Bioblitz Incidentals

by Carl Strang

While my main focus at the Kankakee Sands bioblitz was on observing singing insects, I also was noting other species along the way, and was interested in others’ observations of singing insects. Someone in the Purdue entomology group collected a female bush katydid, for example.

The ovipositor marks it as female, the wing proportions and head shape place it among the bush katydids (genus Scudderia).

Female bush katydids are tricky, but I’m pretty confident that this is a Texas bush katydid. The sharp bend in the ovipositor, especially the inward or upper edge, narrows it down to a very few species. A broad-winged bush katydid would have broader wings, and a fork-tailed bush katydid would have a reddish-brown rather than green ovipositor. The colors and shapes of other structures around the ovipositor, and the shape of the ovipositor itself, match those of the Texas bush katydid, which is a common species of prairies like the one where this insect was collected. I didn’t hear any singing, but in DuPage County these tend to start up later in the season.

I saw a number of little yellow butterflies that had the markings of sulphurs but were unfamiliar to me.

The little sulphur is a species associated with sandy soils, and so unlikely to turn up in my familiar DuPage County haunts.

A milkweed leaf beetle turned up in a sweep sample in one of the prairie areas.

Like so many other milkweed feeders, this species has colors of black and orange.

Alyssa noted that I had picked up a hitchhiker at one point.

This proved to be Henry’s marsh moth, a noctuid of wetlands with a broad larval diet.

One of our nets caught an impressive jumping spider.

It was a big one, marked by a white stripe across the abdomen.

Finally, I photographed a grasshopper nymph that I thought might belong to a stridulating species, but I think it is in the wrong group.

I heard a grasshopper stridulating, but never saw it, and was only guessing here.

Grasshoppers are a group I usually will need to collect for identification.

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2 Comments

  1. Urs Geiser said,

    July 30, 2012 at 10:15 pm

    For your info, a field trip led by Gary Moore found a Little Yellow butterfly at McKee Marsh (DuPage County) on 7/19/2010, in the meadow near the new wetland on the northwest side.

    • natureinquiries said,

      July 31, 2012 at 5:50 am

      Thanks, Urs,
      I have read that this butterfly can be a wanderer, and I am guessing that this was a vagrant.
      Regards,
      Carl


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