Thrips flavus Schrank

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 : 29

Thrips flavus Schrank

( Figs. 104–108 )

Female macroptera. Body including legs uniformly yellow; antennal segments I to II yellow, III to IV brown often with basal half pale, V yellow with distal third brown, VI brown often with basal fourth pale; VII to VIII brown; fore wings uniformly pale. Ocellar setae III just behind fore ocellus ( Fig. 104 ). Antennae ( Fig. 105 ) 7- or 8- segmented. Metascutum ( Fig. 106 ) sculptured with longitudinal anastomosing striae except anteromedially, lines of sculpture not convergent to middle at posterior margin; median pair of setae far from anterior margin; CPS present. Fore wing first vein with seven basal and three distal setae. Abdominal tergites II with 4 lateral marginal setae; tergite VIII with posteromarginal comb complete; tergite IX with 2 pairs of CPS; sternites without discal setae; sternite I without microsetae anteromedially; sternite VII with S1 setae far from posterior margin; pleurotergites without discal setae and ciliate microtrichia.

Male macroptera. Body colour same as female. Antennal segment VI with more 20 setae. Abdominal tergite VIII ( Fig.107 ) with a few posteromarginal comb medially; tergite IX with S1 setae slightly ahead of level of S2 setae and subequal length to S2 setae, slightly closer to S2 setae than each other; sternites III to VII each with an oblong pore plate ( Fig. 108 ).

Comments. This species is the most abundant flower-living species in Japan and is widespread in the Palearctic region. It can be found on many kinds of plants from Hokkaido to Kyushu and Shikoku. This species can be distinguished relatively easily from other members of the genus by the position of ocellar setae III and antennal coloration .

Figures

FIGURES 104–115. Thrips species. T. flavus, female 104–106: (104) Head & pronotum; (105) Antenna, right; (106). Metascutum. T. flavus, male 107–108: (107) Tergites VIII–IX, sculpture omitted: (108) Sternite VII, sculpture omitted. T. floreus, female 109–115: (109) Head & pronotum; (110) Antenna, right; (111) Mesonotum & metascutum; (112) Tergite V & pleurotergite, right side; (113) Tergites VIII–X. T. floreus, male 114–115: (114) Tergites VIII–IX; (115) Sternite VI.