Species Balsa labecula - White-blotched Balsa - Hodges#9664

Adult - forewing light gray with medium brownish-gray areas near the base and near the apex; near middle of wing are two whitish blotches, one below the other, the proximal blotch roughly circular, and the distal blotch more irregular and diffuse; antemedial (AM) line forms a jagged arc across wing; postmedial (PM) line double, the proximal line runs obliquely and fairly straight toward the anal angle for a short distance then bends toward the outer margin, and the distal line is wavy, running almost parallel to the costa and then bending inward in a jagged arc toward the anal angle; four small rectangular marks occur along the distal half of the costa

Larva - Bright lime- to yellow-green with conspicuous white to yellow spots and yellowish spiracular stripe. Dorsal pinacula prominent, round to more commonly transversely oval, somewhat raised. Spots between setal bases more irregular in outline. Posterior half of A3-A8 with elongate, more or less parallel-sided, middorsal spot that extends forward to posterior (D2) dorsal setae. Subdorsal stripe broken. Head pale green, unmarked, shiny. Larva less than 2.5 cm. Penultimate instar pale sea green. The larva rests with the head curled to one side.