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Trichaetoides chloroleuca Walker comb. n.  
Syntomis chloroleuca
Walker, 1859, J. Linn. Soc. Lond. (Zool.), 3:183.
Syntomis detracta Walker, 1862, J. Linn. Soc. Lond. (Zool.), 6: 91, syn. n.
Syntomis basifera Walker, 1862, Ibid. 6: 92, syn. n.
Trichaeta diplaga Hampson, 1898: 58.
Trichaeta trizonata Hampson, 1898: 56, syn. n.
Trichaeta monoleuca Hampson, 1903, Ann. Mag. nat. Hist. (7), 11: 337, syn. n.
Geryx dohertyi Rothschild, 1910, Novit. zool., 17: 430, syn. n.
Trichaeta biplagiata Rothschild, 1912, Novit. zool., 19: 123, syn. n.
Trichaeta detracta Walker; Seitz, 1912-1913: 67.

Trichaetoides chloroleuca (Peninsular Malaysia)

Trichaetoides chloroleuca

Trichaetoides chloroleuca

Trichaetoides chloroleuca

This species is variable. The forewing has a small basal patch posterior to CuA2 and a large distal patch that represents the fusion of the two seen in all previous species; in some variants these are almost or completely separate. The hindwing is usually without ornament, occasionally with a small central white spot. In f. diplaga Hampson the transparent patches are tinged yellowish. In the typical form (also monoleuca Hampson) the white patches can resemble those of divisura though the distal ones are usually united, and the abdomen can be ringed white basally and at two thirds; this form is characteristic of Singapore and Peninsular Malaysia. Four forms are illustrated above. The species is best distinguished by the genitalia. In the female the ostium is flanked by a diagnostic pair of flanges, with a suboval zone of scobination just posteriorly in the lamella postvaginalis. The features of the male have been discussed in the account of T. separabilis.

Taxonomic notes. All the diverse named forms are here brought into synonymy through sharing the diagnostic features of the male and female genitalia mentioned. The sister-relationship with separabilis has been discussed in the account of that species. Trichaeta quadriplagata Snellen (1895, Dt. ent. Z. Iris, 8: 129) may also be a synonym.

Geographical range. Borneo, Sumatra, Singapore, Peninsular Malaysia.

Habitat preference. Most material seen is from lowland localities, but the species has not been encountered in recent surveys.

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