A potter wasp (Vespidae: Eumeninae) carries a paralyzed caterpillar back to her nest. Yandoit, Victoria, Australia.
The common mud-dauber wasp with a nearly completed set of cells. Yandoit, Victoria, Australia.
A potter wasp visits a fall goldenrod. Austin, Texas, USA.
This small wasp (Eulophoidae: Elasmus) is a parasitoid of common Polistes paper wasps. Austin, Texas, USA.
Metamorphosis in the common mud dauber: larva, pupa, recently eclosed adult. Austin, Texas, USA.
A female velvet ant showing the black/red coloration typical of many species in Texas. Velvet ant species often converge on similar regional color patterns. Elgin, Texas, USA.
Spilopteron sp. - Ichneumon wasp
A male wasp sips nectar from a dill flower. Although less celebrated than bees as pollinators, wasps may also plan an important role. South Bristol, NY, USA.
A parasitoid wasp (Eupelmidae: Anastatus) oviposits into a stink bug egg. Austin, Texas, USA.
A tiny parasitoid wasp drills into the head of a coneflower to lay her eggs. Wasps of the family Eulophidae can be recognized by the reduced number of segments in their antennae and legs. Austin, Texas, USA.
High magnification photograph of the fore and hind wings of a Mexican honey wasp. Note the hooks, called hamuli, that connect the wings during flight. Specimen from the University of Texas Insect Collection.
A female paper wasp collects wood shavings in early spring as raw material for her paper nest.
Austin, Texas, USA.
Mexican honey wasps on their paper nest. San Antonio, Texas, USA
Portrait of a Mexican honey wasp, one of the few non-bee species that stores honey. San Antonio, Texas, USA.
The bright colors of Mexican honey wasps serve as a warning of this species' painful sting. San Antonio, Texas, USA.
Silhouetted against the dusk sky, a parasitic wasp lays her egg in the dead trunk of a redbud tree. Her target is probably wood-boring beetles. Urbana, Illinois, USA.
A female crown-of-thorns wasp, in the relatively uncommon family Stephanidae. This species is a parasite of wood-boring beetles. Urbana, Illinois, USA.
Braconid wasp cocoons
Urbana, Illinois, USA.
An egg-parasitioid wasp (Scelionidae) lays her eggs into an egg of a Caligo owl butterfly. Cayó District, Belize.
Leptopilina boulardi (Figitidae) is a parasitoid wasp that attacks the larvae of drosophilid fruit flies. Here, a female probes a rotting banana with her ovipositor.
An egg-parasitioid wasp (Platygastridae: Scelioninae) lays her eggs into an egg of a Caligo owl butterfly. Cayó District, Belize.
An ant-parasite wasp (Eucharitidae) lays an egg in a Heliconius leaf. The young hatchling will attempt to hitchhike on a passing ant into the nest, where it will prey on developing larvae.
Ibagué, Tolima, Colombia
An egg-parasitioid wasp (Platygastridae: Telenomus sp.) lays her eggs into an egg of a Caligo owl butterfly. Cayó District, Belize.
A bewildering architectural variety exists among the many species of social wasps. This Brazilian Myschocyttarus paper wasp makes a long, rope-like nest.
Viçosa, Minas Gerais, Brazil
Leptopilina boulardi (Figitidae)
Laboratory culture at Emory University, Georgia, USA
A male cicada killer wasp (Sphecius speciosus) monitors his territory from the top of a coneflower.
Urbana, Illinois, USA
A cynipid gall wasp takes advantage of a previous wasp's efforts and lays her egg inside an existing oak gall.
Bell Smith Springs, Illinois, USA
A selection of Hymenoptera from a museum collection, preserved for scientific study.
Mutillidae. Urbana, Illinois, USA
Philanthus sand wasps mating.
Braconid wasps in the subfamily Alysiinae are parasites of flies.
Urbana, Illinois, USA
Aphidius ervi - biocontrol wasp attacking Acyrthosiphon pisum pea aphids.
Laboratory colony at the University of Arizona
Encyrtid wasp, Comperia merceti, emerging from a parasitized cockroach egg case. Laboratory colony at the University of Arizona.
Eucharitid wasps (blue insect at right) are specialized parasites of ants.
Chiricahua Mountains, Arizona, USA
The pupa of a parasitic eucharitid wasp in a pile of Pheidole ant brood.
Chiricahua Mountains, Airzona, USA
Eucharitid wasps are specialized parasites of ants.
A nest of the European paper wasp, Polistes dominula.
Encyrtid wasp, Comperia merceti, emerging from a parasitized cockroach egg case.
Laboratory colony at the University of Arizona.