Phlaeothrips, Haliday

Okajima, Shûji & Masumoto, Masami, 2024, The genus Hoplandrothrips and its relatives (Thysanoptera: Phlaeothripidae) from Southeast Asia and Taiwan, Zootaxa 5489 (1), pp. 22-91 : 56

Key to Phlaeothrips species from Vietnam

1. Antennal segments III–VIII largely brown ( Fig. 273 ); antennal segment VIII constricted basally, pedicellate, segments III–VI with short apical neck; mouth cone short and rather pointed, not reaching prosternal ferna ( Fig. 276 ); fore wing with more than 45 duplicated cilia; pelta trapezoidal ( Fig. 274 ); abdominal tergites II–VI each with two pairs of sigmoid wing-retaining setae; sternite VIII of male with arched narrow pore plate............................................ annamensis sp. n.

- Antennal segment III yellow on basal 1/2, brown on distal 1/2 ( Fig. 285 ), segments IV–VI brown with pedicels yellowish; antennal segment VIII not constricted basally ( Fig. 286 ), cone-shaped, segments III–VI truncate at apex; mouth cone long, reaching prosternal ferna ( Fig. 287 ); fore wing with less than 30 duplicated cilia; pelta bell-shaped ( Figs 282 & 283 ); abdominal tergites II–VII each with two pairs of sigmoid wing-retaining setae; sternite VIII of male without pore plate.................................................................................................... tonkinensis sp. n.

Figures

FIGURES 271–278. Phlaeothrips annamensis sp. n., male. (271) Head, prothorax and fore leg, large male; (272) head, prothorax and fore leg, small male; (273) antenna; (274) metanotum and pelta, large male; (275) metanotum, small male; (276) prosternum and mesopresternum; (277) sub-basal wing setae; (278) tube.

FIGURES 279–288. Phlaeothrips tonkinensis sp. n. (279) Head and prothorax, female; (280) head, prothorax and fore leg, male; (281) fore tibia and tarsus, female; (282) metanotum and pelta, female; (283) pelta, male; (284) tube, female; (285) antennal segments III–IV, female; (286) antennal segments III–VIII, female; (287) prosternum and mesopresternum, female; (288) sub-basal wing setae, female.