• Zabrachia polita Coquillet (figs. 41, 42): Zabrachia (2.4-2.6 mm) has a round cell in the middle of the wing (fig. 41A). The antennae have three segments with an apical arista. The body is black with a tiny, pointed abdomen. The thorax has no long spines and the eyes are large and gold. The larva (fig. 41B) has armored skin and many long bristles.

Sciaridae: Sciarids (figs. 46, 47) are small (1.4-1.7 mm), delicate flies and are usually gray to black. Antennae are long and many-segmented. Eyes are dark and the abdomen pointed. Wings (fig. 46A) have no cells or cross veins in the middle, but each wing has a distinctly forked vein. The larva (fig. 46B) has a complete head capsule and soft skin.

• Lonchaea Fallen (figs. 48, 49): Lonchaea (3.4-4.2 mm) is a black, heavy-bodied fly with a pointed abdomen and red-brown eyes. The antennae have three segments with a subapical arista; the third segment is much more elongate than that of other flies discussed here. The wing (fig. 48A) is similar to that of Medetera but has a small cross vein nearer the apical cross vein. The larva (fig. 48B) has soft skin and internal mouthparts.