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Photo#466997
black beetle with 2 orange stripes - Ellychnia megista

black beetle with 2 orange stripes - Ellychnia megista
Just south of Cambria on trail heading out to bluff, San Luis Obispo County, California, USA
October 22, 2010
Size: one inch about
This beetle was the only one around. The black was very black, and the two orange stripes on each side of its head were quite striking. Thanks for ID-ing it for me....Denise

Images of this individual: tag all
black beetle with 2 orange stripes - Ellychnia megista black beetle with 2 orange stripes - Ellychnia megista

Moved

Moved
Moved from Pyropyga nigricans.

Definitely Ellychnia
... based on size, habitus and second antennomere longer than wide. This is probably E. californica.

 
thanks a lot for checking these

Moved tentatively
Moved from ID Request.

 
the black firefly
Thanks so much for ID-ing it. One thing I don't understand. This insect was about one inch long and all the info I've looked up on this guy puts the maximum size at 8.5 mm.....which is way smaller. Maybe this was a gargantuan one !?

 
How measured?
How did you measure size? People tend to overestimate the size of insects using only the eye.

 
this Pyropyga nigricans
This insect was at about my eye-level ( I'm 5'6" ). I didn't measure it with a tape measure or ruler as I don't carry those with me....plus this insect would have flown off had I come any closer. However, I am fairly good at estimating sizes of insects....and it was definitely larger than one centimeter. ( I'm very familiar with the metric system.) And this type of firefly is recorded as being max 8.5mm as I understand it. SO...although one's eye is not the best of measuring instruments.....my first thumb joint from the nail equals about one inch. Hence estimating one inch is not hard. Plus the dead flowerhead had a diameter of just over one inch.

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