Berrien Explorations

by Carl Strang

The end of August found me in Berrien County, Michigan. The first stop was the Butternut Creek Fen preserve, where I met tree cricket specialist Nancy Collins. We spent an afternoon and evening seeking tamarack tree crickets, which had been found there years ago. There are abundant tamarack trees, but we were puzzled by the crickets’ no-show. None sang, and hours of arm-tiring sweeping of foliage with long-handled nets, as well as visual scanning of branches, were fruitless. We found other species, though, and provided the site owners with a list of what we observed.

When Nancy found this fork-tailed bush katydid I was hopeful that it would prove to be a rarer cousin, the treetop bush katydid, but no dice.

Oblong-winged katydids also are at the site. My new white chamber setup worked well in the back of the car.

The next day I wandered in Berrien, St. Joseph and LaPorte Counties. The best find was a new site for me, Glassman Park in Berrien County. I bypassed some nice-looking forest, then was captured by a mundane looking grassy area adjacent to the I-94 right-of-way. It proved to have some interesting grasshoppers.

Most of these proved to be pasture grasshoppers, only the second population of this locally distributed species I have found in my study region.

A second species had a much different look.

The handsome grasshopper has an even more slant-faced profile.

With a color pattern like this, the handsome grasshopper is well named.

The day was my final in Berrien County for 2018, but there is more singing insect work to be done there in coming years. That is bound to include at least one more listening stop at Butternut Creek.

 

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Recent Photos

by Carl Strang

Time to bring out a backlog of photos from the first half of August. First, a couple bumble bees from my last day on the job at Mayslake Forest Preserve.

This Bombus auricomus was huge, practically dwarfing the carpenter bees working nearby. She must have been a new queen, stocking up for her long winter wait.

This Bombus auricomus was huge, practically dwarfing the carpenter bees working nearby. She must have been a new queen, stocking up for her long winter wait.

Nearby, this yellow bumble bee Bombus fervidus also worked the wild bergamot.

Nearby, this yellow bumble bee Bombus fervidus also worked the wild bergamot.

The remaining photos are from a few days’ bouncing around in singing insect surveys.

This oblong-winged katydid peeked out through a hole in the vegetation in the late dusk at Midewin National Tallgrass Prairie.

This oblong-winged katydid peeked out through a hole in the vegetation in the late dusk at Midewin National Tallgrass Prairie.

This mottled sand grasshopper at Kankakee Sands was my first for Newton County, Indiana.

This mottled sand grasshopper at Kankakee Sands was my first for Newton County, Indiana.

Female Carolina ground crickets are distinctive with their short ovipositors. This one posed at Subat Forest Preserve, Kendall County.

Female Carolina ground crickets are distinctive with their short ovipositors. This one posed at Subat Forest Preserve, Kendall County.

Sound Ideas: Katydids that “Katydid”

by Carl Strang

The name “katydid” has come to cover a wide range of singing insects, most of whose songs do not sound anything like that name would suggest. Today I wish to share recordings of two species which seem to say something like that name. Both are common in the region. First up is the oblong-winged katydid:

Oblong-winged katydid

Oblong-winged katydid

The next recording is of a common true katydid. Though this individual has only two syllables per song, some have three to match the syllables in “katydid,” and others have 4 (“katy didn’t”) or more.

Common true katydid

Common true katydid

Ah, summer.

 

Bendix Woods Bioblitz

by Carl Strang

It’s been an unusually busy September, and there has been no time for writing in recent days. Much of that time has been occupied by field work, however, so I have a backlog of observations to share through a number of posts. Last weekend there was a bioblitz at Bendix Woods, a St. Joseph County Park in Indiana. Many of the scientists who participated in this species count could do it as a day trip. A few of us camped overnight. It was well worth it, and three posts will be needed to tell the full story.

I was there for singing insects, of course, and so needed to do survey work after dark as well as during the day. The nighttime drive along the park’s roads revealed a healthy population of oblong-winged katydids.

This one took a break from singing to seek out a new perch, his long legs moving slowly in the cooling night air.

This one took a break from singing to seek out a new perch, his long legs moving slowly in the cooling night air.

While trying to locate the katydid I ran across a couple other members of the Bendix fauna.

Gray treefrogs are abundant at Bendix Woods. I saw at least 8 individuals during the 24-hour event.

Gray treefrogs are abundant at Bendix Woods. I saw at least 8 individuals during the 24-hour event.

This female walking stick, Diapheromera femorata, was nearly 4 inches long.

This female walking stick, Diapheromera femorata, was nearly 4 inches long.

Lights set up by a Field Museum of Natural History team drew in a variety of moths, caddis flies and others.

This was a crane fly that got hung up on a support rope, not a hangingfly, as some of us hoped at first glance. The hangingflies are a group of scorpion flies.

This was a crane fly that got hung up on a support rope, not a hangingfly, as some of us hoped at first glance. The hangingflies are a group of scorpion flies.

