Thrips vitticornis Karny

Masumoto, Masami & Okajima, Shûji, 2013, Review of the genus <i> Thrips </ i> and related genera (Thysanoptera, Thripidae) from Japan, Zootaxa 3678 (1), pp. 1-65 : 58-59

Thrips vitticornis Karny

( Figs. 260–266 )

Female macropter a. Body uniformly pale brown to brown; antennal segments pale brown, III yellow; fore wings including clavus uniformly brown; all femora pale brown to brown, fore tibiae pale with outer margin shaded, mid and hind tibia pale brown or pale with outer margin shaded, all tarsi pale; prominent body setae brown. Head ( Fig. 260 ) rounded at cheeks, weakly sculptured within ocellar triangle. Ocellar setae III just outside margin of ocellar triangle and slightly longer than hind ocelli. Postocular setae along compound eye, all setae small. Antennae ( Fig. 261 ) 8-segmented, II without microtrichia, III to IV gently rounded at each side and without apical neck, IV to V pedicelate, VI the longest, widest near base and tapering to apex. Pronotum ( Fig. 260 ) distinctly sculptured with transverse striae, with more than 25 discal setae; posteroangular setae 2 pairs; posteromarginal setae 3 pairs, setae I the longest. Mesonotum with CPS anteromedially. Metascutum ( Fig. 262 ) sculptured with narrow spaced longitudinal striae, weak lines present between sculpture lines; median pair of setae at anterior margin, wide apart each other and close to submedian setae; CPS present, wide apart each other. Fore wing first vein with eight or nine basal and three to six distal setae, fourth seta of basal setae longer than remaining basal setae. Abdominal tergites II to VIII ( Fig. 263 ) with no lines of sculpture reaching at S1 setae; tergite II with 4 lateral marginal setae; tergite VIII without posteromarginal comb, or a few microtrichia present at each side; tergite IX with two pairs of CPS; sternite I without microsetae; sternite II with two discal setae; sternites III to VII ( Fig. 264 ) with 10–11 discal setae arranged in transverse row; sternite VII with S1 setae slightly (twice to three times as wide as diameter of setal base) far from posterior margin; pleurotergites without discal setae and ciliate microtrichia.

Male macroptera. Body colour similar to female. Antennal segment VI with almost same number of setae as female. Abdominal tergite VIII without posteromarginal microtrichia; tergite IX ( Fig. 265 ) with S1 setae small, at level of S2 setae, subequal in length to or slightly longer than S2 setae, closer to S2 setae than each other; sternal discal setae fewer than female; sternites III to VII ( Fig. 266 ) each with a broad transverse pore plate.

Specimens examined. JAPAN, Ryukyus, Iriomote-jima Is., river Aira-gawa , 2 females & 1 male on FIT trap, 12-x-2004, T . Ishikawa ( TUA) .

Distribution. Japan (Ryukyus.), widespread Southeast Asia, Australia and Pacific Islands.

Comments. This species is here newly recorded from Japan. This species may be associated with the flowers of Papilionaceae ( Mound & Masumoto, 2005) .

Figures

FIGURES 253–266. Thrips species. T. urticae, female 253–257: (253) Head & pronotum; (254) Antenna, right; (255) Metascutum; (256) Tergite V & left pleurotergite, sculpture omitted at right side; (257) Tergites VIII–X. T. urticae, male 258– 259: (258) Tergites VIII–IX, sculpture omitted; (259) Sternite V. T. vitticornis, female 260–264: (260) Head & pronotum; (261) Antenna, right; (262) Metascutum; (263) Tergite VIII; (264) Sternite VII, sculpture omitted. T. vitticornis, male 265–266: (265) Tergite IX; (266) Sternite VII, sculpture omitted.