Location: Holt, Michigan
May 28, 2016 5:35 pm
Found in mid-Michigan in a wood pile. He was disoriented and walking in the grass, and let us move him without any issue. Looks like it has a very large stinger.
We believe we have correctly identified this female Crane Fly as Tanyptera dorsalis, formerly Ctenophora dorsalis, thanks to images posted to BugGuide where it states: “larvae live in decaying wood of recently dead deciduous hardwood trees, often in prostrate trunks that are fairly sound.” This BugGuide image illustrates the female ovipositing using her egg-laying organ that you have mistaken for a stinger. The coloring and shape of this Crane Fly likely provides the species with some protection as it seems to mimic the markings on many stinging wasps.