Caterpillar3952 - Petrophora subaequaria

Moved

Moved from Geometrid Moths. This looks exactly like the image in Wagner's Geometroid caterpillar book, pg 116, so we'll move it there.

… john and jane balaban, 11 March, 2014 - 7:40pm

Thanks

Nice, way to stick with this one! The description given seems to be perfect as well. Too bad it's not on a fern but I'll bet it was in fact close to ferns and it jumped to where I photographed it.

When you mentioned this species before, I tried googling it without success. I wasn't aware that Wagner had a Geometroid caterpillar book but now that I know, I see that archive.org and hathitrust.org have it online.

… Steve Nanz, 12 March, 2014 - 4:17am

Moved

Moved from Butterflies and Moths.

… Steve Nanz, 5 March, 2014 - 3:13am

We looked at this with Laci and we can only see one pair

of abdominal prolegs, on A6, pointing toward Geometridae. We would suggest Petrophora subaequaria, feeds on ferns. Was there bracken nearby?

… john and jane balaban, 4 March, 2014 - 8:03pm

Yes

Yes, I know there would have been ferns close by but it was so long ago that I don't recall how close. I was in a grassy area and the closest fern may have been inches away or as much as 50 feet away.

Anyway, I'm pretty sure I should move this back to Geometridae.

[Edit - I had to refresh my memory as to why I thought it could be in or close to Caenurgina. My thinking was that because of the angle we might not be able to see prolegs on A5 but I'm pretty sure there aren't any to be seen.]

… Steve Nanz, 5 March, 2014 - 3:12am

Moved to Butterflies and Moths (Lepidoptera)

Moved from Geometrid Moths.

I can't see all the prolegs and this looks suspiciously like some of the Caenurgina images in the Guide.

… Steve Nanz, 6 January, 2012 - 3:36am