CHELYMORPHA.—SELENIS. 159 
24, Chelymorpha obliterata. (Tab. VII. fig. 21, ¢.) 
Subrotundate ( ¢), ovate ( 2), convex, glabrous, shining ; rufo-testaceous or testaceous, the head, the prothorax 
with a median vitta behind (usually extending narrowly forwards to the apex) and sometimes the sides 
broadly from the middle to the base, and the scutellum, black; the elytra with the suture for a short 
distance below the scutellum, the entire exterior limb, a small spot on the humeral callus, and sometimes 
a similar spot in a line with it about the middle, in one example with two other very small spots 
placed one behind the other nearer the suture (the anterior one nearly in a line with the median spot, 
when present), black ; the antenne and legs, the exterior limb of the elytra rather broadly, and the under 
surface of the body black, the antenne with the four or five basal joints rufo-testaceous beneath. Head 
rugosely punctured and canaliculate between the eyes, the lower part with a few scattered punctures ; 
antenne about reaching the base of the prothorax, the five basal joints smooth and shining. Prothorax 
convex, twice as broad as long, arcuate-emarginate in front, the sides rounded from the base and rapidly 
converging from the middle forwards, the base deeply emarginate on either side externally, the median 
lobe broad and obtuse, the hind angles sharp and produced behind; the disc with an interrupted faint 
median groove, sparsely, minutely punctate; the margins moderately expanded, concave, coarsely, con- 
fluently punctured, the outer edge very narrowly reflexed. Scutellum smooth. Elytra regularly convex, 
in the ¢ about three, in the 2 more than four times as long as the prothorax, and wider than it at the 
base, rounded at the sides anteriorly, widest before the middle, the humeri rounded ; the margins rather 
broadly expanded and deflexed; the entire surface thickly, rather coarsely punctate. Beneath almost 
glabrous, smooth, the metapleure with scattered coarse punctures ; prosternum very deeply sulcate poste- 
riorly. Claws appendiculate. 
Length, ¢ 2, 9-102, breadth 7-8 millim. 
Hab. GuateMaLa, Tactic in Vera Paz (Conradt), San Gerénimo in Vera Paz 
(Champion). 
A pair from Tactic and a female from San Gerénimo. This insect closely. resembles 
Boheman’s var. ¢ of the Mexican C. yuvenca; but may easily be known from it by the 
entirely glabrous upper surface. It is more nearly allied to C. guttifera, C. epilach- 
noides, &c. The species is probably a variable one. 
SELENIS. 
Selenis, Hope, Ann. Nat. Hist. iii. p. 96, t. 4. fig. 3 (1839) ; Boheman, Monogr. Cassid. ii. p. 94. 
A Tropical-American genus containing four described species, one of which occurs 
within our limits, remarkable from having the humeral angles of the elytra acutely 
prolonged forwards in the male sex, the elytra themselves often perforated. 
1. Selenis sparsa, (Tab. VII. figg. 22,3; 23, 2.) 
Selenis sparsa, Boh. Monogr. Cassid. 11. p. 100*, and iv. p. 221°; Cat. Col. Ins. Brit. Mus. ix. 
p. 86°. , 
Hab. 1 Mexico!*; Nicaragua, Chontales (Belt, Janson); Costa Rica (Sallé) ; 
Panama, Bugaba, David, Tolé (Champion), Chiriqui (Aibde), Matachin (Thiéme).— 
Cortomsia 1~?; ¢ Bonivia!. 
Found in abundance by myself on low plants on the river-banks at David. The 
localities ‘‘ Mexico” and “ Bolivia” require confirmation ; both are probably given in 
mistake by Boheman 1, the second not being quoted by him in his subsequent works. 
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