96 RHYNCHOPHORA‘ 
and second ventral segments are separated laterally, and there is no visible scutellum* ; 
whereas in Typhloglymma the eyes are stated to be wanting, the scrobes are subcon- 
tiguous beneath, the first and second ventral segments are completely fused, and there 
is a small visible scutellum. From Dioptrophorus the present genus differs in having 
the prosternum more developed in front of the anterior coxe, the pronotum extending 
back over the mesonotum (the elytra being hollowed at the base for its reception), &c. ; 
the entire surface, too, is coated with a permanent, smooth, glossy incrustation. The 
two species here described were found at a high elevation in Guatemala and Mexico 
respectively, one of them under the bark of fallen pines. The unique type of Typhlo- 
glymma was taken out of debris from a cavity in a decayed oak, in which was a nest 
of Formica pennsylvanica. 
1. Ithaura pinicola, sp.n. (Tab. VI. figg. 26, 26a, 3; 27, 9.) 
Moderately convex, grey or brownish-grey, the antenne and tarsi obscurely rufescent ; the upper surface very 
coarsely and somewhat closely punctate, with the interspaces smooth, the punctures each bearing one or 
two extremely minute golden scales ; the legs with a few short hairs, and some longer and more bristly 
ones on the lower edge of the femora and on the inner edge of the tibie. Rostrum strongly constricted at 
the base, much shorter than the prothorax in both sexes, smoother in the Q than in the g. Prothorax 
longer than broad, feebly rounded at the sides, narrowed in front and slightly so behind, strongly 
constricted at the sides before the apex, the groove not extending across the dorsal surface, the disc 
finely carinate down the middle; the punctures large and rounded. Elytra oblong-oval, a little wider 
and nearly one-half longer than the prothorax, conjointly rounded at the apex ; the punctures large, oval, 
and arranged in nine regular rows ; the interstices flat in some specimens and distinctly convex in others. 
Beneath very coarsely punctate, except the third and fourth ventral segments, which are smooth, the 
first segment flattened in the middle in the ¢. Tibie very minutely denticulate on the inner edge ; 
the anterior pair with a fine sharp tooth before the middle in the ¢. 
Length 43-6, breadth 2-2} millim. (¢ @.) 
Hab. Guatemata, Totonicapam 8,500-10,500 feet (Champvon). 
Ten specimens, found under the bark of decaying pines. The sculpture of the 
upper surface of this species is exactly like that of Typhloglymma puteolatum, from 
Ohio, as figured by Dury. The much smaller size, the very coarsely punctured 
thorax, &c., separate it from J. strangulata, the type of the genus. 
2. Ithaura exarata, sp.n. (Tab. VI. fig. 28, 3.) 
Elongate-ovate, convex, greyish-olivaceous, the antenne and tarsi rufescent ; the punctures of the upper and 
under surfaces each bearing a minute, piliform, golden scale ; the legs with short hairs. Rostrum feebly 
constricted at the base, a little more than one-half the length of the prothorax, coarsely, closely punctate. 
Prothorax longer than broad, distinctly rounded at the sides, narrower in front than at the base, the 
anterior constriction just visible from above ; the surface somewhat closely impressed with large rounded 
punctures separated by smooth, flat interspaces, and with indications of a raised line down the middle. 
Elytra oval, nearly one-half longer than the prothorax, finely seriate-punctate, the interstices strongly 
convex, of the same width as the spaces between them, and each with a series of very fine scattered 
punctures. Beneath extremely coarsely punctate, except the anterior portion of the mesosternum and 
the third and fourth ventral segments, which are smooth, the first segment flattened in the middle. 
Length 54, breadth 24 millim. (<¢.) 
* Pascoe states that there is a small scutellum present; but this is a mistake, as shown by his figure. 
