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Photo#364519
mildew-eating lady beetle - Psyllobora parvinotata - male - female

mildew-eating lady beetle - Psyllobora parvinotata - Male Female
St. Petersburg, Pinellas County, Florida, USA
February 26, 2009
Size: 2-3 mm
Another view (see BG photo #364406 by Carol Wolf) of the copulating pair of mildew-eating lady beetles. This view shows the ususual mandibles used to "rake" in mildew. There was a good-sized colony of these beetles at this location. What is the significance of the orange vs white pronotum shown by some individuals of this species? Is this a subspecies distinction?

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mildew-eating lady beetle - Psyllobora parvinotata - male - female mildew-eating lady beetles - Psyllobora parvinotata - male - female

Psyllobora pronota
The immaculate brown pronotum is unique to P. parvinotata among North American Psyllobora, but as you can see it's not shared by all of them. There hasn't been a subspecies division, although your point about the localities and photos of same-pronotum mating pairs are suggestive.

I think Psyllobora are understudied, because eating mold isn't as interesting to economic entomologists as eating aphids (or eating plants, like the squash and bean lady beetles). It's great to see good, clear photos of these little beetles, and I hope there'll be more taxonomic work done on them someday!

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