Gambria bicolor Classification Family Cerambycidae > Subfamily Cerambycinae > Tribe Trachyderini > Genus Gambria Diagnostic Features of Larvae Mature larva. Similar to that of Sphaenothecus bilineatus from which it may readily be separated as follows. Head with two pairs of conical tubercles instead of two pairs of longitudinal carinae on hypostoma. Ocellus oval; pigmented spot indiscernible. Length up to 22 mm; maximum breadth (at prothorax) 5mm. Adapted from Duffy (1960). Biology and Economic Importance Biology unknown for members of this tribe. Species of this tribe are potentially invasive outside their native range. Selected References to Larvae Specimens Duffy, 1960