Michael J. Bolton

The Ohio Environmental Protection Agency, (Retired)

The oyster Ostrea johnsoni Aldrich was described in 1886 from the middle Eocene of Alabama and Mississippi, U.S.A. Since then it has been placed in the genera Alectryonia and “Lopha”. Examination of the shell morphology using recent advances in supraspecific oyster taxonomy has found O. johnsoni to be consistent with the genus Nicaisolopha Vialov,...

Faunal stuthes of the Tamiami and Caloosahatchee formations (upper Pliocene to lower Pleistocene) in southern peninsular Florida have revealed a new crassostreine oyster, Striostrea paucichomata Bolton new species. Although similar in appearance, this bivalve differs from Crassostrea virginica (Gmelin, 1791) by having weakly developed chomata (not...

Paratanytarsus longistilus Bolton, Ekrem, Sublette, and Sublette, new species is described for the adult male, pupa, and larva stages. This species has an unusual combination of characters that does not neatly place it into any genus as currently defined, but appears to best fit into the genus Paratanytarsus. The new species conforms to the current...

The larval and pupal exuviae of Chasmatonotus unimaculatus Loew were collected from soil samples from which two adult males emerged. The collection site was located in the Hocking Hills area of southwestern Hocking County, Ohio within the relatively sheltered, cool, and moist conditions of a wooded ravine which has a spring fed stream flowing throu...

New state records and additional locations for rarely collected species are reported for Ephemeroptera (mayflies), Plecoptera (stoneflies), Trichoptera (caddisflies), Coleoptera: Elmidae (riffle beetles), and Diptera: Chironomidae (chironomids, non-biting midges, midges).

Background We provide volume II of a distributional atlas of aquatic insects for the eastern USA state of Ohio. This treatment of stoneflies (Plecoptera) is companion to Armitage et al. (2011) on caddisflies (Trichoptera). We build on a recent analysis of Ohio stonefly diversity patterns based on large drainages (DeWalt et al. 2012), but add 3717 n...

Current Ohio stoneflies, microcitations of known works with names used and count of species. Names reconciled in text.

Biomonitoring of Ohio streams by the Ohio Environmental Protection Agency has found new state records for the Ephemeroptera (mayflies): Baetis brunneicolor McDunnough, Iswaeon anoka (Daggy), Paracloeodes fleeki McCafferty and Lenat, Plauditus cestus (Provonsha and McCafferty), and Rhithrogena manifesta Eaton; the Plecoptera (stoneflies): Pteronarcy...

As the result of an 8-year (1993-2000) field survey of aquatic insects by the Ohio Biological Survey, 36 new state records of caddisflies (Insecta: Trichoptera) have been determined. Two species of caddisflies are described for the first time from the family Hydroptilidae: Hydroptila danieli Harris and Armitage, new species and Hydroptila paraxella...

Freshwater mussels (Unionidae) were collected from the Olentangy River upstream from the city of Delaware, Delaware County, Ohio to verify the existence of a population of Cyclonaias tuberculata (Rafinesque), the Purple Wartyback Mussel. Eleven live specimens of C. tuberculata were found, including two juveniles, in the second and third riffle comp...

Chironomidae (Diptera) were collected from Cedar Bog, Champaign County, OH. Cedar Bog is an alkaline fen formed by numerous springs that collect to form Cedar Run. An attempt was made to collect all life history stages and to rear late instar larvae and pupae under laboratory conditions. Ninety-six taxa were collected from the fen. Twelve taxa were...

Thesis (M.S.)--University of Akron, 1983. Includes bibliographical references (leaves 42-44).