Insect parasites of scarabs from sugarcane fields in southern Queensland(Coleoptera : Scarabaeidae)

摘要

Data on parasitism of scarabs were collected by sampling sugarcane in the Bundaberg region of southern Queensland during 1993-1997. The scoliid Campsomeris tasmaniensis (Saussure) parasitised third instars of the melolonthines Antitrogus parvulus Britton, Lepidiota crinita Brenske, Lepidiota negatoria Blackburn and Lepidiota noxia Britton, and of the ruteline Anoplognathus porosus (Dalman). Levels of parasitism were low (<2%). Third instars of A. porosus were also parasitised by the dexine tachinid Rutilia sp. Puparia of Prosena sp. (Tachinidae: Dexiinae) were found in soil with larvae of L. noxia. Larvae of Prosena sp. are parasites of scarab larvae elsewhere, and are probably parasites of scarabs in southern Queensland. Adults of A, parvulus, L. crinita and L. noxia were parasitised by the tachinine tachinid Palpostoma sp. at levels of 2-18.4%.