Quadricalcarifera nigribasalis Kiriakoff

Stauropus nigribasalis Wileman, 1910, Entomologist 43: 289.

Quadricalcarifera nigribasalis Wileman; Kiriakoff 1968: 119.

Quadricalcarifera nigribasalis tropica Kiriakoff, 1974: 388.

Diagnosis

See Quadricalcarifera alleni sp. n.

Taxonomic Notes

This and the next species belong to a section of the genus with the valve of the male genitalia without a terminal spur and with the uncus very reduced (as two setose lobes), in contrast to the heavy, single, central gnathal process.

This subspecies differs from the typical race slightly in the shape of the valve, the aedeagus is curved apically rather than straight.

Geographical range

Taiwan, S. China, Sumatra, Borneo.

Habitat preference

The species has only been taken in upper montane forest in Brunei, at 1670 m on Bukit Pagon and at 1618 m on Bukit Retak. Records in Holloway (1976) refer to the next species.

Biology

Little is known of the biology of the numerous Sundanian Quadricalcarifera species, though Japanese species have been reared from various Fagaceae and from Styrax in the Styracaceae (Sugi & Nakatomi 1969).

Genitalia: