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Eupithecia Curtis

Type species: absinthiata Clerck, Europe.

Synonyms: as listed by McDunnough (1949), Inoue (1979-1980, 1988), Ferguson in Hodges et al. (1983) and Rindge (1987).

Eupithecia is probably the largest genus in the Geometridae and virtually cosmopolitan. The current species total may be in the region of a thousand. Its diversity in the Indo-Australian tropics is relatively low, and a high proportion of the species that do occur there are morphologically rather distinct from the typically Holarctic bulk of the genus.

The species are usually small, brownish to grey with regularly fasciated forewings, and hindwings that are more weakly fasciated, at least over the anterior half. The forewing discal spot is conspicuous, black, and the pale submarginal is often somewhat expanded near the dorsum to give a more conspicuous whitish mark.

In the male abdomen octavals are often present, usually running the length of the sternite when they occur, and tending to be closer together or even fused compared with Chloroclystis Hübner and allies. The uncus is small, acute. The labides are pronounced. The valves are usually simple, sometimes with an expanded saccular area. The aedeagus often has several large cornuti in the vesica.

The female genitalia have the bursa copulatrix more or less full of coarse scobination.

The larvae are variable in shape, tending towards robustness, and also show a range of largely cryptic patterning, mostly of green and brown. Dietary range is wide, and flower and bud feeding predominates (Allan, 1949; Sugi, 1987).

The first three Bornean species treated below are more or less typical of the genus, but the rest are increasingly divergent and may eventually merit separation into distinct genera. However, most were retained in Eupithecia by Inoue (1988).

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