Ataxia falli Classification Family Cerambycidae > Subfamily Lamiinae > Tribe Pteropliini > Genus Ataxia Diagnostic Features of Larvae Larva. Form larger hypostomal protuberance much larger and more confluent; posterior area of pronotum faintly striate; tubercles of ampullae large and distinct, posterior row of last ventral ampullae bearing two large projecting tubercles, while those of anterior row are elongate, oval; caudal spine deflexed, acute. Pupa. More hairy than Ataxia crypta, especially on the thoracic segments; chitinous setose hairs of the abdominal terga more slender, and on anterior margin of third and fourth abdominal terga two groups of two or three chitinous spines; flange on last tergum bearing a small point in the middle and the extremities projecting much higher than the middle. Adapted from Craighead (1923). Biology and Economic Importance Members of this tribe are known from various host plant families. Species of this tribe are potentially invasive outside their native range. Selected References to Larvae Specimens Craighead, 1923