Diarsia flavostigma Holloway

Diarsia flavostigma Holloway, 1976: 7.

Diagnosis

This and Diarsia nigrosigna Moore have very similar forewings of pinkish grey with a more orange tone over the anterior half and within the pale stigmata. Diarsia nigrosigna Moore is larger, with a diagnostic black dot posterior to the orbicular stigma, which is less conspicuously pale.

Taxonomic notes

This is probably the sister species of dimorpha Wileman & West from Luzon, though it has the dorsally directed harpe process more slender, and the other process is much shorter.

Geographical range

Borneo, ?Sumatra (Holloway, 1976).

Habitat preference

The species is only known from G. Kinabalu, taken at 2110m (a few) and 2600m (many)

Taxonomic Note

Varga & Ronkay (2007) have reviewed the Holarctic species groups of the genus Diarsia Hübner, but only placed two of the Bornean species into the groups they recognised: stictica Poujade into the stictica group, with a sister‐species, carnipennis Chang, endemic to Taiwan; nigrosigna Moore into the nigrosi**gna group with postpallida Prout (Oriental‐subtropical) and deparca Butler (Manchurian‐Pacific). The other five species were unassigned, though it was suggested in Part 12 that several other Indo‐Australian species in Sundaland and extending east to Seram with bipectinate antennae in the male, including ochracea Walker and borneochracea Holloway, might be related to stictica, and that flavostigma Holloway and most of the other species extending east to Australasia might be allied to nigrosigna. The Kinabalu endemics ba**rlowi Holloway, banksi Holloway and serrata Holloway appear to have no close relatives. The taxon pseudobarlow**i Holloway (Varga & Ronkay, 2007: 179) is unknown to this author and should be treated as a nomen nudum!

Genitalia: