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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Beetles (Coleoptera) » Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles (Polyphaga) » Fungus, Bark, Darkling and Blister Beetles (Tenebrionoidea) » Antlike Flower Beetles (Anthicidae) » Ischyropalpus
Photo#99628
antlike flower beetle - Ischyropalpus
Copyright © 2007 Joyce Gross

antlike flower beetle - Ischyropalpus
Anthony Chabot Regional Park, San Leandro, Alameda County, California, USA
March 25, 2007
Size: 3.5-4mm
Found walking on a Quercus agrifolia leaf.
Chilled, posed, and released. Very uncooperative beetle without the chilling -- wouldn't stop running and running.

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antlike flower beetle - Ischyropalpus antlike flower beetle - Ischyropalpus antlike flower beetle - Ischyropalpus antlike flower beetle - Ischyropalpus
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Contributed by Joyce Gross on 26 March, 2007 - 1:49am
Last updated 30 September, 2007 - 12:14am

Moved
Moved from Antlike Flower Beetles.
… Joyce Gross, 30 September, 2007 - 12:14am login or register to post comments

Ischyropalpus sp.
A tricky genus. I suspect I. nitidulus, but your specimen is one of the forms that lack the laterally directed and lighter setae in the postbasal impression - some inidividuals of I. nitidulus do this, but it is a characteristic of some other species also.
… Donald S. Chandler, 26 March, 2007 - 10:56am login or register to post comments

 
Ischyropalpus sp.
I added another image of the elytra -- does that help at all?
I checked the UCB collection today -- I see you did many of the species determinations in this family.
The I. nitidulus specimens, numerous and from all over the state, are indeed varied in terms of the lighter setae, from very obvious to barely visible.
… Joyce Gross, 28 March, 2007 - 1:21am login or register to post comments

 
again, probably Ischy. nitidulus
This is the most variable species in the genus, unfortunately overlapping with a couple other species in color pattern/setal pattern in its extremes (as is your specimen). I. nitidulus is the most commonly taken species in CA, and by far the most commonly collected species in northern California. You did photograph a male, so if there is a tuft of setae on the posterior margin of the mesotrochanter, it is I. nitidulus (can't tell from your photo).
… Donald S. Chandler, 28 March, 2007 - 6:13pm login or register to post comments

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