208 MALACODERMATA. 
which are most trustworthy are the absence of any groove or fossa below the callus, the 
shorter submarginal strie, which do not commence till the middle of the margin, and 
the generally uniform aspect of the punctuation. When the silky pubescence is quite 
removed, sometimes very faint indications of the gemellate striae may be seen. In the 
specimens from Duefias, which I take as the types, the front of the head and the 
underside are densely squamose, with white hair-like scales; but this is not the case in 
some other examples, from which I conclude this is easily rubbed off during life. This 
little insect when its limbs are retracted must closely resemble a small black seed. It 
about the size of, and not uulike the European Dorcatoma flavicornis. There is 
only one example labelled “Chontales,” most of the specimens from that locality 
being referable to C. herbarium. 
The example figured is one from Duefias. 
DORCATOMA. 
Dorcatoma, Herbst, Kafer, iv. p. 103. 
Cenocara, Thoms. Scand. Col. v. p. 174. 
Enneatoma, Muls. et Rey, Téréd. p. 367. 
Anitys, Thoms. Scand. Col. v. p. 175. 
I have taken Dorcatoma in its more extended sense, the subdivisions represented by 
the synonymy above being based for the most part upon the reduction of joints in the 
antenne from ten to eight. Our Central-American species on this view would require 
at least one new genus; for we have an eleven-jointed species, but the eight-jointed 
species are not similar to Anitys, or indeed to any European species. About a dozen 
species of Dorcatoma are known: three occur in North America, two in Japan, one in 
South Africa; the remainder are European. The power of retracting the limbs is very 
perfect. The species occur in rotten wood, in the puff-ball (Lycoperdon), and (Anitys) 
in the oozing sappy “ frass” which exudes from wounds in oak trees. 
Section A. Antenne eleven-jointed. 
1. Dorcatoma tomentosa. (Tab. X. fig. 16.) 
Subhemispharica, valde convexa, dense breviter cinereo-pubescens, macula denudata rotunda circa scutellum 
antennis pedibusque testaceis. Long. 3-33 millim. 
Hab. GuatEMALa, San Gerdnimo, Cerro Zunil (Champion). 
The head in this species is transverse; the eyes widely separated and finely granu- 
lated. The antenne, although eleven-jointed, are formed as in typical Dorcatome, the 
basal joint being large and wide and a little curved ; the second is triangular, the third 
to the eighth very short and together not longer than the following joint, which is 
widely and angularly developed on its inner side, the apical margin being a little 
