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Photo#311255
Sixeonotus albicornis - Sixeonotus insignis

Sixeonotus albicornis - Sixeonotus insignis
Chantilly, Fairfax County, Virginia, USA
July 28, 2009
Size: ~ 3 mm
Attracted to outdoor light. Although the records of S. albicornis given by PBI does not include my area, it is determined as S. albicornis since its hind femora are entirely white without brownish areas.

Images of this individual: tag all
Sixeonotus albicornis - Sixeonotus insignis Sixeonotus albicornis - Sixeonotus insignis Sixeonotus albicornis - Sixeonotus insignis

Moved

Questions
How does it differ from S. insignis?
Does this help with mine?

 
Yours has the same problem with mine.
From the key and the descriptions of Blatchley, S. insignis has brownish rings on its middle and hind tibiae. It seems your bug has none, so it could be S. albicornis instead of insignis. But, the reason why I cannot say so is its distribution. VA is sometimes a southern state, but NJ is not. Finally, I cannot deny my ID of my bug may be possibly wrong. ^^

 
But
doesn't Knight say "Antennae and legs uniformly pale; membrane with basal half black...insignis"
http://research.amnh.org/pbi/library/2339_1.pdf

Legs "uniformly pale" vs "brownish rings on its middle and hind tibiae"?

 
Knight's key (on the same page) says another word.
According to his key, both insignis and areolatus have "legs entirely pale with brownish areas on hind femora."
Anyway, I followed Blatchley's key in determining my bug's ID because Blatchley described 6 species including insignis while Knight only 3 species and because the quoted phrase does not match with my bug.

 
In view of membrane,
both albicornis and insignis have membranes with apical half pale, so it seems the color of the membrane is not a distinguishing feature.

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