1. Three pairs of prolegs dorsally, laterally, and ventrally on each of the first
even abdominal segments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . TabanusFour pairs of prolegs, including an additional ventrolateral pair, on the first
seven abdominal segments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32. Body surface, except respiratory siphon completely clothed with a dense
covering of short pubescence. . . . . . . . . . . . . Chlorotabans crepuscularisPubescence restricted to anterior or posterior margin or posterior border of
prolegs of one or more segments. . . . . . . . . . . . . . . . . . . . . Chrysops sp.[Home]
Key to Tabanidae Nymphs Genera