Morrison's Pero - Pero morrisonaria

WS: ~ 35 mm. Brown forewing with darker speckles.

Habitat: Attracted to a light in a semi-rural area. It wasn't flying well. I snuggled it in my hand for a few minutes hoping the warmth would help, but it still struggled. I went back out to check on it a few hours later, and it was still in the spot where I had left it. But, it was gone this morning - either revived, eaten, or blown away, I don't know.

*This moth is very similar to Pero honestaria, but I think Pero morrisonaria is more likely?

comments (3)

Gary B

Lion

These two species are a real headache to figure out. In MN at least Pero morrisonaria is more likely than Pero honestaria which is not found in the state according to MPG's map although I read a moth report (2009) from the MN-DNR where it was included on the checklist for six state parks. Posted 6 years ago
1. Christine Young
  
  Lion
  
  Definitely so hard to differentiate! I went back and forth between the two so many times before settling on P. morrisonaria - partly because it is more common. But, I'm still not 100% confident. Posted 6 years ago
2. 1. Gary B
    
    Lion
    
    Same here. Posted 6 years ago

The Morrison's Pero

''Pero morrisonaria'', Morrison's pero, is a moth of the family Geometridae. It is found from Newfoundland to British Columbia, and coast to coast in northern United States, south in the east to South Carolina, south in the west to California.

The wingspan is 34–40 mm. The moth flies from May to July depending on the location.

The larvae feed on ''Abies balsamea'' and other firs, like ''Pseudotsuga menziesii'', hemlock, pine, spruce and tamarack. Furthermore, they have been.. more

Info 5 0

Similar species: Moths And Butterflies

Species identified by Christine Young