Strepterothrips barbatus, Mound, Laurence A. & Tree, Desley J., 2015

Mound, Laurence A. & Tree, Desley J., 2015, Fungus-feeding Thysanoptera: Phlaeothripinae of the Idiothrips genus-group in Australia, with nine new species, Zootaxa 4034 (2), pp. 325-341 : 333-335

Strepterothrips barbatus sp.n.

( Figs 21 , 37, 38 )

Female aptera: Body, legs and antennae brown, with antennal segments I–II light brown; major setae all pale.

Head longer than wide; cheeks narrowed to base, dorsal surface reticulate but weakly so in midline, mid-dorsal setae capitate but shorter than broadly capitate po setae; eyes with about 5 facets dorsally and 2 anteroventrally. Antennae 7-segmented ( Fig. 21 ), III sub-circular with narrow pedicel and one small fine sense cone; IV with 2 sense cones; segments III–V with transverse sculpture lines. Pronotum reticulate ( Fig. 38 ), with a few small tubercles near posterior margin; with 5 pairs of short, broadly capitate major setae, and at least 25 short stout discal setae; notopleural sutures incomplete. Mesonotum transversely reticulate, with one pair of capitate lateral setae. Metanotum strongly sculptured, with about 30 stout, blunt discal setae ( Fig. 37 ). Prosternal basantra not developed; ferna transverse, not meeting medially; mesopresternum reduced to pair of very small lateral triangles, mesoeusternum anterior margin strongly eroded. Pelta broad, reticulate with at least one discal setae ( Fig. 37 ); tergites reticulate with rows of small tubercles near posterior margins, with transverse row of bluntly pointed discal setae; II–VII with pair of asymmetrically capitate posteromarginal setae, these setae longer on VIII; setae S1 on IX capitate, longer than basal width of tube; S2 longer and finely acute.

Measurements (holotype female in microns). Body length 1500. Head, length 200; width 160; po setae 18. Pronotum, length 125; width 200; major setae, am 18, aa 18, ml 18, epim 25, pa 20. Tergite IX setae S1 50; S2 100. Tube length 120; basal width 50; anal setae 125. Antennal segments III–VII length, 30, 37, 35, 37, 65.

Male aptera: Similar to female in colour and structure; large male with sub-apical tubercle on inner margin of fore tibia, tarsal hamus greatly enlarged and curved; tergite IX setae S2 slender and finely pointed. Material studied. Holotype female aptera. Australian Capital Territory, Canberra, Black Mt., from dead twigs, 1.x.2006 (LAM4928) (ANIC).

Paratypes, all apterae: 1 female 2 males collected with holotype; 3 males, same site, on 13.iv.2006, 7.iv.2007, 30.iv.2011. New South Wales, 40km South of Coonabarabran, 1 female from grasses, 13.iii.2006. Comments. Closely similar to apterus , this species differs in being strongly reticulate, and with many more setae on the pronotum and metanotum.

Figures

FIGURES 16 – 26. Strepterothrips species from Australia. Mesoeusternal anterior margin 16 – 19: (16) verruculus; (17); arake; (18) orientalis; (19) parvulus. Antennae 20 – 26: (20) arake; (21) barbatus; (22) moffati; (23) okajimai; (24) orientalis; (25) parvulus; (26) tuberculatus.

FIGURES 36 – 45. Strepterothrips species from Australia. Metanotum and pelta 36 – 37: (36) apterus; (37) barbatus. Pronotum 38 – 39: (38) barbatus; (39) verruculus. (40) verruculus metanotum and pelta. (41) tuberculatus thorax and pelta. (42) moffati metanotum, pelta and tergites. Apical abdominal segments 43 – 45: (43) arake; (44) okajimai; (45) orientalis.