216 RHYNCHOPHORA. 
subequal in length, the scape reaching beyond the front of the prothorax. Prothorax subcylindrical, 
narrow, about as long as broad, finely punctate. LElytra much broader than the prothorax, gradually 
widening to the middle in 9, transversely depressed at the base; punctate-striate, the interstices 
somewhat convex. Anterior femora with a rather long slender tooth, the other femora feebly dentate. 
Anterior tibiw long, curved, sharply unguiculate. 
3. Fifth ventral segment excavate in the middle at the apex, and with a long, stout, blunt, tooth-like 
process on each side of the emargination. 
Length 41-44, breadth 14-2 millim. (d 92.) 
Hab. Costa Rica, Turrialba (U.S. Nat. Mus.: 2); Panama, Volcan de Chiriqui, 
Pefia Blanca 3000 feet (Champion: 3 9). 
Three males and three females, varying in the colour of the scales, one of the 
specimens being almost uniformly brown. Extremely like the Venezuelan A. sulci- 
collis, Faust (for a female of which we are indebted to Dr. Heller); but differing 
from it in the basally constricted upper portion of the rostrum, the non-sulcate 
prothorax, and the strongly bicaudate fifth ventral segment of the male *. 
2. Anypotactus exilis. (Tab. IX. fig. 16.) 
Anypotactus exilis, Boh. in Schénh. Gen. Cure. vi. 1, p. 800"; Faust, Stett. ent. Zeit. 1892, p. 20°. 
Hab. Guatemata, La Tinta, Tamahu, and San Gerdnimo in Vera Paz (Champion), 
Trece Aguas (U.S. Nat. Mus.) ; Nicaragua, Chontales (Janson) ; Costa Rica, Piedras 
Negras (U.S. Nat. Mus.), San José (Biolley).—Cotompia!; VENEZUELA, Caracas 2. 
Smaller (length 3-34 mm.) and less elongate than A, bicaudatus and A. sulcicollis ; 
the sete on the upper surface very short and inconspicuous; the antenne shorter ; 
the rostrum constricted at the base as in A. bicaudatus (as seen in profile); the 
prothorax transverse; the elytra each with a large, transverse or triangular, dark 
patch on the outer part of the disc just beyond the middle, followed by a broad 
whitish fascia and sometimes preceded by a small pallid spot; the femora not so 
stout, each with a small tooth. I am unable to distinguish the male from the female 
in the long series before me, including the Colombian type. 
POLYDACRYS. 
Polydacrys, Schénherr, Gen. Cure. ii. p. 180 (1834); vi. 1, p. 298; Lacordaire, Gen. Col. vi. 
p-. 75. 
ELumerus, Jekel, in Mus. Brit. 
The species of this genus, the type of which is P. modestus, Gyll., from Cuba, may 
be known by the following characters :— 
Mandibles with a truncated process in front (bearing the deciduous piece), usually extending beyond the apex 
of the rostrum ; rostrum with a sharply-defined triangular nasal plate limited behind by a v-shaped 
_* There is an allied Colombian insect in the British Museum, too imperfect to describe, with the subapical 
transverse portion of the rostrum larger and more raised, and the antenne comparatively short. 
