See notes for Cypa Walker. Both taxa in this genus have the uncus bifid
and the valve with an apical spur-like process. The costal margin of the
hindwing is sinuous.
The life history of the type species was described by Bell & Scott
(1937). The head is elongate-triangular, pale green, the apex of each
dorsal lobe reddish. The body is green or bluish green, darker than the
head, with a dorsal stripe of black dots over the thorax, sometimes
extending posteriorly as a series of quadrate patches in the centre of each segment, always present on A1 where it is surrounded by
yellow. There is a large subdorsal white patch on each side of A4, lined
dorsally by black tubercles. There are other, variable yellow subdorsal
patches. There are yellow oblique stripes, defined sharply above by brown.
The horn is green, large, fringed above and below by tubercles, slightly
The host-plant recorded was Quercus (Fagaceae).
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