Australian species of spore-feeding Thysanoptera in the genera Carientothrips and Nesothrips (Thysanoptera: Idolothripinae) Author Eow, Li-Xin Earth, Environmental & Biological Sciences School, Science & Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane, QLD 4001, Australia. E-mail: eowlixin @ gmail. com, sl. cameron @ qut. edu. au & CSIRO Ecosystem Sciences, PO Box 1700, Canberra, ACT 2601. E-mail: laurence. mound @ csiro. au & Queensland Primary Industries Insect Collection (QDPC), GPO Box 267, Brisbane, Qld, 4001. E-mail: desley. tree @ daff. qld. gov. au text Zootaxa 2014 2014-06-20 3821 2 193 221 journal article 5348 10.11646/zootaxa.3821.2.2 e03ba3fc-13a1-4096-b515-a772de4ec84e 1175-5326 4919972 C93F0714-35E6-46BE-8754-D5B17C4F7FF5 Carientothrips semirufus (Girault, 1928: 4) ( Figs 12 , 41 , 44 ) This species has remained inadequately distinguished from loisthus , a species that is equally widespread in eastern Australia . However, as indicated in the key above, the abdominal tergal chaetotaxy is very different. Moreover, loisthus is usually found at the base of grasses, whereas semirufus is associated with dead leaves and leaf-litter, as is the related new species snowi . Specimens of semirufus have been seen from Tasmania , eastern New South Wales including the ACT, and Queensland near Brisbane as well as from Cairns and Cape Tribulation in northern Queensland . Diagnosis. Apterous, usually clearly bicoloured with yellowish head ( Fig. 12 ) and thorax distinct from brown abdomen; legs yellow; head longer than wide, distinctly projecting in front of eyes, postocellar and postocular setae blunt to weakly capitate. Pronotal am setae slender and acute, the other 4 pairs stouter, longer and weakly capitate, notopleural sutures complete ( Fig. 12 ). Metanotum with weak transverse reticulation. Pelta with broad median lobe broadly joined to lateral areas ( Fig. 41 ); tergites usually with about 20 small discal setae in transverse row, wingretaining setae minute ( Fig. 44 ); tergite IX setae blunt and shorter than tube. Male with fore tarsal tooth.