Holoengythrips turcoae, Mound & Tree, 2014

Mound, Laurence A. & Tree, Desley J., 2014, Fungus-feeding phlaeothripine Thysanoptera in the genus Holothrips from Australia and New Caledonia, with a structurally similar new genus, Holoengythrips, Zootaxa 3860 (2), pp. 125-148 : 147-148

Holoengythrips turcoae sp.n.

( Figs 42 , 49 , 70 )

Male microptera: Body, legs and antennae brown, fore tarsi paler, also extreme basal quarter of antennal segment III; tube brown paler distally; major setae brown to dark brown. Head long, slender ( Fig. 42 ), dorsal surface without sculpture except behind eyes, ocelli small; cheek setae small, postocular setae longer than eye length with flattened, recurved apices; mouth cone not extending to ferna. Antennal segment III with 3 sensoria, IV with 4; VI–VII with parallel-sided pedicel, VIII slightly constricted at base. Pronotum transverse, with median apodeme but no sculpture, 4 pairs of major blunt to weakly capitate setae, am minute. Fore femora slightly swollen, fore tibia with minute ventro-apical tubercle, also with subapical rounded tubercle bearing a seta on inner dorsal margin; fore tarsal tooth as long as tarsal width; fore coxae with short stout setae. Mesonotal setae small, mesothoracic spiracular area protruding laterally ( Fig. 49 ); metanotum with one pair of small major setae, without sculpture medially. Fore wing lobe small, without major setae. Prosternal ferna scarcely meeting medially; mesoeusternal margin narrow, mesopresternum of three small sclerites; metathoracic sternopleural sutures weak. Pelta with rounded anterior margin and short lateral wings; tergites weakly sculptured, with two pairs of short straight wingretaining setae; major setae bluntly pointed to weakly capitate; tergite IX setae S1 bluntly pointed, setae iS longer than short stout S2. Anal setae shorter than tube. Sternites with one row of about 12 small discal setae; sternites III–IV with paired areas of scarcely visible reticulation; VIII with transverse pore plate across middle of sclerite ( Fig. 70 ).

Measurements (holotype male in microns). Body length 2000. Head, length 270; median width 170; postocular setae 105. Pronotum, length 135; median width 250; major setae: am 6, aa 50, ml 35, epim 50, pa 30. Fore wing lobe 35. Tergite IX setae: 100, iS 50, S2 30. Tube length 135. Antennal segments III–VIII length 70, 60, 55, 50, 45, 30.

Female microptera: Similar to male in colour and structure except, fore tarsal tooth absent; postocular setae capitate and straight; coxal stout setae smaller; mesoeusternal margin transverse; tergite IX setae S1 and S2 bluntly pointed; sternites without reticulate areas or pore plate.

Measurements (paratype female in microns). Body length 2200. Tergite IX setae: S1 85, iS 60, S2 100.

Material studied. Holotype male microptera, Queensland, Mt Bartle Frere , from bark spray, 19.xi.2009 (Monteith & Turco).

Paratypes: 4 female micropterae taken with holotype.

Non-paratype: Bulburin, [120km NW of Bundaberg], 1 female macroptera, from bark spray, 11.vii.2012.

Comments. The macropterous female listed from Bulburin is possibly this species, but has a very tiny fore tarsal tooth, and the pelta lacks posterolateral wings.

Figures

FIGURES 34–42. Holoengythrips from Australia. Heads: (34) barrinei sp.n.; (35) kathyae sp.n.; (36) maynardae sp.n.; (37) monteithi sp.n.; (38) namadgi sp.n.; (39) tallagandai sp.n.; (40) padthawayi sp.n.; (41) tarsalis sp.n.; (42) turcoae sp.n.

FIGURES 43–54. Holoengythrips from Australia. Pterothorax and abdominal tergites 43–49: (43) barrinei sp.n.; (44) maynardae sp.n., male; (45) monteithi sp.n., female; (46) tarsalis sp.n.; (47) namadgi sp.n.; (48) monteithi sp.n., male; (49) turcoae sp.n. (50) monteithi sp.n., fore tarsus and tibia. Antenna 51–53: (51) barrinei sp.n.; (52) maynardae sp.n.; (53) monteithi sp.n. (54) kathyae sp.n., female fore tarsus and tibia.

FIGURES 63–72. Holoengythrips from Australia. Male sternite VIII pore plate 63–70: (63) barrinei sp.n.; (64) kathyae sp.n.; (65) maynardae sp.n.; (66) monteithi sp.n.; (67) namadgi sp.n.; (68) padthawayi sp.n.; (69) tallagandai sp.n.; (70) turcoae sp.n. Tergite IX and tube, 71–72: (71) maynardae sp.n., female; (72) padthawayi sp.n., male.