Apoid Wasps (Hymenoptera: Apoidea) of Ohio

This project is the result of an independent study that sought to use digitized museum data to generate high-quality occurrence-based species checklists. The checklist is accompanied by a key to apoid wasp genera of Ohio based upon the species records in the aforementioned checklist. 137 species in 50 genera and 3 families are included.

Abstract: Digitized museum records of wasps of the hymenopteran superfamily Apoidea were compiled and analyzed to obtain a count and list of species occurring in Ohio. A checklist including all apoid wasp species reported in Ohio is given. A key to included genera is also given.

Keys to the Genera of Eastern United States Symphyta v 1.0

This project was originally intended to serve as a proof of concept for a unified, updatable set of keys for insects over a large geographical range. Keys to the genera of sawflies and woodwasps of the eastern United States are given, and species keys are given for particularly-small taxa. Small profiles of taxon diversity, biology, and identification are also given. A checklist of genera is provided at the end.

The project is still in its early stages; version 1.0 lacks numerous components, but otherwise comprises a complete set of keys to all established symphytan genera at the time of publication. Planned future updates are included in the article.

Excerpt from Nastasi 2019, Keys to the Genera of Eastern United States Symphyta v 1.0

Field Guide to Anaxyelidae and Cephidae of the Continental United States

A field-guide-style article detailing the single anaxyelid species and fifteen cephid sawfly species known in the continental United States. Keys to species, species range information, and a number of other details are given. A sample entry is given below. Last revised 18 September 2019.

Excerpt from Nastasi 2019, Field Guide to Anaxyelidae and Cephidae of
the Continental United States

Specimen Imaging

As part of my undergraduate work in entomology, I have begun learning the essential skill of specimen imaging. This page catalogs a selection of specimens I’ve photographed using a Canon SLR lens, two external flash modules, a light filter device, motor-powered camera stepping, and use of PhotoShop, Lightroom, and Zerene image stacking software. All images shown here © Louis Nastasi 2019.

Mesostenus gracilis Cresson – shot with 65mm lens at 2.5x.
Specimen data: https://hol.osu.edu/spmInfo.html?id=CMNHENT0132969
Dolichopus Latreille sp. – shot with 65mm lens at 1.5x.
Specimen data: https://hol.osu.edu/spmInfo.html?id=CMNHENT0132576
Xenox tigrinus (De Geer) – shot with 100mm lens at 1.5x. Pin head removed with PhotoShop.
Specimen data: https://hol.osu.edu/spmInfo.html?id=CMNHENT0133752
Xenox tigrinus (De Geer) – shot with 100mm lens at 1.5x. Pin head removed with PhotoShop.
Specimen data: https://hol.osu.edu/spmInfo.html?id=CMNHENT0133752
Chalcidoidea sp. – shot with 65mm lens at 5x.
Specimen data: https://hol.osu.edu/spmInfo.html?id=CMNHENT0132174
Dryinidae sp. – shot with 65mm lens at 4.5x.
Specimen data: https://hol.osu.edu/spmInfo.html?id=CMNHENT0133705