Holoengythrips monteithi sp.n.

(Figs 37, 45, 48, 50, 53, 66)

Male aptera: Bicoloured, head yellow with median longitudinal brown marking, body and legs brown except fore tarsi and distal part of fore tibiae yellow; antennal segments largely brown (Fig. 53), III washed with yellow, major setae pale to shaded, coxal setae darker. Head longer than wide, strongly elevated in mid-line (Fig. 37), with weak sculpture, ocelli absent, cheek setae weak, postocular setae longer than eye length; mouth cone not extending to ferna. Antennae relatively slender, segment III with 3 sensoria, IV with 4; V–VII with parallel-sided pedicel, VIII slightly narrowed at base. Pronotum broad, with strong median apodeme but no sculpture, 5 pairs of major setae but am setae small. Fore femora slightly swollen, fore tibia with small tubercle ventrally at apex also one large conical tubercle dorsally near apex (Fig. 50); fore tarsal tooth as long as tarsal width; fore coxae with several short stout setae. Mesonotal setae small; metanotum with one pair of small major setae, reticulate medially, posterior margin elevated (Fig. 48). Prosternal ferna abutting medially; mesoeusternal margin sharply angulate, mesopresternum of two sclerites; metathoracic sternopleural sutures present. Pelta anterior margin rounded (Fig. 48); tergites weakly sculptured, with one pair of straight wing-retaining setae; tergal major setae long and blunt to capitate; tergite IX setae S1 long and blunt, setae iS longer than short stout S2. Anal setae about as long as tube. Sternites with one row of about 10 minute discal setae; VIII with narrow transverse pore plate across median part of sclerite (Fig. 66).

Measurements (holotype male in microns). Body length 2600. Head, length 430; median width 240; postocular setae 100. Pronotum, median length 160; median width 350; major setae: am 35, aa 90, ml 60, epim 90, pa 80. Tergite IX setae: S1 130, iS 55, S2 225. Tube length 160. Antennal segments III–VIII length 80, 75, 72, 70, 55, 35.

Female aptera: Similar to male in colour and structure, except: postocular setae weakly capitate; fore tarsal tooth smaller; mesoeusternal margin weakly angulate, mesopresternum of paired lateral triangles; metanotum reticulate but posterior margin not elevated (Fig. 45).

Measurements (paratype female in microns). Body length 2900. Tergite IX setae: S1 160, iS 60, S2 150.

Material studied. Holotype male aptera, Queensland, Mt Moffat, Carnarvon N.P., from bark spray, 16.i.2013 (G. Monteith).

Paratypes: Queensland, 1 female, 2 male apterae taken with holotype; Redcliffe Tableland [120km West of Mackay], 1 female aptera from bark spray, 16.iv.2012.

Comments. This is the largest member of the genus, with the antennae longer and more slender than the other species. The head is similar in shape to barrinei (Fig. 34), but is even more elevated in the midline (Fig. 37).