The Papua Insects Foundation
The Tigermoths (Erebidae, Arctiinae, Arctiini) of Papua Indonesia
by Rob de Vos
Spilosoma mastrigti De Vos & Suhartawan, 2011
[Spilosoma mastrigti De Vos & Suhartawan, 2011] (holotype: Abmisibil, in ZMAN)
The species is variable in the ground colour and pattern of the forewings in the male which in typical specimens usually is sooty brown with brown sinuous transverse lines. In pale specimens the wing colour can be pale buff with some dark scaling and inconspicuous transverse lines, the black costal patches however being very distinct. The genitalia of such forms show no significant differences with typical mastrigti to consider it to be another species. However, to avoid possible future misidentification in the type series such pale forms are excluded from the types.
STATUS: In the Central Mountains around the Baliem Valley the species is quite common. On other localities, including a few in PNG, it is a rare species.
PAPUA LOCALITIES: New Guinea: Abmisibil, Mt. Goliath, Ilaga, Langda, Mokndoma, Molbakon, Pass Valley, Timeepa, Walmak. Details in gazetteer.
EXTERNAL DISTRIBUTION: Papua New Guinea.
DATA SOURCES: BMNH, CMWM, KSP, RMNH, ZMAN. Literature (see below).
Vos, R. de & D. Suhartawan, 2011. The Spilosoma group of species from New Guinea and adjacent islands (Lepidoptera: Erebidae, Arctiinae, Arctiini). In: Telnov, D., 2011. Biodiversity, Biogeography and Nature Conservation in Wallacea and New Guinea, Vol. I: 299-333.