124 



EHYNCHOPHOKA. 



2 . Eostrum with the apical portion a little longer and more sparsely punctate, the tooth at the base of the 

 peduncle larger. 



Length 10^-16, breadth 3j-6} millim. 



Var. The spots on the prothorax and elytra indistinct or obsolete, the pruinosity of the rest of the surface 

 darker, olivaceous or plumbeous. 



Cactophagus stigmaticollis , var. cuneatus, Chevr. loc. cit.*. 



Hab. Mexico 2 3 {coll. Sommer x ; Mus. Brit.), Playa Vicente, Orizaba, Toxpam 



(Salle), Atoyac (H. II Smith), Cordova (Knab, in U.S. Wat. Mus.), Teapa (Edge); 

 British Honduras, Rio Sarstoon (Blancaneav oc) ; Guatemala, San Juan in Vera Paz 

 (Champion); Nicaragua, Chontales (Belt, Janson, Bi chard son) ; Costa Rica (Van 

 Batten), Savanillas de Pirris, Pozo Azul (Underwood), La Palma, Carrillo (Biolley), Tuis 

 (Bittier), Cache (Bogers), Tucurrique, San Carlos, Zent, Port Limon ( U.S. Nat. Mus.) ; 

 Panama, Volcan de Chiriqui (Champion). 



A variable species, and separable from the closely allied B. melanurus (Kirsch) and 

 B. quadripunctatus (Chevr.), the types of all of which I have seen, by the more finely 

 punctured upper surface, the longer rostrum, and the non-coalescent transverse subapical 

 black spots on the elytra, the general pruinosity uniformly coloured and uninterrupted 

 by whitish dots. The elytra (when seen denuded) are finely uniseriate-punctate down 

 each interstice, and the prothorax, which is more or less excavate on the disc, is 

 impressed with similar small scattered punctures. Some of the Costa Rican examples 

 are labelled as having been found on a species of Biper. 



6. Rhodobsenus subcristatus, sp. n. (Tab. VI. figg. 6, 6 a, 2. 



Subfusiform, opaque above, black, pruinose ; the elytra each with four, more or less distinct, velvety-black 

 patches— one on the shoulder, faint, one, large aud triangular, near the suture before the middle, one, 

 small and oblique, in a line with it on the outer margin, and one, large aud transverse, on the outer part of 

 the disc near the apex, those on the disc sometimes coalescent with the others on the opposite elytron. 

 Rostrum stout, slightly longer than the prothorax, abruptly bowed from the short, broad, coarsely 

 punctured basal portion, which is tumid on each side anteriorly, shallowly sulcate and crenulate beneath 

 in the 6 ; the compressed apical portion carinate, and also coarsely punctate to about the middle, smoother 

 at the sides in the 2 , and in this sex thickly set with short, sernierect, fulvous, bristly hairs along the 

 basal half above ; the peduncle of the submentum also with a small prominence in front in the 2 . 

 Antennal scape about one-half longer than the funiculus, the latter pruinose. Prothorax about as long 

 as broad, obliquely narrowed anteriorly, transversely excavate on the disc posteriorly, very sparselv 

 punctate. Scutellum narrow. Elytra very finely punctate-striate, the interstices flat and obsoletely 

 uniseriate-punctate. Pygidium setulose at the tip. Ventral excavation of the S shallow, the fifth 

 segment shallowly foveate at the apex in this sex. 



Length 11-13, breadth 3f-4i millim. ( S 2 •) 



Hab. Nicaragua (Belt: s); Costa Rica, San Carlos, Turrialba (U.S. Nat. Mus.: 

 6' 2 ), Pozo Azul (Underwood : 6 ). 



Two females and three (abraded) males. This insect is related to B. stigmaticus, 

 but it has the rostrum more abruptly bowed, and (at least in one sex) closely set above 



th short bristly hairs along the basal half of the compressed 



poi 









