260 
Psyche 
[Aug. -Oct. 
parently with some latent doubt; the antennae are (in my 
specimen d ?) very different from the typical form and the hind 
tibia have a short spine, in the Biologia, Jacoby adds two Mexican 
forms, dilaticornis where the d has distorted antennae, both this 
and jansoni have a rather slender elongate body tending towards 
Luperus ; on the other hand Luperus fucatus Er. I remove to 
Chthoneis. There are several new forms which are closely 
allied to the foregoing. 
Chthoneis grossa sp. nov. 
Size, form, and structure of apicalis, Jac, rufous, the edges 
of the elytra and thorax a little yellowed, antennae, tibia and 
tarsi and nearly the whole of the abdomen black; rufous part of 
the elytra with a distinct iridescent tinge. 
Type 1 specimen, Brazil (Mann) Bow. coll. Length 10 mm. 
Head with transverse groove between the eyes, vertex 
sparsely and finely punctate, antennae barely two-thirds length 
of body, 2 joint short, 3 half longer, remainder elongate and 
somewhat compressed, thorax (exactly like apicalis) transverse, 
all the angles prominent, sides slightly rounded, depressed an- 
teriorly on either side, and with a median posterior fovea and 
anterior longitudinal sulcation, whole surface punctate, scutel 
almost smooth, elytra much wider than the thorax, without anjr 
depression, very thickly evenly punctate, the hind tibiae have 
a small but distinct spine. The claws are appendiculate. 
The future will probably separate both this form and 
apicalis from the present genus. I merely follow Mr. Jacoby. 
Chthoneis marginipennis sp. nov. 
Medium sized, black, with epipleurae, reflexed edge of elytra 
to the tip, the basal margin, and suture so as to enclose the 
scutel, white. 
Type 1 example Gua. (G. D. Smith) Bow. coll. Length 6 
mm. 
Antennae not quite as long as body ( $ ) ? 3 joint longer than 
2, first few joints narrowly white at base, head sparsely punctate 
