CNESINUS. 137 
Oblong, piceous, shining, glabrous, the apex of the elytra excepted. Head black, finely reticulate and punc- 
tured; rostrum short, flat; mouth fringed, front pilose within the border of the eyes, the latter not 
approximate; antenne ferruginous. Prothorax transverse, feebly constricted towards apex, sides straight 
behind, rather strongly rounded in front; disc rather finely and uniformly punctured, the punctures not 
dense nor strigose, indistinctly subaciculate at the apical and lateral margins only, median line well defined, 
smooth, not elevated. Elytra less than twice as long as the prothorax and a little wider at base, their 
basal margins scarcely rounded, elevated, the shoulders elevated, sides subampliated about the posterior 
third, apex circularly rounded ; surface impressed throughout along the suture, striate, the strie shallow at 
base, with small separate punctures, deeper towards the apex, with the punctures coalesced, interstices 
subconvex, with fine irregular punctures and a few transverse wrinkles, towards apex with a single series 
of small tubercles bearing long coarse sete, shorter on the first interstice, and ceasing before apex, the 
third more prominent on the declivity. Underside piceous, punctured. Legs piceous-red; teeth of the 
tibia stout and short, the apical angles of the middle and hinder pairs distinctly produced. 
Hab. Panama, Volcan de Chiriqui (Champion). 
Described froma single specimen. The character of the prothoracic sculpture will at 
once differentiate this species, which does not stand in close relationship to any other. 
2. Cnesinus porcatus, sp.n. (Tab. VI. fig. 9.) 
Subelongatus, subopacus, piceus vel niger, antennis tarsisque rufescentibus, breviter parce pubescens; pro- 
thorace transverso, dorso dense longitudinaliter strigoso ; elytris striatis, striis ad basin punctatis, inter- 
stitiis angustis, per totum in costellas binas sulcatis, sulcis preecipue versus apicem seriato-pilosis. 
Long. 3 millim. 
Mas. Fronte nitida, a rostro carina transversa separata, 
Fem. Fronte opaca, medio obsolete elevata. 
Oblong, somewhat elongate, piceous or piceous-black. Head black, its vertex dull, closely reticulate, and 
finely punctured ; front (3) with a shining triangular surface, separated from the rostrum by a sharp 
interocular carina; front ( Q ) opaque and subelevated between the eyes, the latter not contiguous above ; 
antenne fusco-ferruginous, the funiculus little thickened apically. Prothorax rather broader than 
long, the sides nearly straight to the middle, thence rounded to the apex; thinly pubescent, closely 
strigose, with narrow elevated interspaces. Scutellum rounded, rugose. LElytra a little wider than the 
prothorax, nearly twice as long, separately rounded but not crenate at base, the sides subparallel to the 
hinder third, thence obliquely rounded; strie rather wide and sharp, strongly punctate at the base only, 
interstices narrow, sulcate throughout, the sulci opaque, obsoletely punctate, set with short, yellow, 
seriate hairs, closer and stronger on the declivity, their margins subcostate and finely pubescent towards 
the apex. Underside piceous-black, pubescent, the abdomen more strongly. Legs piceous, with lighter 
tarsi; spines of the tibiw not strong, the apical processes of the hinder pairs obsolete. 
Hab. Guatemata, Cerro Zunil (Champion); Panama, Volcan de Chiriqui (Champion). 
—VENEZUELA (Moritz). 
Six specimens were taken by Mr. Champion, and I have seen others from Venezuela. 
It is a well-marked form, not capable of being confounded with any species except 
the next. 
3. Cnesinus costulatus, sp. n. 
Antecedenti similis, sed minor, pro portione brevior, convexior ; totus niger, antennis tarsisque dilutioribus ; 
striis elytrorum minus profundis, lateralibus ad basin fortius punctatis, sulcis minus pilosis. 
Long. 2-2°3 millim. 
Sexus note ut in antecedente. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 6, June 1896. | ry 
