Monothrips cuspis, Mound, Laurence A., 2011

Mound, Laurence A., 2011, Grass-dependent Thysanoptera of the family Thripidae from Australia, Zootaxa 3064 (1), pp. 1-40 : 28

Monothrips cuspis sp.n.

(Figs 71–74, 76–77)

Female macroptera. Body, legs and antennae yellow, antennal segment VI light brown, also VII–VIII, abdominal segment X and distal half of IX brown; major setae pale; fore wing weakly shaded in basal third, then darker medially with apex pale; compound eyes with 5 pigmented facets. Right antenna of holotype with segments VII–VIII fused; head with anterior margin slightly conical; ocellar setae pair I wide apart, pair III arising between hind margins of posterior ocelli (Fig. 72); maxillary palps 3-segmented. Pronotum posterior margin with 4 pairs of setae, outer posteroangular setae shorter than inner pair. Prosternal basantra granulate, with one pair of setae; fernal plates large with slender median connection (Fig. 74). Metanotal sculpture transverse at anterior, linear on posterior half (Fig. 73). Fore wing first vein with 3 + 2 setae on basal half, 3 widely spaced setae on distal half; second vein with 5 to 7 widely spaced setae; clavus with 4–5 marginal but no discal setae (Fig. 73). Hind tibia with row of stout setae on inner margin. Tergal sculpture weak, particularly medially; I with microtrichia on sculpture lines; II with 4 lateral marginal setae; II–VIII with campaniform sensilla close to posterior margin ( Fig. 77 ); craspedum narrow medially on I, broad on II–VIII, with long prominent teeth on VII–VIII; tergites VI–VIII with prominent microtrichia on 3 or 4 lines of sculpture; IX with 2 pairs of campaniform sensilla, median dorsal setae small and slender. Sternites II–VII with transverse row of 5–9 discal setae medially, craspedum of long teeth on II–VI complete medially, incomplete on VII ( Fig. 76 ).

Measurements (holotype female in microns). Body length 1400. Head length 105; width across eyes 125. Pronotum, length 135; maximum width 160; pa inner setae 60; pa outer setae 35. Fore wing length 550. Metanotal median setae 25. Tergite IX, median dorsal setae 20; setae S1 120; S2 175. Tergite X setae S1 165. Antennal segments III–VIII length 37, 32, 35, 50, 10, 13.

Material studied. Holotype female, Western Australia, Kununurra, Frank Wise Institute , from grasses, 24.ii.2005 ( LAM 4586 ).

Comments. The single female from which this species is described has the tergal and sternal craspeda more strongly toothed than in M. flavus . The right antenna of this specimen is probably aberrant with the terminal segments fused, and ocellar setae III are presumably lost rather than minute (Fig. 72).

Figures

FIGURES 76 – 85. Grass living Thripinae. Monothrips cuspis 76 – 77: (76) sternites V – VII; (77) tergites VI – VIII. Monothrips flavus 78 – 79: (78) sternites V – VII; (79) tergites VI – VIII. (80) Stenchaetothrips bambusicola, head & thorax. Stenchaetothrips biformis 81 – 83: (81) antenna; (82) tergites VI – VIII; (83) head. Sten. bambusicola 84 - 85: (84) female sternites V-VII; (85) tergites VI – VIII.