352 RHYNCHOPHORA. 
XXIV. NEMOTRICHUS. 
Corrhecerus, Schoenherr, Gen. Spec. Cure. v. p. 253 (1839) (partim) ; Lacord. Gen. Col. vii. p. 548 
(1866) (partim) ; Gemm. & Har. Cat. Col. ix. p. 2787 (1872) (partim). 
Nemotrichus, Labram & Imh. Gen. Spec. Cure. i. no. 50 (1842) (type: indistinctus=pilicornis) ; 
Jord. Nov. Zool. xi. p. 270 (1904). 
Range: South and Central America. 
3 2. Rostrum at least three times as broad as long. Labium divided nearly to mentum, Antennal cavity 
completely covered. Eye sinuate, oblique. Frons about one-third the width of rostrum or less. 
Antenna very thin, with long bristles, a loose club of three segments. Carina of pronotum separate 
from base. Mesosternal process vertical in front, apical portion horizontal, subimpressed. 
In the 3 of some South-American species of this genus the mid coxa and femur are provided with combs of flat 
triangular spines. The abdomen of the ¢ is depressed mesially and more or less villose, while in certain 
species the pygidium is mucronate in this sex. The mid tibia bears sometimes an apical spine in the ¢. 
a. Carina of prothorax evenly rounded laterally. . . . . . . ww ee OG 
Carina of prothorax forming an angle of 90° with the lateral carina . . . . Species No. J. 
6. Metasternum coarsely punctured at the sides. . . . 2... 2 ew ee 
Metasternum not punctured; under and upper sides greyish-white ; elytra with 
M-shaped black spot on suturein middle . . . .. . - . . . . Species No. 6. 
c. Tibize with black basal ring which is mntermupted on upperside; apex of mid 
and hind tibiz grey on upperside . . . . . . Species No. 5. 
Tibize without black basal ring; apical half or two- thirds of tibiae black- br own. d. 
d. Pronotum with slightly interrupted grey mesial vitta . . . . . . . . . Species No. 2. 
Pronotum with small subapical spot and larger postmedian one, otherwise 
minutely speckled with luteous-grey . . . . e. 
e. Middle tibia of ¢ without apical tooth ; apical declivity of elytra v very “much 
denser pubescent clayish-grey than middle, or the brown central area reduced 
toasutural spot. . . . - . . « « « Species No. 4, 
Mid tibia of gf armed with an apical spiniform tooth ; apical declivous 
portion of elytra hardly more densely irrorated with luteous-grey than middle. Species No. 3. 
1. Nemotrichus angulatus, sp. n. (Tab. XII. fig. 27.) 
$ 2. Brownish-black, head and pronotum sparsely irrorated with luteous-grey ; prosternum more densely 
speckled, rest of underside sparsely grey or luteous-grey, marmorated and spotted with black; elytra 
pubescent clay-colour, minutely speckled with black, a sutural spot behind middle, two at lateral margin, 
one before middle, and the third before apex, and some confluent speckles on basal callosity, as well as the 
basal margin, black ; antenna rufous, ninth segment brown ; basal two-fifths of mid and hind tibia, basal 
half of fore tibia, and the tarsi rufous, pubescent clay-colour, first fore-tarsal segment brown. Frons one- 
third the width of the rostrum. Club of antenna strongly asymmetrical, segment 9 longer than 11, 10 more 
than twice as long as broad. Base of pronotum feebly bi-emarginate, carina parallel with it, forming an 
angle of 90° with the slightly flexuose lateral carina, the tip of the angle being rounded off. Elytra 
slightly depressed at suture, rounded-declivous from middle. Pygidium in g¢ feebly acuminate, in 9 
unevenly rounded at the apex, with the margin somewhat turned upwards. Abdominal segments of 
3 villose in middle, depressed. 
Length 43-63 millim. 
Hab. Panama, Volcan de Chiriqui, Bugaba (Champion). 
A series. 
