The Philippine journal of science. [Vol. 57, no. 1]

406

The Philippine Journal of Science

Besides the difference in the structure of the fastigium of
vertex the new species is easily separated from mindanensis by
its smaller size, the nonpunctured occiput, the shape of the elytra, and the coloration.
Hebard wrote in the description of his Acanthocoryphus mindanensis that this species "is widely distinct from A. brongniarti
Karny described from Tonkin but no characters warranting generic separation can be determined." But the discovery of the
second similar species in the Philippine Islands with the same
general morphology as mindanensis reveals (after a careful comparison of these species with the description and excellent figure
of Acanthocoryphus brongniarti) 6 many morphological differences, described above, between the Philippine species and the
genotype of Acanthocoryphus. On the other hand there is a
relatively broad geographic separation between Acanthocoryphus
and Coryphodonta gen. nov., which is another good reason for
the separation of these two genera.

" Revisio Conocephalidarum (1907) 72, fig. 17.