Phoracantha semipunctata Classification Family Cerambycidae > Subfamily Cerambycinae > Tribe Phoracanthini > Genus Phoracantha Diagnostic Features of Larvae Mature larva. Very similar to that of Coleocoptus senio, from which it may be distinguished as follows. Length up to 32 mm; maximum breadth (at prothorax) 10.5 mm. Head with maximum head-width 6.5 mm. Temple with one or two shallow, transverse impressions on each side of strong median impression. Front margin of head rather broadly pitchy. Labrum slightly longer than broad. One pair of distinct ocelli present laterad and ventrad of antenna; ocellar lens large, oval; pigmented spot indistinct. Maxilla with third segment of palpi as long as or longer than second. Labial palpi with third segment as long as or longer than second. Prothorax with conspicuous, scattered, dark glabrous spots on lateral regions. Pupa. Similar to that of Coleocoptus senio, from which it differs as follows. Length 25 mm; maximum breadth 6 mm. Head with vertex partly visible from above and less elongate. Maxillary palpi not broadened apically. Pronotum quadrate and with front margin feebly rounded; bearing scattered, short, curved, testaceous spines, especially near front angles; lateral tubercles acute and much more strongly produced. Mesonotum transversely striate and glabrous. Elytra with inner angles more strongly toothed. Abdomen with tergites one to six with spinose areas scarcely raised and with spines smaller. Functional spiracles with peritreme more narrowly oval and scarcely or not raised. Adapted from Duffy (1953). Biology and Economic Importance Members of this tribe are native to Australasian region. Several species have been introduced worldwide, for example Phoracantha recurva (eucalyptus longhorned beetle). More information on this genus is available at: cabi.org. Selected References to Larvae Specimens Duffy, 1953