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Microtomus luctuosus

Microtomus luctuosus
Falcon State Park, Starr County, Texas, USA
July 6, 2007
Size: 20-25 mm
On sidewalk outside visitor center in blazing midday sun. Overexposed image had to be darkened to show detail. Distinguished from Microtomus purcis by lack of red on hind femora.

I wonder how valid that species name is, and how the specimen was determined. Just curious, after learning that the 'two' Melanolestes species are really just one with a color variation.

In your comment
here you mention the red band on the hind leg as an identifying feature of Microtomus purcis. This specimen has no red on the hind legs, and neither do either of the photos of the type specimens of M. luctuosus I linked to on the Guide page. There's only two species of Microtomus in North America listed at, so I don't know of any others to consider.

i think you're right, Robin, and vote for luctuosus...
...based on the type specimen shown at (BBcoded links sometimes fail)

You're getting lots of new species, Robin.
That's what's so appealing about collecting (images or otherwise) in a new habitat.

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