EPAGRIUS. 137 
sion, and each side broadly but slightly longitudinally impressed. Elytra with regular 
series of somewhat large and distant punctures. 
Chevrolat’s description! is so full of clerical and grammatical errors as to be 
unintelligible; but it may possibly refer to this insect. The Guatemalan specimens 
of the species in Sallé’s collection are labelled with the name I adopt, as is also an 
example from Chevrolat’s collection communicated by Dr. Aurivillius. Sallé’s pair 
from Chiapas, on the other hand, are ticketed §. viator, Chevr., and an example in 
my own collection is named “ Graphorhinus planidorsis, Jekel.” The species is appa- 
rently rare, and we have received but one or two examples from each locality. I 
treat them all at present as belonging to one species; but if this be the case it must 
be a very variable one. There is, however, no difficulty in identifying it, as none of 
the forms come very near to any other species. 
The description of Synthlibonotus viator, Chevr., is also unintelligible; but a speci- 
men communicated by Dr. Aurivillius from Chevrolat’s collection is, I believe, a variety 
of the male of his S. albosquamosus. 
Group 4. 
16. Epagrius preteritus, sp. n. (Tab. VI. fig. 1.) 
Latus, niger, subnitidus, fere nudus; prothorace subtransverso, irregulariter haud fortiter punctato; elytris 
seriatim obsolete foveolatis, interstitio tertio subelevato. 
Long. 12 millim. 
Hab. Mexico, Chiapas (Sailé). 
Rostrum short, unimpressed in front, shining black, rather finely punctate, the eyes 
not convex. Thorax 23 millim. long, 34 millim. broad, slightly narrowed in front; at 
the sides somewhat coarsely and irregularly, on the disc more finely, punctate. Elytra 
with each shoulder and base a little rounded, the scutellum quite distinct ; the sculpture 
is obsolete, as if worn down, and consists of rows of subobliterated, remote, moderately 
large punctures ; the third interstice is obscurely elevated for the greater part of its 
length. First ventral suture greatly obliterated, the second, third, and fourth sutures 
extremely deep. One specimen. 
This is a most peculiar species that may possibly prove to belong to the ‘ Otiorhyn- 
chine alate ;’ it has the scutellum and base of the elytra formed as in some members 
of that division, the mesosternum short, and the side-pieces divided so that the suture 
extends to the front. If #. preteritus proves to be provided with wings it will 
probably require a new genus for its reception; the insect has, however, more the 
appearance of EL. albosguamosus than of any other form, and I place it provisionally 
near that species, though, as the two come from the same locality, it is possible the 
resemblance between them may be of the kind called mimetic. 
BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 3, November 1891. TT 
