Robber Fly

In central Ohio it’s been several weeks since we’ve had any appreciable rain. Add to that numerous days with temps greater than 90F and you have the recipe for a very dry landscape. On concrete hard ground, if it has been walked on at all, as dust rises grass seems to break apart under foot. For the grass it’s hard to believe life will return before next spring. In what seems almost a miracle, the green of most trees continues to contrast with the brown of the grass. Perhaps we should plant more trees. The water level in the reservoir near our home has held up well, and is amazingly clear with little rain to stir it up. In contrast a reservoir a little further away, that supplies water to the city, is down over six feet. Now, with it’s expanse of dry clay lake bottom between the water and shoreline trees, I tell myself it looks better if I just imagine it’s “low tide”.

Trees do their best to maintain the green canopy along the Big Darby, Battelle Darby Creek Metro Park.

It’s hard to have high expectations for seeing wildlife in these conditions. But in the middle of the day, as we cower in our air conditioned homes, life goes on. Unlike buzzards, smaller birds, that typically don’t catch thermals to the higher cooler air, are more likely to restrict their activity to the morning and evening. On the sun baked ground at noon I try to imagine what it would be like for an ant to travel any distance. I don’t see many travelers. However, as long as they have access to sources of food, the airborne insects seem unfazed by it all.

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Recently, in the morning’s relative coolness, we found ourselves walking at waters edge in the park near our home, Only a couple hundred yards into our walk a very small bird or large insect was spotted hovering, flying around, then perching on the branches of a partially dead tree. It was a Ruby-throated Hummingbird, and a “free range” one at that, how exciting. It’s always so much more rewarding to see a creature, not all that often seen in it’s natural habitat, in it’s natural habitat.

Female Ruby-throated Hummingbird takes a brake while on the prowl for insects.

Another look.

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After the hummer just disappeared into thin air, as they have a habit of doing, we wondered what the rest of our time in the park would offer up.

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New England Asters

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Actually I’ve wandered of topic a bit because I started out with the thought of highlighting the really good day we had with robber flies. They seemed to be everywhere on a recent hike of Battelle Darby Creek Metro Park. They’re not an insect that other members of the bug world are happy to see. From the perspective of other insects they are a very efficient killing machine usually waiting in ambush and going after just about anything no matter it’s defenses. Click here for more information. What made the day really good was not only seeing numerous robber flies, but seeing a number chasing and then with captured prey. At one point one loudly buzzed the top of my head as it unsuccessfully pursued a Zabulon skipper. The erratic flight pattern of the skipper undoubtedly contributed to it’s escape.

Red-Footed Cannibalfly perhaps 1 1/2 inches in length. There are over a thousand species of robber fly in the US.

Robber fly with a moth in it’s spiny, not easy to escape, clutches. Barely visible is the piercing-sucking proboscis which is used stab and paralyze it’s prey, inject liquefying enzymes, and then extract the nutritious snack.

. . . with what appears to be a grasshopper nymph.

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Morning light faintly touches Crimson-Eyed Rose-Mallow

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Robber flies weren’t the only insect on the prowl.

Unlike the robber fly, solitary wasps do not consume their prey but instead lay their egg(s) in a nest near or within an insect that has been captured and paralyzed with venom. If all goes as planned, as the larva develops the insect will be it’s food, (Donna).

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Other creatures were also eating other creatures.

Low clear water in the Scioto River made crayfish easy pickings for this Great Blue Hero, (Donna).

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Green-Headed Coneflowers with a visitor.

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Nature always seems to be generous as long as you hold your expectations in check. Often when looking for one thing other things will become part of the mix. It’s usually best to just see what you see.

An Eastern Tiger Swallowtail hides in the foliage.

When one thinks Monarch one thinks milkweed, but there are a variety of other flowers they enjoy. In this case it’s thistle.

The only Little Wood Satyr seen during a hike of Battelle Darby Creek Metro Park.

Question Mark Butterfly, Big Darby Creek Metro Park

A tiny, but very common, Pearl Crescent on a New England Aster, Griggs Reservoir Park.

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In the summer I sometimes just like to sit in my small canoe or walk slowly with no particular focus but only to let nature speak with a more all embracing voice. Realizing at that moment just how much is going on around me that I have no knowledge of, much less understanding. Perhaps a lesson in life in these trying times as I strive not to be ignorant of my own ignorance.

How you choose to look at something determines what you see.

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Thanks for stopping by.

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7 Comments on “Robber Fly

  1. Simply extraordinary!  What more can be said other than it’s hard to imagine how you and Donna are able to capture images of our incredible natural diversity over and over again.  And add such enlightening commentaries.  Just amazing.  Thanks.  Bill

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