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Tiracola
Moore
Type species: plagiata
Walker.
This
genus was reviewed for Australasia by Holloway (1979: 406). An account of the
New World representatives was published by Todd & Poole (1980a).
Most taxa have
facies generally as in the type species, described below. A number of features
of the male genitalia unusual amongst the hadenines, noctuines and more typical
trifines (as discussed in the introduction) are shared between the New World T.
grandirena Herrich-Schaeffer and the Indo-Australian taxa. They are:
coremata from the base of the valve, which has the sacculus elongate,
rectangular, and the cucullus reduced; the uncus is very short, broad; the
aedeagus vesica is elongate, with a subbasal brush of somewhat deciduous spines
and, just distal to it, a lateral lobe that may also bear spines apically; a
long, spiral appendix bursae that arises from the ductus bursae just below where
it opens into the bursa (in plagiata there is a short signum, a scobinate
band).
In Indo-Australian
taxa the basal abdominal trifine hair pencil is replaced by a double corema;
this was not mentioned by Todd & Poole. The corema on the valve is double in
Indo-Australian taxa. The Neotropical species has the cucullus modified into an
upturned spine, and has a less reduced harpe structure with a typically trifine
harpe overlapping a process from the valve costa; in Indo-Australian taxa the
process from the valve costa is not apparent.
The larva of the
type species or its close Bornean relative is described below.
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