Field Guide

Longhorn bees are named for their long antennae, which make these fuzzy, medium-sized bees look rather cute. Many have yellow faces.

The green robber fly is one of several species of robber flies called giant robber flies or bee killers. They are indeed large, with distinctive yellow and dark stripes on the abdomen and iridescent green eyes.

The yellowjacket hover fly, or Virginia flower fly, is a completely harmless mimic of yellowjackets. No more dangerous than a housefly, it buzzes around and seems aggressive.

Horntails look a lot like wasps but have a taillike spine that projects from the tip of the abdomen. Their cylindrical bodies also lack the narrow waist so common in wasps.

There are nearly 50 North American species of blue-black spider wasps. Many in this genus are entirely black, with a bluish sheen, while many others have an orange marking on the abdomen.

Spider wasps in genus Psorthaspis look quite a lot like velvet ants. There are several species. The ones in our area are usually red and black, just like the coloration of the velvet ants in our region.

Scoliid wasps are a family of beetle hunters. Large, rather hairy wasps, some are handsomely colored. The female digs in soil, finds a scarab beetle grub, and lays an egg on it.

The female black giant ichneumon wasp deposits her eggs through wood. The larvae eat the grubs of wood-boring insects.

The female long-tailed giant ichneumon wasp deposits her eggs through wood. The larvae eat the grubs of the pigeon tremex, a wood-boring horntail wasp.

The rusty spider wasp hunts wolf spiders, usually in open areas. Females create nests in rock piles or in cracks in rock walls or foundation stones. Adults are often seen taking nectar from flowers.