Scolothrips

Masumoto, Masami, Ohno, Suguru, Ganaha-Kikumura, Tomoko, Miyagi, Akiko & Okajima, Shûji, 2012, Review of the genus Scolothrips (Insecta, Thysanoptera, Thripidae) from Japan, Zootaxa 3183 (1), pp. 36-48 : 38

Key to Scolothrips species from Japan (adult females)

1. Body strongly bicoloured, with red internal pigments before KOH treatment; fore wing dark at base ( Fig. 2 A); metascutum with narrow spaced longitudinal lines of sculpture ( Fig. 1 C).............................................. S. asura

-. Body uniformly white or yellowish white, often with greyish shadings but never bicoloured, without red internal pigments; fore wing hyaline at base ( Fig. 4 A); metascutum with widely spaced transverse lines of sculpture or reticulation ( Fig. 3 C)... 2

2. Pronotum with a pair of posteromedian discal setae ( Fig. 3 A); abdominal tergites each with small greyish spots near anterior angles and transverse shadings between these spots ( Fig. 4 B); abdominal tergite IX with small setae III (SS3) long, usually more than 75 μm ( Fig. 4 C).................................................................. S. rhagebianus

-. Pronotum with no discal setae ( Fig. 5 A); abdominal tergites often weakly shaded but never with such spots and markings; abdominal tergite IX with SS3 setae short, usually less than 35 μm ( Fig. 6 D)............................. S. takahashii

Figures

FIGURE 1. Scolothrips asura, female. A, Head and pronotum; B, antenna, right; C, metascutum; D, prosternal ferna and prospinasternum; E, tergites I – II (right side omitted). Scales: 0.04 mm.

FIGURE 2. Scolothrips asura, female (A − D) and male (E − F). A, Fore wing, right (marginal fringe hairs omitted); B, tergite VI, right side; C, tergites VIII-X; D, sternite VII; E, tergite IX (MD setae irregularly lost); F, sternites VII – VIII (sculpture omitted, VIII with additional setae). Scales: 0.04 mm.

FIGURE 3. Scolothrips rhagebianus, female. A, Head and pronotum; B, antenna, right; C, metascutum; D, prosternal ferna and prospinasternum; E, tergites I – II (right side omitted). Scales: 0.04 mm.

FIGURE 4. Scolothrips rhagebianus, female (A − C) and male (D − E). A, Fore wing, right, (marginal fringe hairs omitted), holotype of indicus; B, tergite V I (right side omitted); C, tergites VIII – XI, mid-dorsal seta (MD), seta 1 (S 1), seta 2 (S 2), seta 3 (S 3), small seta 3 (SS 3); D, tergite IX, mid-dorsal seta (MD); F, sternite VII (sculpture omitted). Scales: 0.04 mm.

FIGURE 5. Scolothrips takahashii, female. A, Head and pronotum; B, mesonotum and metascutum; C, prosternal ferna and prospinasternum; D, tergites I – II (right side omitted). Scales: 0.04 mm.

FIGURE 6. Scolothrips takahashii, female (A − D) and male (E − F). A, Fore wing, right (marginal fringe hairs omitted); C, antenna, right; D, tergites VIII – X; E, tergite IX; F, sternite VII (sculpture omitted). Scales: 0.04 mm.