Teuchothrips monga sp.n.

(Figs 91–92)

Female macroptera. Body and legs brown, all tarsi yellow, fore tibial apex yellow; antennal segments I–II and VII– VIII brown, III largely yellow or shaded in apical third, IV–VI yellow with apical third to two-thirds brown; major setae pale to very weakly shaded; fore wings uniformly light brown. Head longer than wide, vertex moderately reticulate, postocular setae capitate and extending well beyond posterior margin of eyes; maxillary stylets retracted to eyes, close together medially. Antennal segment III slightly more than twice as long as wide; segment IV with 3 stout sense cones; VIII shorter than but distinct from VII. Pronotum with 4 pairs of major, capitate, setae, am setae small and acute (Fig. 92). Fore femora stout, tarsal tooth about one-third as long as tarsal width. Fore wing broad, with 10–12 duplicated cilia. Mesonotum transversely reticulate, lateral setal pair small and weakly capitate. Metanotum reticulate medially, major setal pair slender (Fig. 91). Mesopresternum divided into 2 triangles, metathoracic sternopleural sutures long. Pelta elongate and irregularly triangular, base flared; tergite IX setae S1 and S2 weakly capitate, two-thirds as long as tube; tube margins straight.

Measurements (holotype female in microns). Body length 2640. Head, length 240; maximum width 220. Pronotum, length 190; width 335; epimeral setae 90. Fore wing, length 970; sub-basal setae S1 45, S2 50, S3 50. Tergite VIII posterolateral setae 80; tergite IX setae S1 135, S2 130; tube, length 225, basal width 90; anal setae, length 170. Antennal segments I–VIII length (width): 40 (35), 55 (35), 70 (30), 65 (35), 65 (30), 60 (30), 55 (30), 30 (15).

Male macroptera. Similar to female in colour; fore legs more massive, tarsal tooth about half length of tarsal width.; sternite VIII with extensive pore plate, apparently occupying most of sternite; tergite IX setae S2 short and stout.

Measurements (paratype male in microns). Body length 2220. Head, length 200; width 190. Pronotum, length 190; width 325. Tergite IX setae S1 140, S2 60; tube, length 210, basal width 75; anal setae, length 175.

Specimens studied. Holotype female, Australia, New South Wales, Braidwood 30km east, Monga Forest, from Prostanthera lasianthes leaves, 2.iv.1995 (LAM2636), in ANIC.

Paratypes: 17 females, 13 males with larvae, taken with holotype; same host and locality, 1 female, 2 males, 16.v.1989. Australian Capital Territory, Canberra, 2 females, 1 male overwintering under bark, 1982.

Comments. One of the ater -complex, with three sense cones on antennal segment IV and stylets close together in the head, but with the pronotal am setae pointed, the fore wing sub-basal setae arranged in a straight line, and the male sternite VIII pore plate large. It is presumably host-specific, but frequent searches on Prostanthera have failed to find another colony.