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Epyaxa subidaria (Subidaria Moth)

,<p class="MsoNormal">Epyaxa subidaria and sodaliata are common and widespread species that can be difficult to distinguish.&nbsp;</p> <p class="MsoNormal">&nbsp;Epyaxa subidaria are generally larger, lighter and a little browner than E. sodaliata, but that does not help much in identifying&nbsp;a&nbsp;photo.&nbsp;&nbsp; Both species are variable in their forewing patterns.</p> <p class="MsoNormal">&nbsp;For both species, males have branched antennae and females have linear antennae. Males of both species generally have lighter forewings than the females.</p> <p class="MsoNormal">&nbsp;Both species have a transverse band across the centre of the forewing that is wholly or partially dark.&nbsp; In Epyaxa subidaria males it usually contrasts more with the inner and outer lighter areas of the wing than it does in E. sodaliata.</p> <p class="MsoNormal">&nbsp;Females of E. sodaliata are often almost black (although the central band is still present).&nbsp; The boundary between the central band and the outer forewing in E. subidaria females is often a conspicuous broad light wiggly line with a fine dark line in the middle of it.&nbsp; ( For E. sodaliata females, this line usually only appears in part at the costal end, but&nbsp;it&nbsp;is occasionally&nbsp;more&nbsp;prominent.)</p> <p class="MsoNormal">&nbsp;The Moths of Victoria vol3 CD illustrates another way of distinguishing the species, based on the structure of the transverse lines on the forewing.&nbsp; A key point is that for both sexes the&nbsp;boundary line between&nbsp;the central band and the outer forewing&nbsp; is perpendicular to the costa in E. sodaliata, but&nbsp;forms a clear acute&nbsp;angle with the costa in E. subidaria. (It isn&rsquo;t always easy to judge the angle in a single photo,&nbsp;and it is slightly acute on some E. sodaliata specimens.)</p>

Epyaxa subidaria is listed in the following regions:

Canberra & Southern Tablelands  |  South Coast  |  Barwon South West


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