More Mayslake Lepidoptera (and others)

by Carl Strang

A couple days ago I updated the dragonflies and damselflies I have been finding at Mayslake Forest Preserve in my first year there. Today I’ll continue with newly sighted butterflies and a moth. These include black swallowtails, both female

black swallowtail female b

and male.

Black swallowtail male b

I have not seen larvae, but there are plenty of Queen Anne’s lace and other members of the family Umbelliferae that are potential food plants. When I saw the following hairstreak, I made sure to get photos.

Banded hairstreak b

This proves to be a banded hairstreak. A year ago I was alerted by Forest Preserve District invertebrate biologist Tom Velat to watch for southern or oak hairstreaks. That alert was prompted by the following photo I took of that species at Fullersburg, which I failed to identify correctly.

Southern (oak) hairstreak b

The hairstreaks require a close study of patterns in the lines of dots beneath both wings, and the arrangement of colors in the corner of the hindwing. I have one moth to share this time, the reversed haploa.

Haploa reversa Reversed haploa b

Haploa is a genus of tiger moths. I’ll close with three insects of milkweeds. The first is a familiar butterfly, the monarch, here visiting a purple coneflower in Mayslake’s Historic Garden.

Monarch Echinacea b

Monarch caterpillars feed on the leaves of milkweeds, in the process sequestering defensive poisons which then protect the specialist insect from its own consumers. Other insects have solved the milkweeds’ chemical challenge, and gone on to advertise their own poisonous status with bright colors. Two species in this category which recently have appeared at Mayslake are the red milkweed beetle

Red milkweed beetle b

and the large milkweed bug.

Large milkweed bug b

I’m sure I have barely scratched the surface of Mayslake’s Lepidoptera.

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