Teuchothrips jarowair, Mound & Dang & Tree, 2023

Mound, Laurence A., Dang, Lihong & Tree, Desley J., 2023, Structural diversity among the leaf-feeding thrips of Australia in the genus Teuchothrips (Thysanoptera, Phlaeothripinae) with 20 new species, Zootaxa 5383 (4), pp. 441-475 : 457-459

Teuchothrips jarowair sp.n.

( Figs 44–48 )

Female macroptera. Body and legs brown, mid and hind tarsi pale brown, fore tarsi yellow also much of fore tibiae; antennal segment I and VII–VIII brown, II yellow at apex, III almost clear yellow, IV–VI increasingly shaded beyond pale base; major setae pale; fore wings pale, including base. Head longer than wide, narrowing to base; vertex mainly weakly sculptured but with strong transverse band of reticulation at posterior; postocular setae weakly capitate, extending almost to posterior margin of eyes; eyes longer dorsally than ventrally; maxillary stylets almost one-third of head width apart, retracted almost to postocular setae ( Fig. 44 ); mouth cone not elongate. Antennal segment III about twice as long as apical width, with distinct ridge near base; IV with 3 major, moderately long sense cones, VIII small and distinct from VII. Pronotum relatively elongate, with few sculpture lines, only epimeral setae large ( Fig. 45 ). Fore tarsal tooth almost as long as width of tarsus, fore femora moderately stout. Fore wing with about 18 duplicated cilia, sub-basal setae S1 and S2 developed, expanded at apex, S2 longer, S3 small, acute at apex. Mesonotum reticulate, lateral setal pair capitate. Metanotum with elongate reticulation, major setal pair slender ( Fig. 46 ). Mesopresternum divided into 2 triangles that extend medially, metathoracic sternopleural sutures long. Pelta irregularly triangular, tergite VII wing retaining setae scarcely developed; tergite IX setae S1 and S2 apices blunt to weakly capitate; tube lateral margins straight ( Fig. 47 ).

Measurements (holotype female in microns). Body length 2840. Head, length 260; maximum width 210. Pronotum, length 275; width 315; epimeral setae 65. Fore wing, length 1070; sub-basal setae S1 30, S2 50, S3 25. Tergite VIII posterolateral setae 70; tergite IX setae S1 90, S2 90; tube, length 250, basal width 100; anal setae, length 100. Antennal segments I–VIII length (width): 60 (35), 55 (35), 70 (30), 65 (35), 65 (30), 65 (30), 55 (25), 25 (15).

Male macroptera. Similar to female in colour and sculpture; sternite VIII with small subcircular pore plate medially ( Fig. 48 ); tergite IX setae S2 similar to S1 setae.

Measurements (paratype male in microns). Body length 2650. Head, length 250; width 190. Pronotum, length 210; width 275. Tergite IX setae S1 80, S2 70. Tube, length 205, basal width 70; anal setae, length 115.

Specimens studied. Holotype female, Queensland, Toowoomba, Redwood Park , from barkspray of trees and logs, 18.xi.2011 (G.Monteith), in ANIC.

Paratypes, taken with holotype: in ANIC 2 males ; in QDPC 1 female, 1 male .

Comments. This species seems to be unique in the genus for the small, subcircular pore plate on sternite VIII in males. The structure of the pronotum is remarkably similar to that of toowoomba sp.n. but the tenth abdominal segment is far shorter. These two species were taken together in the same barkspray sample in southern Queensland.

Figures

FIGURES 44–52. Teuchothrips of Australia. T. jarowair 44–48: (44) head; (45) pronotum; (46) metanotum & pelta; (47) tergites IX–X; (48) male sternite VIII. T. jukun 49–52: (49) head & pronotum; (50) fore tarsus; (51) metanotum & pelta; (52) tergite VIII, male.