Fungus-feeding phlaeothripine Thysanoptera in the genus Holothrips from Australia and New Caledonia, with a structurally similar new genus, Holoengythrips Author Mound, Laurence A. Australian National Insect Collection, CSIRO, PO Box 1700, Canberra, ACT 2601. E-mail: laurence. mound @ csiro. au Author Tree, Desley J. Queensland Primary Industries Insect Collection (QDPC), Department of Agriculture, Fisheries and Forestry, Queensland, Ecosciences Precinct, GPO Box 267, Brisbane, Qld, 4001. E-mail: Desley. Tree @ daff. qld. gov. au text Zootaxa 2014 2014-09-04 3860 2 125 148 journal article 4851 10.11646/zootaxa.3860.2.2 24969123-dce4-499a-aa81-55469cf1713a 1175-5326 4930156 EFF3B789-5578-4E7B-B6C7-3895511E0CE4 Holothrips circulus sp.n. ( Figs 5 , 14 , 21 ) Female aptera . Body yellowish brown, anterior third of head brown with remainder yellow, pronotum brownish yellow, tube yellow on distal third before grey band at apex; femora brown, mid and hind tibiae and tarsi clear yellow; antennal segments I–II yellow, III brownish yellow, IV–VIII brown; major setae shaded. Head without sculpture except on posterior third; eyes small but distinctly prolonged ventrally, ocelli close together ( Fig. 5 ); postocular setae long and capitate; maxillary stylets with moderately wide loop within prothorax. Suture between antennal segments VII–VIII present on ventral surface only. Pronotum transverse, almost without sculpture, with 5 pairs of capitate major setae, notopleural sutures complete; fore tarsal tooth less than half as long as tarsal width. Prosternal ferna not meeting medially; mesopresternum transverse but slender medially, mesoeusternal anterior margin entire; metathoracic sternopleural suture long and slender. Mesonotal setae small. Metanotum with concentric sculpture medially ( Fig. 21 ), major setae small arising medially, anterior third with two pairs of minor setae. Pelta reticulate, broadly triangular with truncate apex; wing-retaining setae minute and straight, major setae long and capitate; tergite IX setae long and finely acute; tube shorter than head ( Fig. 14 ). Measurements ( holotype female in microns). Body length 3000. Head, length 400; width behind eyes 300; postocular setae 125. Pronotum, length 200; width 400; major setae: am 80, aa 55, ml 55, epim 70, pa 95. Tergite IX setae: S1 240, iS 50, S2 225. Tube length 225. Antennal segments III–VI [VII–VIII] length 110, 100, 85, 75, [95]. Male aptera . Similar to female except, ocelli absent; fore femora swollen, fore tarsal tooth about as long as tarsal width; sternites V–VII with weak areas of reticulate sculpture. Measurements ( paratype male in microns). Body length 2800. Tergite IX setae: S1 200, iS 55, S2 50 . Material studied . Holotype female aptera, Queensland , Springbrook , [ 30km West of Coolangatta ], from bark spray in rainforest, 30.xi.2011 ( G. Monteith ). Paratypes : 1 female , 2 male apterae collected with holotype . Comments . The metanotal sculpture of this species is distinctive, although it is based only on apterae, and winged individuals can be expected to be rather different.