A new species of Apostlethrips (Thysanoptera, Phlaeothripidae); an Australian genus from grass tussocks Author Wang, Jun Author Mound, Laurence Author Tree, Desley J. text Zootaxa 2019 2019-10-21 4688 1 144 146 journal article 25179 10.11646/zootaxa.4688.1.9 109af072-400a-43d8-9472-7bf2feaa447e 1175-5326 3514914 Apostlethrips poaceaeus sp.n. Female microptera . Body yellow, abdominal segments VIII–X and posterior margin of VII brown ( Figs 2, 6 ); apex of mouth cone shaded with brown; legs yellow shaded with brown; antennal segment I yellow, II and IV shaded with brown, III largely yellow, V–VIII brown. Head smooth, with few transverse sculpture lines basally ( Fig. 1 ); genae strongly constricted behind compound eyes but with no strong internal apodeme; ocelli absent, compound eyes with about 15 facets ( Fig. 1 ); postocular setae short and asymmetrically expanded at apex, shorter than eye length; one pair of capitate setae on ocellar region; maxillary stylets wide apart and U-shaped, retracted only into base of head. Antennal segment III with 1 small, thin sense cone, IV with 2 sense cones, III–VII each with pedicel, VIII base clearly narrower than VII apex ( Fig. 5 ). Pronotum without sculpture ( Fig. 1 ); setae aa, am, ml, epim and pa well-developed, asymmetrically capitate. Mesonotum with weak transverse sculpture, lateral setae capitate ( Fig. 4 ); metanotum almost without sculpture. Mesopresternum broad and boat-shaped, mesoeusternum complete ( Fig. 3 ). Fore tarsal tooth small, all femora and tibiae with blunt setae. Pelta with polygonal sculpture at posterior, campaniform sensilla present ( Fig. 4 ); tergites II–VII each with one pair of minute straight wing-retaining setae close to posterior margin; tergite IX setae S1 shorter than tube, anal setae as long as tube ( Fig. 2 ). Measurements ( holotype female in microns). Body length 1580. Head, length 185; width 163; postocular setae 25, distance between their bases 137; ocellar setae 22, postocellar setae 13. Pronotum, length 140; median width 218; major setae am 18, aa 25, ml 33, epim 45, pa 33. Mesonotum lateral setae 18. Metanotum median setae 22. Tergite IV median marginal setae 43; tergite VIII median setae 47, tergite IX setae S1 75, S2 80. Tube length 115. Anal setae 115. Antennal segments III–VIII length 40, 38, 43, 43, 38, 28. Male microptera . Similar to female but smaller; tergite IX S2 setae shorter. Measurements (in microns). Body length 1490. Head, length 168; width 137; postocular setae 20, postocellar setae 8. Pronotum, length 128; median width 180; major setae am 13, aa 18, ml 23, epim 36, pa 33. Tergite VIII median setae 43. Tergite IX setae S1 78, S2 50 . Tube length 100; anal setae 92. Antennal segments III–VIII length 38, 38, 42, 37, 35, 28. Specimens studied. Holotype female microptera. Australia , Northern Territory , Litchfield Natural Park , Tolmer Falls , from unknown Poaceae , 7.v.2014 (DJT 1827), in ANIC . Paratypes : 4 males , same data as holotype; Darwin , East Pt , 1 female , from unidentified green leaves, 5.v.2014 (DJT 1810).