Though it is a small wasp, the boxy shape of a Squarehead Wasp's head seems almost too large for its body.
A rounded cube best describes the head of a Squarehead Wasp. This small flying insect typically reaches a length of 1 cm, just long enough to sit across the nail of a pinky finger. The classic black and yellow coloring is present with most species displaying bright yellow bars by the 'neck' and a yellow band just before the 'waist'. The abdomen has yellow bands as well. Antennae are short and yellow. Legs are also yellow with black 'thighs' and dark feet. The dark wings usually overlap and tuck back over the body when resting or walking.
Females nest in flexible twigs or soft, rotting wood. Flies are captured and stashed with her wasp eggs to serve as a food source for her larvae once they hatch. This type of wasp is small and not generally interested in people. Look for them in or near woodlands.
Scientific Name: Ectemnius spp.
Bee, Ant, Wasp and Similar
Size (Adult; Length): 8mm to 10mm (0.31in to 0.39in)
Note: An insect's reach is not limited by lines drawn on a map and therefore species may appear in areas, regions and/or states beyond those listed above as they are driven by environmental factors (such as climate change), available food supplies and mating patterns. Grayed-out selections indicate that the subject in question has not been reported in that particular territory. U.S. states and Canadian provinces / territories are clickable to their respective bug listings.
Ant, Bee, and Wasp Anatomy
Antennae: Ants and Bees both have a pair of antennae on the head that senses their surroundings.
Head: The head contains the insect's compound eyes, antennae, and mandibles.
Thorax: Contains various vital parts such as the aorta and nervous system.
Abdomen: Contains various organs including the heart, gut, venom glands, and anus.
Legs: Ants and Bees have three pairs of legs attached to the thorax (center-body section).
NOTE: Ants, Bees and Wasps are part of the Hymenoptera order because they share many similarities.