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Species Page - Trichordestra rugosa
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scientific name    Trichordestra rugosa    

common name     Wrinkled Trichordestra

Restricted to bogs and fens.

The Alberta specimens were collected on June 20, 2002.

A stocky medium-size purple-grey and maroon moth. There are black markings before the orbicular, between the orbicular and reniform and below the reniform, and a prominent, wedge shaped, black claviform spot. No W-mark on the subterminal line, instead a series or 3 or more small prominent dark spots, which are diagnostic. Hindwings fuscous with a prominent discal cresent and a broad black terminal band. See also T. tacoma and T. legitima.

life history
According to Handfield (1999), females are diurnal and visit flowers during the day, whereas the males are nocturnal and come to light. There is a single annual brood.

Rare & local.

diet info
The only reported hostplant appears to Pyrus melanocarpa (Handfield, op. cit.).

An eastern species, recorded from Newfoundland west to central Alberta where it has been found in single bog-fen complex near Ft. Assiniboine.

The only Alberta record is a series of 6 collected in a larch fen near Fort Assiniboine by Doug Macaulay. This is the only record of rugosa from east of Ontario. The illustrated specimen is from New Brunswick.

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References (1)
Specimen Info
There are 13 specimens of this species in the online database
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Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (13)
Related Links
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