Field Guide

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.

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 marbled orbweaver is sometimes called the “pumpkin spider” because its rounded abdomen is sometimes bright orange. The color and markings can vary greatly.

Armored harvestmen have spines on their fingerlike mouthparts (pedipalps). Unlike other harvestmen, members of this suborder of so-called daddy longlegs do not usually have long legs.

The Halloween pennant is one of the more common members of its genus. Distinctive wing markings include a complete brown band (not just a spot) positioned just short of the wing tip.

Red-headed ash borers resemble wasps, but they are harmless to people. The colors and markings are distinctive. Their larvae feed on a variety of dead or dying hardwoods, helping the decomposition process and enriching the soil.

Plant bugs, or mirids, are a huge family of true bugs. They are often overlooked — except by gardeners and farmers. Most mirids eat plants, and some are agricultural pests. As a group, they’re an important food source for birds and other insectivores.

Bot flies are chunky, beelike flies usually with rounded heads. Adults are not commonly seen. The larvae are short, pudgy, segmented grubs that live as parasites in the tissues of animals. Those that live just under the skin often form a bulge. Some types live in the nasal or throat cavities of deer.

The eastern stizus is a large, solitary wasp that is often misidentified as the better-known eastern cicada-killer wasp. The markings are slightly different, however, and the eastern stizus female hunts katydids, not cicadas.

The longlegged flies are a large, diverse fly family. They often have eye-catching metallic green, copper, bronze, or blue bodies and long legs. Their delicate wings are often clear and look iridescent in bright light, but many species have dark marks near the wing tips.