Rhagium mordax Classification Family Cerambycidae > Subfamily Lepturinae > Tribe Rhagiini > Genus Rhagium Diagnostic Features of Larvae Mature larva. Similar to that of Rhagium bifasciatum, from which it may be distinguished as follows. Head with transverse suture of frons faint, the area anterior to suture becoming gradually and only slightly darker than posterior area. Genae much darker than anterior part of frons and deeply transversely striate. Abdomen with dorsal ampullae dull, microscopically spiculate, without well-defined tubercles and with three distinct transverse furrows. Ninth segment with the angle between sides of support of terminal spine about 120°. Spiracles almost twice as large as those of R. bifasciatum, with peritreme thicker, darker and more broadly oval. Pupa. This pupa is very similar to that of Rhagium bifasciatum and, like the latter, rather variable in the number of spines present. In general, the majority of the spines in this species are appreciably shorter and more slender. The most obvious and constant difference appears to be the presence of several rather stout pale spines (each with a Jong fine basal seta) arranged in sublateral groups on the abdominal sternites four to eight, for in R. bifasciatum stout ferruginous setae only are present. Adapted from (Duffy 1953). Biology and Economic Importance Biology and economic importance for this taxon coming soon. Selected References to Larvae Specimens Duffy, 1953