Neohydatothrips John, 1929

Masumoto, Masami & Okajima, Shûji, 2020, Two new species of Neohydatothrips John (Thysanoptera, Thripidae) from Japan with a record of micropterous N. elaeagni (Kudo), Zootaxa 4869 (3), pp. 404-412 : 405

Neohydatothrips John

Diagnosis. Wing usually developed. Head transverse, occipital region narrow ( Figs 10 & 18 ); ocellar setae pair I present; mouth-cone pointed and with 3-segmented maxillary palpi. Antennae 7 or 8-segmented, segment I without dorsal apical median setae, III and IV with forked sense-cones, III–VI with microtrichia on both dorsal and ventral surfaces, VI with sense-cones having elongate narrow base. Pronotum strongly sculptured with transverse striae or reticulate, usually with a distinguishable median large blotch. Prospinasternum very weak and narrow ( Fig. 20 ). Mesosternum with spinula. Metasternal plate T-shaped or shallowly concave at anterior margin. Fore wing first vein with complete or almost complete setal row, second vein with 1–2 setae near apex or no setae; posteromarginal cilia usually wavy. Abdominal tergites undivided from pleurotergites, tergites II–VII densely covered with microtrichia on at least lateral thirds ( Fig. 14 ); tergite VIII with complete posteromarginal comb; tergite IX with at least 4 pairs of robust posteromarginal setae, at least 2 pairs of MD setae; sternites usually with microtrichia at least laterally. Male with a pore plate on one or more abdominal sternites; tergite IX without drepanae.

Comments. This genus can be distinguished from Sericothrips by differences of the metanotal sculpture and the position of S1 setae on abdominal tergites other than fore wing length and the microtrichia distribution on abdominal tergites mentioned as below.

Figures

FIGURES 10–17. Neohydatothrips species. N. bicolor sp. n., female, 10–15: (10) Head–metanotum; (11) Antenna; (12) Metasternum; (13) Fore wing; (14) Abdominal tergites VI-XI; (15) Abdominal sternite V. N. elaeagni, female microptera, 16–17: (16) Meso- & metanota; (17) Abdominal tergites V–VI.

FIGURES 18–25. Neohydatothrips fascipennis, sp. n. Female, 18–24: (18) Head–metanotum; (19) Antenna; (20) Thoracic sterna; (21) Fore wing; (22) Abdominal tergites II–III, right side; (23) Abdominal tergites VI–XI; (24) Abdominal sternites VI–VII. (25) Abdominal sternite VII, male.