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130 



RHTNCHOPHOEA. 



Subfusiform, rather narrow, opaque above, varying in colour from black to ferruginous, with the prothorax 

 nigro-trivittate and the elytra black in the spaces occupied by the velvet}' spots, plumbeo-pruinose, the 

 scattered fine punctures each surrounded with a small cinereous dot, the elytra each with three sharply- 

 defined, large, velvety-black spots — one just below the shoulder, one near the suture before the middle, 

 and one, transverse, on the outer part of the disc towards the apex. Rostrum abruptly bowed downward 

 from the short, broad, coarsely punctured basal portion, the latter tumid on each side anteriorly, the 

 apical portion strongly compressed, almost smooth at the sides in the 5 and sparsely punctate basally 

 in the <J ? the peduncle of the submentum with a small prominence in front in the $ . Antennal scape 

 about twice as long as the funiculus. Prothorax as long as, or a little longer than, broad, obliquely 

 narrowed in front, transversely excavate on the disc posteriorly, very sparsely, finely punctate. 

 Pygidium subconical, pilose at the tip. Ventral excavation of the <5 broad, the first segment with a 

 small compressed tubercle in the middle in this sex (fig. 18 6), the fifth often with a shallow fovea. 

 Metasternum becoming tumid towards the narrow, conical, intercoxal process. 



Length 8-12, breadth 2|-3| millim. ( d $ •) 



IJab. Mexico (coll. Sommer 1 ; Mus. Brit.), Toxpam, Playa Vicente, and Sante- 

 comapan in Vera Cruz (Salle), Atoyac, Teapa (H. H. Smith), Juquila (Edge); 

 Guatemala, Cubilguitz, San Geronimo, Purula, Panima, Sabo, and San Juan in Vera 

 Paz (Champion), Trece Aguas (U.S. Nat. Mus.). — % South America, Cayenne 2 . 



Found in numbers in various places on the Atlantic slope of Southern Mexico and 

 Guatemala ; the locality quoted by Chevrolat for B. centromaculatus, Cayenne 2 , must 

 have been due to some mistake in labelling : I have seen his type and also that of 

 Fahraeus, and they are absolutely similar. This species is easily separable from 

 B. stigmaticus by the laterally tumid antero-basal portion of the rostrum (which is 

 formed as in B. olivaceus and B. subcristatus) and the longer scape to the antenna?. 

 The light-coloured examples have a purplish tint. The smoother, non-cristate rostrum, 

 the presence of a small compressed tubercle on the first ventral segment of the male, 

 and the sharply-defined large velvety-black spots on the elytra separate B. maculifer 

 from B. subcristatus. In one abraded reddish example only (1 immature), from Sabo, 

 the elytral spots are obsolete. 



18. Rhodobasnus sexguttatus, sp. n. (Tab. VI. figg. 19, 19 a, $ . 



Moderately elongate, obscure rufous variegated with black, the black markings on the prothorax condensed 

 into live incomplete stripes (the median one not reaching the base, the submargiual ones abbreviated 

 anteriorly, and the one on each flank oblique), the elytra each with three large velvety-black spots (one 

 at the shoulder, one on the disc, triangular or subquadrate, somewhat distant from the suture, at about 

 one-third from the base, and one, still larger, near the apex) and a smaller indistinct blackish spot at 

 about the middle of the outer margin ; the rest of the surface cinereo-pruinose, the punctures each 

 surrounded by a rather large rounded whitish or pale brown spot. Rostrum stout, regularly arcuate, in 

 the c? a little shorter than the prothorax and closely coarsely punctate to near the tip, in the $ smoother 

 and slightly longer, the basal portion moderately widened, the peduncle of the submentum annulate 

 anteriorly, very narrow, and compressed. Prothorax about as long as broad, obliquely narrowed 

 anteriorly,- feebly bisinuate at the base ; sparse!}-, rather coarsely punctate, transversely depressed on the 

 disc posteriorly. Scutellum elongate-subtriangular, narrow. Elytra finely punctate-striate, the inter- 

 stices uniseriate-punctate. Pygidium sparsely punctate, clothed with bristly fulvous hairs ' at the tip. 

 Ventral excavation of the J shallow. Femora fringed with long, the tibise with short, hairs. 



Length 10-1 1|, breadth 3|-4 millim. ( 3 $ .) 





















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