Cyb. bellatula Dalman.

[Pl. IV fig. 2.]

We give a new figure of the hypostoma to complete that of Fr. Schmidt, pl. XIII fig. 9. The anterior wings are larger and obtuse, excavated below and the border rim is not so distinct all round as he has figured. There are two pair of oblique, lengthened grooves above each other. The opposite do not, however, join to form a coherent groove across the median field of the hypostoma, which is level between them. No maculæ. Nearer the anterior border close below the wings, there is a small roundish, dark spot. The surface of the hypostoma is granulated.

Cyphaspis Ang.

Cyph. elegantula Ang.

[Pl. III figs. 22-25.]

The hypostoma is elongated, anterior margin evenly arched, anterior wings triangular, lateral margins faintly curved as well as the posterior margin, at both sides of which there is one diminutive spine. The posterior wings are short forming a spiny process from the lateral margin. The surface of the hypostoma is smooth with a shallow transverse groove on the inferior moiety and two corresponding lateral impressions below it, one on each side. The elevated lateral borders are longitudinally striated by a few terrace lines. There are no maculæ visible. The eves consist f short hexagonal prisms ([figs. 22, 23]) nearly resembling those of Proetus.

Dalmanites Emmrich.

In this large genus the hypostoma has been figured in a great number of species. But it is only in the following that we, at least in the figures, if not in the descriptions, are able to detect the maculæ.

D. atavus Barr. Suppl. pl. 5 fig. 14.