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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » True Bugs, Cicadas, Hoppers, Aphids and Allies (Hemiptera) » True Bugs (Heteroptera) » Pentatomomorpha » Leatherbugs (Coreoidea) » Leaf-footed Bugs (Coreidae) » Coreinae » Hypselonotini » Squash Bugs (Anasa) » Squash Bug (Anasa tristis)
Photo#304543
Squash bugs at egg hatch - Anasa tristis
Copyright © 2009 Abigail Parker

Squash bugs at egg hatch - Anasa tristis
Philadelphia County, Pennsylvania, USA
July 13, 2009
Size: 2.5 mm
First-instar squash beetles, just out of the eggs. Legs and antennae are black already; they're red when the nymphs first emerge, but darken quickly.

Eggs at hatch are deep red and translucent, like these. More recently-laid eggs are orange to brown and have more opaque, pearlescent appearance.

Plant: Summer squash (Cucurbita pepo)
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Contributed by Abigail Parker on 15 July, 2009 - 2:22pm

So,
The first instar nymphs are very different from the following instars. I was beginning to wonder whether there were two different species. I guess that such changes in appearance are not uncommon.
We'll have to add some of your comments to the guide page, otherwise many guide visitors would miss them.
… Beatriz Moisset, 8 August, 2009 - 6:59pm login or register to post comments

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