Journal archives for March 2020

March 16, 2020

Feltia jaculifera features

I struggle to explain this feature, so here is a picture with the Wshown. It can be darker and smaller than this one, but this shape in the Terminal area is an indication of Feltia jaculifera. Photo courtesy of https://www.cbif.gc.ca/SpeciesBank/spp_pages/noctuoidea/jpgs/image_e.php?image%5B%5D=110670.jpg%2CFeltia+jaculifera

110670

Posted on March 16, 2020 21:30 by mamestraconfigurata mamestraconfigurata | 2 comments | Leave a comment

March 17, 2020

Feltia herilis features

Felti herilis is one of the easier spp of Feltia to identify. Orbicular spot is somewhat elongated, and is the the same shade as costal strip. The central light strip basically ends at reniform.

Feltia herilis
Photo courtesy of CBIF (https://www.cbif.gc.ca/SpeciesBank/spp_pages/noctuoidea/jpgs/image_e.php?image%5B%5D=110676.jpg%2CFeltia+herilis)

Posted on March 17, 2020 19:37 by mamestraconfigurata mamestraconfigurata | 0 comments | Leave a comment

March 19, 2020

Mythimna oxygala

Mythima oxygala is the only other species in this genus in North America. Very similar to , but the arrangement of the three black dots is characteristic.
Mythimna oxygla

Photo courtesy of CBIF - https://www.cbif.gc.ca/SpeciesBank/spp_pages/noctuoidea/jpgs/image_e.php?image%5B%5D=110436.jpg%2CMythimna+oxygala

Posted on March 19, 2020 17:00 by mamestraconfigurata mamestraconfigurata | 1 comment | Leave a comment

March 21, 2020

Feltia subgothica/tricosa

These are the two most difficult species to differentiate in the Feltia genus. The most reliable method is to look at the male antennal seate. The difference can be seen here - https://www.ndsu.edu/pubweb/~gefauske/ndmoths/names/10674.htm - and these features can be seen on iNat with high image magnification, but not always.
Bugguide has a somewhat confusing description (https://bugguide.net/node/view/10466). Through my observations I think this is how it works - F. subgothica has a less 'furry' antenna, is overall a lighter looking moth, and has this appearance.
110674

F. tricosa has longer setae, is darker, and looks like this.
110675

This is only a rough guide. Due to variation and wear, it may not be possible to identify these moths visually, in which case (after Feltia jaculifera & F. herilis have been ruled out), genus Feltia would be the prudent option.

Photos courtesy of CBIF.

Posted on March 21, 2020 16:43 by mamestraconfigurata mamestraconfigurata | 0 comments | Leave a comment

Peridroma saucia

An exceedingly variable moth. Many resemble this image, but they range in colouration from brick red to this. Main features are 7 black marks along costa, large round orbicular spot, and a fairly prominent, double AM line.

Peridroma saucia

Photo courtesy of CBIF (https://www.cbif.gc.ca/SpeciesBank/spp_pages/noctuoidea/jpgs/image_e.php?image%5B%5D=110915.jpg%2CPeridroma+saucia)

Posted on March 21, 2020 20:00 by mamestraconfigurata mamestraconfigurata | 0 comments | Leave a comment