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Sinna
Walker
Type
species: calospila
Walker, Java.
Synonym: Teinopyga
Felder (type species
reticularis
Felder = extrema
Walker, China).
All species have a ground colour of satiny white or, less commonly, pale yellow,
the forewings marked with a characteristic reticulated pattern variably in red,
yellow and black. The forewing areole is short, with the radial sector veins
branching off distally from it: ((R2 (R3, R4)) R5).
In
the male abdomen the tymbal structures are narrow, elongate, rather widely
separated (Fig 364). The eighth tergite has strong apodemes and the sternite is
broader, triangular, the basal margin with a deep, wide, angular cleft (Fig
370); the membrane between A7 and A8 is lengthened. The genitalia have a short,
slender, hooked uncus set on a very long tegumen. The valves are similarly
elongated, parallel-sided, with a prominent hair pencil at the base externally.
The aedeagus is slender with a few small cornuti in the vesica.
The female genitalia are small, flimsy, the ductus short, the bursa pyriform
with floccular thickening and some sclerotisation in its basal half.
All species are Oriental, and the genus is not known east of Sundaland.
S. extrema Walker in Japan (Sugi, 1987) has a larva somewhat
similar to that mentioned for Ariolica that has only been recorded as
feeding on Juglans (Juglandaceae).
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