Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Order Hymenoptera - Ants, Bees, Wasps and Sawflies


Palaearctic Osmiine Bees
(Taken from the website and pasted below...)
"Intention of the website
The “Palaearctic Osmiine Bees” website intends to give a concentrated but concise overview on taxonomy, distribution, nesting biology and flower preferences of all osmiine bee species known to occur in the Palaearctic region. Scientific basis for the data on taxonomy and distribution is the recently published “Taxonomic catalogue of the Palaearctic bees of the tribe Osmiini” (Ungricht et al., 2008). The biological data are based on an extensive literature study on osmiine nesting biology (A. Müller, C. Praz, J. Neff, G. Le Goff and C. Sedivy, unpublished), on a compilation of flower records from the literature (A. Müller, unpublished) as well as on results of ongoing pollen-analytical studies at the Entomological Collection of the ETH Zürich. The information for each species will be updated and corrected in regular intervals. Important new findings or major corrections will be communicated and justified in the “Updates and Corrections” part of the website. Here, all interested readers are invited to scientifically comment on new entries by using the blog facility of the website.

A taxonomic review of the genus Spathius Nees (Hymenoptera: Braconidae) in North America and comments on the biological control
Marsh, Paul M. and John S. Strazanac. “A taxonomic review of the genus Spathius Nees (Hymenoptera: Braconidae) in North America and comments on the biological control of the emerald ash borer (Coleoptera: Buprestidae).” Journal of Hymenoptera Research 18 (2009): 80-112.

Abstract.—A review of the braconid genus Spathius in North America and comments on several
species in the biological control of the Emerald ash borer, Agrilus planipennis Fair., are presented.
Separate keys to females and males, descriptions, distributions, and biologies are given for the 19
species occurring in North America. One new species, Spathius leiopleuron Marsh and Strazanac,

Papers on Vespa
Papers on the Genus Vespa from around the world.

Key to Giant Ichneumonid Wasps (Megarhyssa) of USA/Canada
By Zachary Dankowicz & Juan Cepeda Espinosa

The Serphoid Hymenoptera of the family Roproniidae
Townes, H. (1948). The Serphoid Hymenoptera of the Family Roproniidae. Proceedings of the United States National Museum. https://doi.org/10.5479/si.00963801.98-3224.85

Hoskins, J.W. (2017) Paper Wasps: A Quick Guide to US Polistes Species
This is a primarily textual guide designed to follow identification based on typical color patterns. It is strictly non-technical in the sense that microscopic traits are avoided when not absolutely necessary. As such, it does not replace a true species key but instead should suffice to introduce the range of color patterns found both across species and within species.

Each species entry is divided into sections including:
• body color (general pattern)
• diagnosis (detailed traits that typically suggest that species)
• similar species (a list of species that share similar colora

James M. Carpenter. Distributional checklist of species of the genus Polistes (Hymenoptera, Vespidae, Polistinae, Polistini)
A digital version of the 1996 paper with taxonomic updates through 2006.

Papers in Polistes
Papers on Polistes species of the world.