 

This pine tree spur-throated grasshopper came to the light, and I saved it to photograph the next day. The species proved to be common in the groves of white pines which have been planted in the park to spell out “STUDEBAKER” in very large block letters that can be read only from the sky.

This pine tree spur-throated grasshopper came to the light, and I saved it to photograph the next day. The species proved to be common in the groves of white pines which have been planted in the park to spell out “STUDEBAKER” in very large block letters that can be read only from the sky.

 

I’ll close out with another, more widespread species, the differential grasshopper.

I’ll close out with another, more widespread species, the differential grasshopper.

There were two singing insect species that I met for the first time at Bendix Woods, and each will get a post of its own.

Encounters Along the Way

by Carl Strang

As another season of field research into the region’s singing insects winds down, I am starting to look back at the highlights. Some of these were chance encounters that provided new photo opportunities. For example, there was a weakened common true katydid I found on a trail at Waterfall Glen in broad daylight. I didn’t have a good photo of the species, and posed him after removing him from the hazardous trail.

Unfortunately I neglected to place his hind legs in a natural position.

Unfortunately I neglected to place his hind legs in a natural position.

Another species for which I want a better photo is the handsome trig. Some were singing on a cloudy day down in Fulton County, Indiana, and one came out in the open, but the low light resulted in a less than sharp image.

Tiny but colorful, the handsome trig lives in the southern part of the region I am surveying.

Tiny but colorful, the handsome trig lives in the southern part of the region I am surveying.

The Indiana Dunes area provided several photographs.

This oblong-winged katydid female was emitting single clicks in response to the more complex songs of nearby males.

This oblong-winged katydid female was emitting single clicks in response to the more complex songs of nearby males.

A four-spotted tree cricket had escaped from my grasp before I could photograph it. While looking for it on the ground where it seemed to have gone, my headlamp revealed something better.

A female tinkling ground cricket, only the second member of the species I have seen (despite hearing hundreds).

A female tinkling ground cricket, only the second member of the species I have seen (despite hearing hundreds).

A similar encounter came when I was trying to get a better photo of a melodious ground cricket at Indiana Dunes State Park. Digging through the leaf litter in the area from which a male’s song seemed to be coming, I turned up a female ground cricket.

When I examined the photos, though, I saw that the palps were white. This was a female confused ground cricket, another species that was singing in the area, and the first female confused I have seen.

When I examined the photos, though, I saw that the palps were white. This was a female confused ground cricket, another species that was singing in the area, and the first female confused I have seen.

One of the last places I visited this year was the Bong Recreation Area in Kenosha County, Wisconsin. The prairie area there is extensive, and has a good population of common meadow katydids.

Despite its name, the common meadow katydid is much less frequently encountered than two of its congeners, the gladiator and black-legged meadow katydids.

Despite its name, the common meadow katydid is much less frequently encountered than two of its congeners, the gladiator and black-legged meadow katydids.

There were a few broad-winged bush katydids in the prairie, but I wasn’t successful in stalking one. This Texas bush katydid had to substitute.

There were a few broad-winged bush katydids in the prairie, but I wasn’t successful in stalking one. This Texas bush katydid had to substitute.

Such encounters, sprinkled through the field season, make for good memories.

Female Oblong-winged Katydid

by Carl Strang

On Saturday morning I was riding my bike on the Prairie Path when I passed a katydid on the trail. I turned around, dug out the phone, and
took some photos. It proved to be an oblong-winged katydid.

The tip of the right forewing is damaged.

Not certain of the phone-camera’s capabilities, I took photos from both sides. I didn’t expect much from the backlit side, but later learned something from it.

With the sun shining through the wings, you can see not only that this is a female, but get an idea of the ovipositor’s shape.

It was palpating the trail surface, apparently picking up some minerals.

Insects at the Campground

by Carl Strang

The overnight campout at Waterfall Glen Forest Preserve that concludes the Roger Raccoon Club provides opportunities to observe various aspects of natural history. Last week the campground’s gravel parking lot, damp from overnight rain, apparently held a good supply of dissolved minerals, as it attracted butterflies representing at least 5 species.

Most remarkable was this giant swallowtail, a species uncommon in DuPage County but encountered regularly in small numbers at Waterfall Glen. I believe their main food plant in northeast Illinois is prickly ash, an infrequent shrub.

After dark an orchestra of singing insects filled the forest with sound. Dominant that night were large numbers of common true katydids, with smaller numbers of scattered two-spotted tree crickets, rattler round-winged katydids, and oblong-winged katydids. I needed a photo of the last species, and was able to find one singing close to the edge of the woods.

This oblong-winged katydid is holding his wings apart in singing position. Rasp and file structures on the brown portions of the two wings are rubbed together to produce the song.

As it happened, some of the kids found another male on their tent in the morning. I gave them a brief lesson about it, and took another set of photos.

Here the wings are in their normal folded position.

Some of those singing insects represented my first observations of their species this year.

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