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 Nesothrips brigalowi sp.n. ( Figs 54 , 64 ) Female macroptera . Body uniformly brown, femora and tibiae brown but distal end of each paler, tarsi yellow; antennal segment I brown, II yellow, III–V yellow with apical brown shading progressively increasing, VI–VIII uniformly brown; major setae brown; fore wing lightly shaded. Head wider than long, not projecting in front of eyes, vertex weakly reticulate only near margins; postocellar setae acute, arising within ocellar triangle ( Fig. 54 ); postocular setae long, acute; compound eyes almost equal in size dorsally and ventrally, several ventral ommatidia weakly pigmented; maxillary stylets wide V-shaped, retracted nearly to postocular setae; maxillary palp segment I about as long as wide, segment II about 3 times as long as I, without transverse lines, terminal sensorium setaceous. Antennal segment VIII not constricted at base. Pronotum transverse, weakly reticulate near posterior margin, notopleural sutures complete; with 5 pairs of acute major setae, am more slender; mesopresternum transverse, boat-shaped; metathoracic sternopleural sutures long and curved. Mesonotum with reticulation bearing microtrichia on anterior half ( Fig. 64 ). Metanotum reticulate medially; median setae well-developed ( Fig. 64 ). Fore wing with about 10 duplicated cilia, sub-basal setae welldeveloped and acute. Pelta with rounded median lobe, constricted where lateral wings are connected, extending about 80% across anterior border of tergite II ( Fig. 64 ); tergites III–VII each with pair of sigmoid wing-retaining setae; tergite IX setae acute, shorter than tube; tube shorter than head. Measurements ( holotype female in microns). Body length 2050. Head, length 200; width 235; postocellar setae 25; po setae 70. Pronotum, length 120; width 235; major setae am 35, aa 35, ml 25, epim 75, pa 55. Fore wing, length 850; sub-basal setae 40, 65, 100. Tergite IX setae S1 85, S2 150, S3 135. Tube length 190. Antennal segments III–VIII length 70, 70, 65, 65, 45, 30. Male macroptera . Similar to female but much smaller, fore tarsus with small pointed tooth. Specimens studied. Holotype female. Australia , Queensland , Dalby , from Acacia harpophylla , 27.ix.1997 (LAM3329). Paratypes all from Queensland from same host: 1 male with same date and site as holotype ; Dalby , Lake Broadwater , 2 females , 19.vii.1995 , 2 females 2 males from dead branches, 8.iii.2006 ; Rosewood , 2 females from dead Acacia harpophylla leaves, 13.x.2006 ; 10km East of Moonie , 1 female , 28.ix.1997 ; 30km West of Charters Towers , 1 female , 30.vii.1993 . Comments. This is a typical member of Nesothrips , with widely spaced maxillary stylets, long maxillary palp segment II, and well-developed ocellar setae arising within the ocellar triangle anterior to the posterior ocelli. It is very similar to minor , apart from the position of the ocellar setae and the darker colour of the first antennal segment.