|
“Giaura”
tortricoides
Walker
Orosa
tortricoides Walker, 1865 [1866], List Specimens lepid. Insects Colln Br. Mus., 34: 1223.
Subrita?
basigerella
Walker, 1866, List Specimens lepid. Insects Colln Br. Mus., 35: 1748, syn. n.
Sarrothripa
curvilinea
Snellen, 1879, Tijdschr. Ent., 22: 93.
Giaura tortricoides ab.
borneonis
Strand, 1917, Arch. Naturgesch., 82 (A1): 82.
Giaura tortricoides ab.
ura
Strand, 1917, Arch. Naturgesch., 82 (A1): 82.
Giaura tortricoides
borneonis
Gaede and ura
Gaede, 1937, Gross-Schmett. Erde, 11: 394.
Diagnosis. This is a small, dullish dark brown species with typical but
obscure Characoma group forewing pattern. Some specimens (including the
holotype of borneonis) have a longitudinal dark bar subdorsally in the
medial zone. Identification is best confirmed by dissection.
Taxonomic note. Tymbal organs are absent. The male genitalia are rather
narrow and elongate, the uncus slightly bulbous apically and with small setal
pads on the scaphium, suggesting a trend towards Garella (which would
have priority over Orosa) though the female genitalia are not as in
Garella, the bursa being large, ovate and finely fluted longitudinally,
lacking a signum. The valves are narrow, tongue-like, and the black-scaled
processes are longer, straight except for basal curvature, with the scales
restricted to the club-like apex. There is also a pair of hair pencils in the
eighth segment that are based on broad, disc-like pads; the hairs are relatively
short. The holotype female of
basigerella
Walker has genitalia as above, but its current synonym (Poole, 1989),
“G.”
unilineata
Bethune-Baker (New Guinea), is distinct, stat. rev.
Gyrtothripa
simplex
Hulstaert may also be a synonym, but the type has not been examined.
Geographical range. Sri Lanka, Okinawa, Andamans, Borneo, Sumatra, Flores,
Sulawesi, ?Tenimber (simplex), New Guinea, Bismarcks, Queensland.
Habitat preference. The only Bornean specimen seen is the holotype of
borneonis, taken in Sarawak by A.R. Wallace, probably in the lowlands.
Biology. The species has been reared from Hibiscus tiliaceus (Malvaceae)
in the Andamans (unpublished IIE records) and on Okinawa I. (Tominaga, 1999b).
Tominaga illustrated a smooth, slightly spindle-shaped green larva with a black
head; these live singly in a folded leaf of the plant and pupate in a pale
greyish white boat-shaped cocoon that incorporates fragments of dust or other
material. Hibiscus tiliaceus is a coastal and estuarine shrub.
<<Back
>>Forward <<Return
to Content Page |
