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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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