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Calleida, but what species? - Lebia viridipennis

Calleida, but what species? - Lebia viridipennis
Framingham, Middlesex County, Massachusetts, USA
September 24, 2007
Looks like C. punctata but the abdomen is such a bright orange, unlike any other photos I see in the guide. Found on a low-growing aster in forest understory.

Thank you!
Thank you, both of you, for weighing in on this. I am always amazed at how much I learn from this site.

Unfortunately, as is often the case, the beetle was wily and I did not get any good shots that would properly display the shape of the pronotum.

Moved from Calleida.

Lebia viridipennis
correct tribe, but this is Lebia viridipennis. note how wide and short the pronotum is compared to Calleida.

Pentagonicini : Pentagonica picticornis
While image does appear like Lebia and coloration of L. viridipennis, I'm bothered by the really short but wide shape of pronotum which shows characteristic blunt mid-lateral angles and no prominent flattened hind angles. Pronotum of Lebia is not so narrowed toward hind angles which are sharp and flattened. My interpretation of image pronotum would better fit Pentagonica picticornis. Normally the separation of Pentagonica vs Lebia would be obvious by microscopy. This is another example where apparent color and shape in a distant field photograph leaves much to the imagination.

respectfully disagree
First, I should say I've never actually seen (or even knew about) Pentagonica picticornis, although it is listed from New Jersey so perhaps there's yet hope for me. There is a photo on the Canada web site here.

But two characteristics of L. viridipennis I believe we can see in the photo: legs with piceous knees, and green elytra. From the descriptions in Downie and Arnett it appears like P. picticornis has legs entirely yellow and black elytra.

But as the more experienced one Peter, I'll defer to your final judgement. :)

Lastely, from a quick check of the other L. viridipennis in the Guide, it appears to me like they all align with these chacteristics. But it might be good if you gave them a look also.

Yes, Lebia viridipennis
Tim, I have specimens of both Pentagonica picticornis (4mm) and Lebia viridipennis (5.5-6mm) in my reference collection. The differences in pronotal shape and coloration are obvious when specimens are examined together. Your points about color differences are correct and compelling. Regrettably in this instance, I had let shape over color guide me as Pentagonica has such a unique pronotal outline as suggested by the image -- a deception created by camera angle perspective. Thank you for forcing me to think twice about this one!

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