390 RHYNCHOPHORA. 
smooth. Pygidium densely punctate. Beneath sparsely punctate, the punctures coarse along the sides. 
Prosternum broadly flattened down the middle and with a deep oval fovea in front, the basal process 
shallowly sulcate and feebly binodose, not quite covering the mesosternum. Anterior coxe separated by 
a little more than their own width. Legs rather elongate; tarsal claws subconnate at the base. 
Length 32-34, breadth 1g-2 millim. (@.) 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
Two females. The subtriangular, uneven, faintly striate elytra, the deeply foveate 
infra-interocular portion of the head, the deep oval prosternal fovea, and the compara- 
tively elongate legs distinguish A. plicatipennis. 
SOLARIA, gen. nov. 
Zostrum curved, as long as or longer than the head and prothorax, moderately stout or stout, sometimes with 
the apical portion more slender, longer, and straighter in the Q ; antennal club ovate, acuminate, 
pubescent ; mandibles decussate ; prothorax feebly or moderately constricted in front, deeply sinuate at 
the base, the median lobe rounded ; scutellum very small, flat, transverse, triangular or rounded behind 
(S. gibba) ; elytra not or very little wider than the prothorax, narrowing from the rounded humeri ; 
pygidium fully exposed, subvertical; prosternum at most shallowly sulcate, with two small oblong fovew 
in front, unimpressed in S. compressicollis, the basal process large and broad, covering the mesosternum, 
and more or less arcuate-emarginate behind (fig. 26); anterior coxse separated by more than their own 
width; ventral segments 1 and 2 connate at the middle, 1 not depressed in the g ; femora dentate, the 
posterior pair sometimes unarmed (S. compressicollis) ; tarsal claws free; body oblong-subcuneiform, 
elliptic, or oval, almost glabrous. 
Type, S. acutedens. 
This genus includes Baridius curtulus, Boh., and Onychobaris dentitibia and 
O. armipes, Solari, and various closely allied forms. 0. punctatissima and O. nicara- 
guensis, Solari, from Mexico and Nicaragua respectively, are more nearly related 
to Onychobaris, Lec., and will be dealt with later on. The numerous N.-American 
forms (which are mostly confined to Arizona and New Mexico) included under 
the last-mentioned genus by Casey have the basal process of the prosternum incom- 
pletely covering the mesosternum, the femora unarmed, and the surface of the body 
setulose above and beneath. Solaria is nearly related to Madarellus and Radamus, 
near which it must be placed. The five Central-American forms may be separated 
thus :— 
a. Prosternum faintly sulcate or bifoveate anteriorly ; pygidium large; body 
oblong-subcuneiform or elliptic. 
a’, Anterior tibie very sharply dentate within in @, triangularly widened 
MP ee ee ee ee ee ee ee + 5 acutidens, sp. n. 
6', Anterior tibiz sinuate within in both sexes. 
a’. Rostrum curved in ¢, longer and straighterin 9 . . . . . . . curtula, Boh. 
6°, Rostrum curved and about equal in length in the two sexes . . . . curvata, sp. 2. 
b. Prosternum distinctly sulcate ; pygidium short, strongly transverse ; prothorax 
somewhat gibbous at the base; elytra uneven; anterior tibie almost 
straight within; body broad-ovate. . . 2. 2. 1. 2. 1... . gibba, sp. n. 
