Lophoruza Hampson

Type species: vacillatrix Hampson, Sikkim.

Edwards in Nielsen et al. (1996: 296) placed this genus within a broad concept of the Catocalinae; Poole (1989) placed it traditionally in the Acontiinae. Both accounts included Eugnathia Warren and its synonyms within Lophoruza. However, in facies and male and female abdominal features Lophoruza is closer to Oruza and Zurobata. The type species is somewhat similar to Z. vacillans, but lacks the distinctive white submarginal mark at M2 on the forewing. The posterior margin of the pale costal band curves round to the apex with a slight bulge.

In the male abdomen, the eighth segment is as in Zurobata, as are the apodemes of the basal sternite. However, the male genitalia have the saccus apically rounded rather than excavate. The genitalia have the costal process of the valves as an elongate spine that extends beyond the apex of the cucullus. There is also a spine-like saccular process (with a subsidiary spine in the type species).

The female genitalia are similar to those of Zurobata except the appendix bursae is longer and strongly curled round like a shepherd’s crook.

The genus contains the type species and two montane ones endemic to Borneo, probably a sister-pair.