SUBFAMILY ARCTIINAE
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Baroa siamica Hampson
   
Baroa siamica
Hampson, 1911, Ann. Mag. nat. Hist. (8), 8: 411.
   
Baroa soricina javanica Kalis, 1934, Ent. Rundsch. 51: 209.
   
Baroa javanica Rothschild, 1935, Novit. Zool., 39: 250 (junior primary homonym).
   
Baroa siamica Hampson; Holloway, 1976: 4.


Baroa siamica


Baroa siamica


Diagnosis.
The dark brownish grey, narrow forewings, blackish hindwings and speckled, bright yellow thorax distinguish this species. The male has the hind-wing dorsum much expanded, folded, paler, inverted with scent scales.

Taxonomic notes. B. soricina Snellen (Sulawesi) is sister-species to siamica. It is likely that the Kalis and Rothschild taxa are the same as the latter based his description on material collected in Java by the former. There are minor genitalic differences in material from Thailand, Borneo and Java, though externally the moths are indistinguishable. Typical siamica has much broader signa bands in the bursa copulatrix than do the females from the other three localities. Javan males have the uncus processes slightly out curved and bearing a few stout, spinelike setae apically that are not seen in Bornean material.

Geographical range. Thailand, Sundaland, Philippines.

Habitat preference. On G. Kinabalu records were made from 1200m to 1930m. Most records on G. Mulu were from lower montane forest at 1000m where the species was common, though it was also recorded in lowland dipterocarp forest on both G. Mulu and G. Api. Records from Brunei have been from lowland forest, and also upper montane forest at about 1700m (Bukit Retak, Bukit Pagon).

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