ENTIMUS.—CYDIANIRUS. 301 
d', Rostrum short and broad: species smaller (iength 24-8 mm.). 
[ PromécopipeEs, Lacord. | 
c’. Scrobes meeting beneath the eyes; mesosternum protuberant. 
a’. Tarsal claws free; eyes distant above. . . . . . . . Coxxocerus, Schonh. 
6°. Tarsal claws connate; eyes subapproximate above . . . JucoLEocERus, gen. nov. 
d’, Scrobes not extending beneath the eyes. 
ce’. Rostrum transverse, feebly dilated anteriorly ; tarsal claws 
free; mesosternum not protuberant. . . . . . . . Hupiacocus, Schonh. 
d°. Rostrum longer, subquadrate or oblong - subquadrate, 
dilated anteriorly ; tarsal claws connate or free; meso- 
sternum protuberant or flattened. . . . . . «. » ~. PRromecops, Schonh. 
ENTIMUS. 
Entimus, Schonherr, Cure. Disp. Meth. p. 83 (1826); Gen. Cure. i. p. 454, and v. p. 744; 
Lacordaire, Gen. Col. vi. p. 281. 
A Tropical-American genus including some of the finest known weevils, one species 
extending northward to Nicaragua. 
1. Entimus arrogans. (Tab. XIV. figg. 5, 5a, b.) 
Entimus arrogans, Pascoe, Journ. Linn. Soc., Zool. xi. p. 448 (1873) *. 
Entimus plebejus, Roelofs, Compt.-Rend. Soc. Ent. Belg. xviii. p. xxxvili (1875) *. 
Length 25-27, breadth (at shoulders) 13-153 millim. 
Hab. Nicaragua, Chontales (Belt, Janson); Costa Rica, Cariblanco (Lankester) ; 
Panama !,—? CoLoMBIA 2, 
I have seen seven specimens of this species. It may be known by its cinereous 
or whitish piliform vestiture; the deeply sulcate rostrum; the tuberculate, sulcate 
prothorax ; and the very broad, triangular, interruptedly unifasciate, seriato-tuber- 
culate elytra. The deciduous portion of the mandibles (fig. 5 0) is short, curved, broad, 
rounded at the tip. 
CYDIANIRUS. 
Cydianerus, Schéuherr, Gen. Cure. v. p. 737 (1839) ; Lacordaire, Gen. Col. vi. p. 279. 
Cydianirus, Gemminger et Harold, Gen. Col. vill. p. 2326. 
The single Central-American representative of this genus has been recently referred 
by M. Bovie to Polyteles (Polydius, olim), Schénh., its depressed subapproximate eyes, 
prominent ocular lobes, and connate tarsal claws * notwithstanding ; the type of the 
latter ¢ (P. stevent= Rhigus celestinus, Perty), on the contrary, having the eyes very 
prominent and widely separated, the ocular lobes reduced to a minimum, and the 
tarsal claws free. C. argenteus, therefore, is better placed in Cydianirus till that 
genus is dismembered. 
* They are incorrectly shown as widely divergent in this and the allied species on the Plate in Wytsman’s 
‘Genera Insectorum.’ 
+ P. guerini, Fahr., is the type of Polytelidius, Bovie, 
