CORTHYLUS. 261 
recalls in this respect Xyleborus sanguinicollis, but is separable as well by the absence of 
the apical spines on the elytra as by its generic characters. The cirri of the antennal 
club are inconspicuous and were overlooked by me; but Mr. Wilson duly observed 
them in drawing the antenna. 
8. Corthylus collaris, sp. n. 
Mas. Oblongus, prothorace rufo-ferrugineo, elytris nigris, antennis et pedibus testaceis; C. rubricolli g 
assimilis, sed dimidio minor, angustior, capite infuscato, prothoracis apice fortius tuberculato, elytris ad 
apicem rufescentibus, declivitate juxta suturam fortius impressa distinguendus. 
Long. 2°1 millim. 
Male. Closely resembling a small example of C. rubricollis. Forehead infuscate, flattened, with a few fine 
punctures near the mouth, the oral border impressed on either side; antenne testaceous, the club smaller 
and more orbicular. Prothorax a little longer than broad, more ’ strongly rounded in front, the apical 
margin relatively more strongly bituberculate ; its disc less ample, with an indistinct darker median 
shade. Elytra not narrower at the base than the prothorax, shaped as in C. rubricollis, with the apical ~ 
border a little less obtuse; surface shining, hardly visibly punctured ; declivity convex, rufescent, rather 
strongly impressed along the suture, the borders of which are subelevated, impression with a single 
row of punctures, its external borders prominent, raised into a slight callosity. Underside behind the 
prothorax piceous-red. Legs testaceous. 
Hab. Guatemaa, Cerro Zunil (Champion). 
One specimen. ‘The eyes in this little species are less approximate below to the 
buccal border than in its congeners. 
In the type from Guatemala the scutellum is entirely black; in another example in 
my possession from tobacco-refuse it is coloured as in C. rudricollis, but the rufous 
patch is less distinct. 
9. Corthylus parvulus, sp. n. 
Mas. Oblongus, nitidus, capite et prothorace fuscis, hujus apice summo et basali dimidia parte rufo-testaceis, 
elytris nigris, antennis et pedibus testaceis ; prothoracis apice bituberculato ; elytris minutissime lineato- 
punctatis, apice obtuso, declivitate convexa tuberculis minutis setiferis adspersa. 
Long. 1°7 millim. 
Male. Oblong, rather shining. Head fuscous (retracted in the type); antennz testaceous-brown, the club 
rather small, orbicular-oval. Prothorax as long as broad, nearly parallel-sided behind the middle, the 
apex subcircularly rounded, prominently bituberculate in the middle, very slightly sinuate laterally, 
the base truncate; surface with a distinct median transverse elevated ruga, horizontal and slightly 
impressed behind it, its anterior half fuscous with the apex narrowly testaceous, granulate-asperate 
and very shortly pubescent, its posterior half reddish-yellow, shining, minutely punctured. Scutellum 
triangular, shining, black with an indistinct testaceous basal patch. TElytra as wide as the prothorax and 
less than one-half longer, nearly parallel-sided, the apical margin obtusely rounded; surface sub- 
cylindrical at the base, becoming declivous from the middle, black, with rows of extremely fine punctures, 
the sutural row more distinct ; declivity convex, with scattered minute setiferous tubercles along the 
suture, the third and outer interstices. Underside fuscous. Legs testaceous. 
Hab. Guatemaua, Las Mercedes (Champion). 
One specimen. This species is separated from either of the preceding by its more 
