Obrium cantharinum Classification Family Cerambycidae > Subfamily Cerambycinae > Tribe Obriini > Genus Obrium Diagnostic Features of Larvae Mature larva. Very similar to those of Molorchus species, from which it differs as follows. Form more slender and elongate. Length up to 17 mm. Head with lens of ocellus rather large and feebly convex; pigmented spot distinct. Antenna with second segment twice as long as broad; third segment slender, cylindrical, about four times as long as broad. Gula distinct, triangular. Prothorax with posterior part of pronotum rather coarsely striate; median cleavage line feebly impressed. Abdomen with ampullae on segments three to seven deeply bilobed and strongly protuberant. Epipleura scarcely protuberant on last three segments. Legs very minute, much shorter than third segment of maxillary palp. Adapted from Duffy (1953). 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 Duffy, 1953