394 ° | HETEROMERA. 
CALOSPASTA. 
Calospasta, Leconte, Class. Coll. N. Am. p- 273 (1862); Horn, Trans. Am. Ent. Soc. i. p. 92 
(1870); Leconte & Horn, Class. Coll. N. Am. p. 421 (1883); Horn, Proc. Am. Phil. Soc. 
xxix. p. 99 (1891). 
Nine species are known of this genus, all from the Southern United States, chiefly 
from Southern California. One of these crosses the Mexican boundary into Coahuila. 
A single species is now added from Western Mexico. Calospasta is closely allied to 
Kupompha, but differs from it by the vertex being much less raised. The lower portion 
of the tarsal claws is a little shorter than the upper and connate with it. C. sulcifrons 
resembles Eupompha in having the three basal joints of the anterior tarsi smooth and 
greatly swollen in the male, but these joints are not grooved above as in FE. fissiceps : 
this character, however, is present in the Californian C. histrionica, Horn. The genus 
Tegrodera is a close ally of Calospasta, and the single species belonging to it will 
probably be found eventually in Northern Mexico; it occurs in Lower California. 
1. Calospasta mirabilis, (Tab. XVIII. fig. 12.) 
/alospasta mirabilis, Horn, Trans. Am. Ent. Soc. ili. p. 93°; Proc. Am. Phil. Soc. xxix. pp. 99, 100°. 
Hab. North America, South-western Utah’, Mojave Desert? and San Diego ?, 
alifornia, Rock Spring? and near Fort Yuma?, Southern Arizona !.— Mexico, 
Coahuila (Dr. Horn). 
We are indebted to Dr. Horn for a Mexican example of this beautiful species. 
2. Calospasta sulcifrons. (Jab. XVIII. fig. 14, ¢ .) 
Moderately elongate, parallel, very sparsely, finely pubescent ; the head and prothorax shining, ferruginous, the 
former with the eyes and a narrow stripe on the vertex black, the latter with a black posteriorly widened 
median stripe extending from the base to the apex ; the scutellum and elytra black, the latter with the 
sides nearly to the apex and the base rather broadly reddish-yellow, less shining than the prothorax; the 
underside metallic greenish or eneous; the legs black, the anterior tarsi (the apical joint excepted) 
ferruginous in the male. Head convex, moderately large, very sparsely, finely punctured, the front with 
a very deep broad channel in the middle—not reaching the vertex, and deeper and widening anteriorly in 
the male,—the eyes large and convex, feebly emarginate, the epistoma yellow; the labrum and palpi 
piceous, the apical joint of the maxillary pair testaceous, cylindrical, the mandibles not extending beyond 
the labrum ; antenne black with the three basal joints more or less testaceous at their base, short, filiform, 
similar in both sexes, the joints closely articulated—1 short, stout, thickening outwardly, 2 extremely 
short, 3 nearly three times as long as 2, and one-half longer than 4, 3-11 cylindrical, 4-10 subequal, 
11 one-half longer than 10; prothorax narrow, longer than broad, the sides obliquely converging in front, 
the disc shallowly transversely depressed before the middle and also in the centre at the base, the surface 
very sparsely, irregularly, and finely punctured, a rather broad space down the middle impunctate; 
elytra nearly twice as wide as the prothorax, moderately long, parallel, flattened on the disc, finely and 
rugulosely punctured ; beneath and the legs closely and finely punctured, the metasternum smoother ; outer 
spur of the hind tibie very broad, subtruncate at the tip, the inner one slender, acute. 
g. Anterior tarsi with joints 1-4 smooth and convex above—1-3 greatly swollen, 4 feebly so, 1 much longer 
than 2. Sixth ventral segment triangularly emarginate. 
Length 11-14, breadth 33-4 millim. (¢ 2.) 
Hab. Mexico, Venta de Zopilote in Guerrero 2800 feet (H. H. Smith). 
