» Symphyta redirects here. For the moth genus, see Symphyta (moth genus). Sawfly's the common name for an insect in the order Hymenoptera, suborder Symphyta. Sawflies are distinguishable from most other Hymenoptera by the broad connection between the abdomen and the thorax (see image), and the caterpillar-like larvae (below). The common name comes from the appearance of the ovipositor, which looks much like the blade of a saw. Females use the ovipositor to cut into plants where they lay their e… (More on Sawfly)