by a more sparsely clothed (i. e. with smaller 

 spots) blacker space. The elytra are uneven, as in B. plicatus. 



10. Khodobaenus dentifer, sp. n. (Tab. VI. figg. 10, 10 a, $ .) 



2 . Elongate, subfusiform, robust, opaque, black, the depressions and the umbilicate punctures of the upper 

 and under surfaces filled with a dense pale brown incrustation, the elytra with a more sparsely spotted 

 blackish median fascia. Head coarsely punctate ; rostrum arcuate, shorter than the prothorax, stout, 

 becoming much thicker towards the base, coarsely punctate to about the middle and almost smooth thence 

 to the tip, the short, broad basal portion sinuate at the sides and sulcate above, the peduncle of the 

 submentum armed towards the apex with a stout, curved tooth. Prothorax a little longer than broad, 

 obliquely narrowing anteriorly, abruptly constricted and tubulate in front, very feebly sinuate at the 

 base ; the surface uneven, transversely depressed on each side near the base, and somewhat closely and 

 asymmetrically set with coarse, rounded, umbilicate punctures. Scutellum oblong-triangular, rather 

 small. Elytra oblong, a little wider than the prothorax, finely punctate-striate, the interstices flat and 

 6et with numerous irregularly distributed, rather large, rounded, umbilicate depressions, which become 

 more scattered across the middle. Pygidium somewhat convex, long, narrow, punctate and setulose. 

 Beneath closely, coarsely punctate. Prosternum with two flattened, tuberculiform prominences behind 

 the coxae. Legs stout ; femora and tibiae closely ciliate, the tibiae broad, curved, feebly sinuate within. 



Length 18 J, breadth 6^ millim. 



Hah. Costa Rica, La Palma 1600 metres (Biolley). 



One specimen. Narrower than B. interruptus ; the prothorax longer than broad, 

 abruptly constricted in front, without fovese on the disc before the middle; the 

 elytra less widened anteriorly ; the pygidium longer and narrower ; the prosternum 

 bituberculate at the base ; the peduncle of the submentum ( $ ) armed with a pro- 

 minent curved tooth towards the apex. 







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