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Beetle of some kind? - Pyropyga nigricans

Beetle of some kind? - Pyropyga nigricans
Santa Clara, Santa Clara County, California, USA
September 1, 2010
Size: 4mm
The revised size guess of 4mm should be pretty accurate!

Moved from Diurnal Fireflies.

Pyropyga nigricans....note th
Pyropyga nigricans....note the lack of dark lateral pronotal margins.

Thanks, Joe!
I didn't realize Pyropyga lacked the dark lateral margins, and I could not find a photo Ellychnia lacustris, so it was sort of a shot in the dark. I look forward to accumulating some good books on insect identification, that should help a little, at least.

Thanks again for the ID!

Moved from ID Request.

thanks, Joe
that's what i suspected

Just a Guess
It looks like a Black Firefly (Lucidota). I don't know if they're in California, though. Wait for an expert opinion.

Thanks, Ray!
I did think it looked a little like a tiny soldier fly, I will have to look up Luciodota, since I'm not sure what they are. I did come up with a fairly exact measurement, though. I have to revise my 6mm down to 4mm.

(I did that by focusing on a ruler, since I was at maximum focus on both objects the scale should be the same for the ruler as for the insect).

....Having just looked up Black Fireflies...
I was amazed by the similarity. The size seems very different, though, the guide page giving a range of 8 to 11mm. I am determined to go by at night and see if I can see any that are glowing. Years ago I lived in Fallschurch, VA. and I was amazed when I saw fireflies for the first time (not the black kind). I always imagined they would be a disappointment, but not to a 15 year old from California! I was pretty impressed by them. They were much larger than this one, and made quite a display.

...These black fireflies? Will they be obvious at night?

As to range, it looks like it would be very odd if one were in California. And given the size I am not too hopeful. I have seen click beetles in this same bush, so there may be something related that is a look alike.

Ellychnia lacustris! A tiny diurnal California Black Firefly!
I am not an authority on insects, but based on its size, and the shape of the pronotum (semi-elliptical, and less rounded) it seems like the only viable candidate is E. lacustris!

There does not appear to be a guide page for this species as yet...

Thanks, again, Ray for pointing me in the right direction!

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