File:Zanclognatha cruralis-obscurpiennis (See notes by Ken Childs) (14310400556).jpg
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[edit]DescriptionZanclognatha cruralis-obscurpiennis (See notes by Ken Childs) (14310400556).jpg |
Mothing Night 5/31/14 Ken wrote: "Things I learned in the USNM yesterday Volume 5. OK so I looked at drawers of both Zanclognatha cruralis and obscuripennus, and I could find no marks that always work to diagnose them. After twenty minutes of going bleary eyed, here is what I wrote in my notes: "In general, obscurpiennis is more gray brown, and it is smaller. Sometimes the light colored st line is without a shade on the proximal side, which seems to never be the case with cruralis. The st line is often bright white or luteous, but some cruralis can show this. I did not notice that the pm line was slightly wavy as is often claimed as true for obscuripennis. The pm line was equally straight in both species." If one has a collection in front of them, most fresh moths can probably be determined based on ground color, but I doubt that worn specimens can be determined. I also have the following in my notes from another time when I tried to figure out these two species: "I think all the photos of obscuripennis at MPG are incorrect except Patterson's living shot. All the others, including Vargo's spread specimens, are cruralis IMHO." The photo at CBC is correct. I'd love to hear how others distinguish this difficult pair." |
Date | |
Source | Zanclognatha cruralis/obscurpiennis (See notes by Ken Childs) |
Author | Andy Reago & Chrissy McClarren |
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23 March 2015
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