Myotrioza telowiensis Taylor

Taylor, Gary S., Fagan-Jeffries, Erinn P. & Austin, Andy D., 2016, A new genus and twenty new species of Australian jumping plant-lice (Psylloidea: Triozidae) from Eremophila and Myoporum (Scrophulariaceae: Myoporeae), Zootaxa 4073 (1), pp. 1-84 : 76-77

Myotrioza telowiensis Taylor , sp. nov.

( Figs 205–212 , 217–218 , 222 ; Tables 1–8 )

Types. AUSTRALIA, South Australia: Holotype: 1 ♂ (dried, point) Telowie Gorge CP, 33º02.050'S, 138º06.182'E, 20.i.2012, G.S. Taylor, P. Weinstein & S. Orre, swept Eremophila, 2012 0 0 1 (SAM). Paratypes: 1 ♂, 5 ♀ (dried), 3 ♂, 3 ♀ (slide), 3 ♀ (ethanol), same data as holotype (SAM, WINC); 1 ♀ (ethanol), Telowie Gorge CP, 33º02.030'S, 138º06.174'E, 20.i.2012, G.S. Taylor, P. Weinstein & S. Orre, swept Dodonaea viscosa, 2012 0 0 3 (WINC); 5 ♀ (dried) Hiltaba Station Reserve, 32º06.346'S, 135º10.768'E, G.S. Taylor, 17.xi.2012, swept Eremophila sp., 2012 131 (H45) (SAM, WINC).

Description. Adult ( Figs 205–208 ). Colouration. Male: [specimen point-mounted] Dark brown to black with pale yellow-brown abdomen: vertex dark brown; eyes red; antennal segments 8–10 dark brown; pronotum, mesopraescutum and mesoscutum dark brown to black; fore and hind wings clear; fore wing veins equally pigmented brown; legs pale yellow-brown; abdominal tergites 1–5 pale brown; sternites pale yellow; proctiger, subgenital plate and parameres yellow-brown; anterior face of proctiger with brown infuscation; apices of parameres brown. Female: [specimens point-mounted] as for male except paler, yellow-brown with brown markings; vertex brown with pale yellow-brown medial marking; pronotum with pale medial marking; mesopraescutum with a pair of brown longitudinal markings; mesoscutum with 2 pairs brown longitudinal markings; mesoscutellum pale yellow; abdominal tergites pale-brown to brown; sternites pale yellow-brown; proctiger pale yellow-brown with brown marking anteriorly and laterally, with apex dark brown; hooked setae contrasting black; subgenital plate pale yellow-brown with brown infuscation apically and apex dark brown.

Structure. Measurements as in Tables 4–8 . Body short, compact ( Figs 205–208 ). Head ( Figs 209–210 ); vertex with weak medial suture, moderately sunk in vicinity of fovea; genal processes short, 0.17–0.39 times as long as vertex; antenna very short, 0.61–0.81 times width of head, with a single subapical rhinarium on each of segments 4, 6, 8 and 9; segment 10 with a short bluntly rounded seta and a very short bluntly rounded seta. Fore wing ( Figs 211– 212 ) 3.59–4.28 times as long as head width, 2.52–2.82 times as long as wide, short, broad with rounded apex; vein Rs straight, slightly upturned distally, terminating well short of wing apex, considerably shorter than vein M, RsM: 0.74–0.87; medial cell smaller than cubital cell; veins M1+2 and M3+4 short, broadly diverging with corresponding low m1 cell value: 1.03–1.25; veins Cu1a short, arched and Cu1b short, each widely divergent with corresponding low cu1 cell value: 1.11–1.48; metatibia 0.89–1.00 times as long as width of head, longer than metafemur, without sclerotised apical spurs. Male terminalia ( Figs 217–218 ); proctiger conoid, without expanded lateral lobes; subgenital plate broadly rounded; parameres ( Fig. 218 ) short, blade-like, evenly tapering to incurved sclerotised apices; distal portion of aedeagus short, with asymmetrical apical expansion ( Fig. 217 ). Female terminalia ( Fig. 222 ): proctiger short, triangular, posterior margin evenly rounded from lateral aspect and with weakly sclerotised apex; subgenital plate, triangular with tapering, weakly sclerotised apex; distal portion of proctiger with long pale setae and dense brush of hooked setae; subgenital plate with sparse long setae.

Comments. Myotrioza telowiensis sp. nov. can be distinguished by the following unique combination of characters: habitus as in Figs 205–208 , antenna with normal arrangement of rhinaria, fore wing broad with rounded apex, Rs considerably shorter than vein M ( Figs 211–212 ), female proctiger with dense field of hooked setae, rounded profile without terminal upward inflection, valvula ventralis little curved, ventral profile of female subgenital plate convex ( Fig. 222 ), male proctiger conoid with weak medial lobe, aedeagus short, paramere short with broadly rounded apex ( Figs 217–218 ). For diagnosis from closely related species, see Comments for M. darwinensis sp. nov.

Etymology. Named after the type locality, Telowie Gorge Conservation Park, South Australia + ensis.

Host-plant association and distribution. ( Tables 2–3). Myotrioza telowiensis sp. nov. is recorded from an undetermined species of Eremophila from a single locality in the southern Flinders ranges, South Australia. It is one of 10 species of Myotrioza gen. nov. and 24 species of Triozidae recorded for South Australia. It is considered endemic to that state. The record from Dodonaea viscosa is considered doubtful, being more likely to be vagrant from nearby plants.

Figures

FIGURES 205 – 212. Myotrioza telowiensis, sp. nov. (205), habitus, male, (dorsal aspect); (206), habitus, female (dorsal aspect); (207), habitus, male (lateral aspect); (208), habitus, female (lateral aspect); (209), head, male (dorsal aspect, from slide); (210), head, female (dorsal aspect); (211), fore wing, male (from slide); (212), fore wing, female. Scale = 1.0 mm.

FIGURES 213 – 218. Figs 213 – 214: Myotrioza scopariae, sp. nov. (213), male terminalia (lateral aspect); (214), paramere (inner face, lateral aspect); Figs 215 – 216: M. serrulatae, sp. nov. (215), male terminalia (lateral aspect); (216), paramere (inner face, lateral aspect); Figs 217 – 218: M. telowiensis, sp. nov. (217), male terminalia (lateral aspect); (218), paramere (inner face, lateral aspect). Scale = 0.2 mm for male terminalia, 0.1 mm for parameres.

FIGURES 219 – 222. Female terminalia (219), Myotrioza remota, sp. nov.; (220), M. scopariae, sp. nov.; (221), M. serrulatae, sp. nov.; (222), M. telowiensis, sp. nov. Scale = 0.5 mm (all at same scale).