Tsutsumiothrips, Masumoto & Okajima, 2013

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 : 59

Tsutsumiothrips gen. n.

Type species: Tsutsumiothrips ryukyuensis sp. n.

Female. Wings fully developed. Ocellar setae I absent, setae II distinctly longer than setae III ( Fig. 267 ). Postocular setae six pairs. Compound eyes without pigmented ommatidia. Maxillary palpi 3-segmented. Antennae ( Fig. 268 ) 7-segmented, segment I without median dorsal apical setae, III and IV with sensoria forked, III to VI with some rows microtrichia on both dorsal and ventral surfaces. Pronotum ( Fig. 267 ) with 2 pairs of posteroangular setae well developed. Mesonotum with median pair of setae far from posterior margin. Metascutum sculptured with longitudinal striae except median anterior third; median pair of setae behind anterior margin. Metaepimeron with two setae. Metaepisternum with setae. Metapre-episternum developed with two setae. Prosternal ferna weakly connected at middle; basantra membranous, without setae; prospinasternum broad and transverse. Mesosternum with sternopleural sutures complete; endofurca with spinula weak; metasternal endofurca without spinula. Fore wing first vein with long gap in setal row, second vein with many setae evenly spaced; clavus with five veinal and one discal seta; posteromarginal fringe cilia wavy. Tarsi 2-segmented. Abdominal tergites I to VIII ( Fig. 269 ) with large dentate posteromarginal craspeda except middle of tergite I; tergites V to VIII with paired ctenidia, each ctenidium mesad of spiracles on tergite VIII; tergite X with longitudinal median split almost complete; sternites ( Fig. 270 ) without discal setae, II to VII with large dentate posteromarginal craspeda except middle of sternite VII; sternites III to VII with 3 pairs of posteromarginal setae, but II with 2 pairs; sternite VII with S1 and S2 setae in front of posterior margin; pleurotergites without discal setae, and with posteromarginal craspeda as tergites and sternites. Ovipositor developed.

Male. General structure same as female. Abdominal sternites III to VII ( Fig. 271 ) each with a large oblong pore plate; sternites VII with posteromarginal craspeda throughout.

Comments. This genus is has intermediate character states between Fulmekiola and Stenchaetothrips but there are some differences among these genera discussed above.

Etymology. In reference to Dr. Tsutsumi Tadaaki who collected the species for the first time.

Figures

FIGURES 267–271. Tsutsumiothrips ryukyuensis gen. et sp. n., female 267–269: (267) Head & pronotum; (268) Antenna, right; (269) Tergites VII–VIII, sculpture omitted at right side; (270) Sternites VI–VII, sculpture omitted. (271) Sternite VI, male, sculpture omitted.