Tag Archives: gregarious

Ectoparasitic wasp larvae

Here are photographs of a clump of ectoparasitic larvae I found attached to a small caterpillar. I think they are wasps in the genus Euplectrus (Eulophidae). Females apparently inject hosts with a venom that prevents the caterpillar from molting, thus preventing the … Continue reading

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Eastern boxelder bugs

Below are some photographs of Eastern boxelder bugs (Boisea trivittata) I took recently at the John Heinz National Wildlife Refuge in Tinicum, Pennsylvania. These true bugs are fun to watch — richly colored, morphologically variable (they go through numerous instars), … Continue reading

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