TELESICLES.—CISTELA. 451 
at the base, moderately long, rounded at the shoulders and thence to beyond the middle parallel, punctate- 
striate ; metasternum long, shallowly grooved in the middle; intermediate and posterior coxe rather 
widely separated ; posterior coxee divided into two nearly equal parts by the transverse groove; abdomen 
with five visible segments ; legs slender, moderately long, the penultimate joint of the tarsi feebly lobed 
beneath ; claws pectinate ; body elongate, subparallel, depressed, pubescent, winged. 
The single species from Northern Mexico included in this genus has quite a different 
facies from any of the allied Central-American forms, though approaching Alethia in 
some of its characters. The depressed elongate shape, posteriorly constricted thorax, 
short and stout antenna, broad head, small eyes, the elytra moderately long and much 
broader than the thorax, the rather widely separated hinder coxe, slender legs, and 
other characters noticed above sufficiently distinguish Telesicles from its allies. One 
example only, apparently a female, has been received. 
1. Telesicles cordatus. (Tab. XX. fig. 21.) 
Light brownish-castaneous, thickly pubescent, shining. Head coarsely and somewhat thickly punctured, the 
transverse frontal groove deep, the space between the eyes rather convex; prothorax somewhat convex, 
broader than long, the sides much rounded anteriorly and constricted behind, the hind angles rather pro- 
minent, the disc obsoletely canaliculate behind and transversely impressed before the base, the basal fovew 
distinct, the surface punctured like that of the head; scutellum finely and closely punctured; elytra 
depressed, deeply and somewhat coarsely punctate-striate throughout, the interstices almost flat, and each 
with two irregular rows of coarsish punctures; beneath sparsely and rather coarsely punctured ; legs and 
antenne ferruginous. 
Length 53 millim.; breadth 2} millim. (9?) 
Hab. Mexico, Villa Lerdo in Durango (fHége). 
CISTELA. 
Cistela, Fabricius, Syst. Ent. p. 116 (1775) ; Lacordaire, Gen. Col. v. p. 504 (1859) (pars). 
The Central-American species I include in this genus have the penultimate joint of 
the tarsi not lobed beneath, the third joint of the antenne shorter than the fourth (in 
the males of several very short and only a little longer than the second), and joints 
4-10 of the antenne in the male elongate-triangular or serrate and often much longer 
than in the female. ‘Two well-marked groups of species appear to be indicated—one 
having undilated anterior tarsi, and a simple (but hidden) sixth ventral segment, in the 
male; the other with the basal joints of the anterior tarsi dilated, and the (hidden) sixth 
ventral segment with strongly developed lateral lobes, in the male. I am unable to 
satisfactorily separate any of the Central-American representatives from Cistela, or to 
include them in either of the genera proposed by various authors for certain North- 
American or European species. In the short third joint and serrate antenne in the 
male several of the Central-American forms are suggestive of Chromatia; the latter, 
however, is stated to have the sixth ventral segment prominent in this sex, a character 
not shared by our insects. 
In C. fragilicornis (the female only of which is known to me) the antenne are 
exceedingly long and slender. A large number of species from all parts of the world 
3 MM 2 
