Crossidius pulchellus Classification Family Cerambycidae > Subfamily Cerambycinae > Tribe Trachyderini > Genus Crossidius Diagnostic Features of Larvae Larva. Form cylindrical, somewhat robust; integument tough, shining, very hairy; head more strongly tapering anteriorly and gena not so strongly shouldered as in most species; mandible having a sulcus on outer face; ocellus small; labrum sub-orbicular; first joint of antennae about as long as wide, equal to third, second longer; last joint of maxillary palpi indistinctly longer than second; process of palpifer indistinct; anterior edge of hypostoma smooth. Prothorax quadrate, posterior area of pronotum striate; lateral plates distinct; presternal plates square or lengthening posteriorly, widely separated; mesonotum and metanotum finely granulate; ampullae dull, finely granulate; only one transverse suture distinct; pleural discs granulate, rather distinct; spiracles small, sub-orbicular, but little larger than ocellus. Adapted from Craighead (1923). Biology and Economic Importance The larvae were collected in the roots of Artemisia. It was associated with a species of Mecas and Sesia which, working together, entirely destroy the larger roots and base of the stem. Adapted from Craighead (1923). Selected References to Larvae Specimens Craighead, 1923