Aeolothrips fasciatus (Linnaeus)

Masumoto, Masami & Okajima, Shûji, 2019, Review of the Aeolothripidae (Thysanoptera) in Japan, Zootaxa 4564 (2), pp. 301-326 : 303-304

publication ID 10.11646/zootaxa.4564.2.1

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Aeolothrips fasciatus (Linnaeus)


Aeolothrips fasciatus (Linnaeus) View in CoL

( Figs 1, 2 View FIGURES 1–7 , 15 View FIGURES 15–24 , 25–33 View FIGURES 25–33 )

Thrips fasciata Linnaeus, 1758: 457.

Diagnosis. Female macroptera. Body uniformly dark brown ( Fig. 1 View FIGURES 1–7 ); antennal segments I and IV–IX brown, II brown with apex slightly pale, III yellowish white with brown extreme apex; fore wings with two independent dark bands, apex white, extreme base slightly shaded, vein not shaded on pale area ( Fig. 15 View FIGURES 15–24 ); all legs dark brown; prominent body setae brown. Head slightly longer than wide, weakly arched at cheeks ( Fig. 25 View FIGURES 25–33 ). Antennal segment V subequal in length to combined length of VI–IX ( Fig. 26 View FIGURES 25–33 ). Pronotum with no long and stout setae. Mesonotum with lateral setae much longer and stouter than median pair of setae; anteromedian CPS present ( Fig. 27 View FIGURES 25–33 ). Metascutum with polygonal reticulations medially; CPS present. Abdominal sternite VII with two pairs of accessory setae much anterior to posterior margin between S1 and S2 setae, interval between S1 setae much wider than interval between S1 and S2 setae ( Fig. 29 View FIGURES 25–33 ); spermatheca without internal teeth or with a few internal teeth at each side and often also medially ( Fig. 30 View FIGURES 25–33 ).

Male macroptera. Body smaller and paler than female, pronotum yellowish brown, abdominal segments II–VI paler ( Fig. 2 View FIGURES 1–7 ). Mid coxae each with transverse ridges and a large tooth-like tubercle ventrally ( Fig. 31 View FIGURES 25–33 ). Abdominal tergites III–V with paired small posteromarginal tubercles, tubercles vestigial on III ( Fig. 32 View FIGURES 25–33 ); tergite IX with bifurcate claspers, S1 setae close to each other, and much longer than and much anterior to S2 setae, S3 setae much longer than clasper, ventrolateral setae slender slightly curved ( Fig. 33 View FIGURES 25–33 ).

Specimens examined. JAPAN: Hokkaido, Hakodate City, 1 female on clover flower, 9.viii.1989, T.Nonaka (TUA); Abashiri City, Misaki, 1 female on Poaceae , 10.viii.2006 (TUA); Rumoi City, Chibaberi, 1 female on flower of Vicia cracca [ Leguminosae ], 18.vii.2006 (TUA); Horonobe-cho, Nishi-toikanbetsu, 1 female on flower of Vicia cracca , 18.vii.2007, all T.Nonaka. Honshu, Aomori Pref., Hachinohe City, 1 female on Artemisia princeps [ Compositae ], 7.viii.1997, T.Tsutsumi (FU). Nagano Pref., Sugadaira: 1 female on Lysmachia, 18.vii.1973, K.Haga (TUA). 1 female on Angelica pubescens [ Apiaceae ], 24.v.1995, T.Tsutsumi (FU). Norikura-kugen, 1 female on Composite flower, 21.viii.2006, M.Masumoto (TUA). Gunma Pref., Katashina-mura (alt. about 1500m), 5 females on flower of Prunella vulgaris asiatica [ Lamiaceae ], 24.viii.2014, M.Masumoto (TUA). Yamanashi Pref., nr. Fujiyoshida, 3 females & 3 males on grass, 30.vii.1981, S.Okajima (TUA). Yamanashi Pref., Kitakoma-gun, Sudama-cho, Kanayama, 1 female & 5 males on grass, 8.vii.1994, S.Okajima (TUA).

Remarks. This species is widespread in the Holarctic region and introduced to Australia and New Zealand. Some European records are probably misidentifications of the European species A. intermedius , this is also true for the Asian species A. mongolicus . Moreover, some North American records are probably A. auricestus ( Hoddle et al. 2012) . In Japanese specimens, the spermatheca has several weak internal teeth, whereas there are no such teeth in European specimens ( Bhatti, 1988; Alavi et al., 2018). Further revisional study is needed for fasciatus . In Japan, A. fasciatus is found on flowers in the northern or mountainous areas. It is probably a facultative predator, feeding on pollen and the larvae of other thrips ( Hoddle et al. 2012).

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