Field Guide

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.

The blue-winged wasp is a common Missouri species of scoliid wasp. The abdomen has a distinctive fuzzy, rich rusty patch with two ovals of yellow. Its larvae eat Japanese beetle grubs and other scarab beetle larvae.

The blue orchard bee is one of our native mason bees, or megachilids. It is a very important native pollinator of spring-blooming orchard trees, such as apple, pear, and cherry.

The Georgia mason is one of several species of mason bees in Missouri. Like other megachilid bees, it is a native solitary bee that carries pollen in a special clump of hairs on the underside of 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.

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

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.

Poecilopompilus spider wasps provision their nests with orbweaver spiders. They dig nest burrows into the ground and therefore prefer sandy or other workable substrates.

Spider wasps in genus Entypus are bluish black and usually have some amount of amber color on their dark, smoky wings. Some species have bright yellow antennae.