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Phengodes plumosa - Phengodes - male

Phengodes plumosa - Phengodes - Male
Apalachicola National Forest Whitehead Lake Campground, Liberty County, Florida, USA
March 29, 2006
Size: 14 mm
Very interesting antennae. Plumose and feathery. Attracted to UV lights.

Images of this individual: tag all
Phengodes plumosa - Phengodes - male Phengodes plumosa - Phengodes - male

Moved from Phengodes plumosa. I don't think this is plumosa, which Wittmer says has the head almost always yellowish.

Moved from Glowworms.

basis of this ID?
I've been looking through the literature on this group. I have looked at the 1970's key by Wittmer, and it is all based on microscopic characters. I cannot find any documentation that members of this genus can be assigned to species based on photographs. Maybe I'm missing something?

you're correct
As far as I can tell, aside from some cases where coloration and location can really help narrow down species, it appears measurements of the interocular distance and length of antennal segments 4 to 6 are often needed.

I wonder
Do bioluminescent insects, such as the female Phengodes, emit any UV light?

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