Genera and species of the Liothrips lineage (Thysanoptera, Phlaeothripinae) from Taiwan Author Wang, Chin-Ling 0000-0003-0776-2481 Taiwan Agricultural Research Institute, Wufeng, Taichung, 41362, Taiwan, ROC. & https: // orcid. org / 0000 - 0003 - 0776 - 2481 Author Lin, Feng-Chyi Taiwan Agricultural Research Institute, Wufeng, Taichung, 41362, Taiwan, ROC. text Zootaxa 2020 2020-10-19 4861 3 349 375 journal article 9039 10.11646/zootaxa.4861.3.3 7a19aeba-3ce6-471a-ad6a-ea27f47927fb 1175-5326 4416377 499A8821-6E33-4876-8E95-A6BC495D1C39 Liothrips heptapleuricola (Takahashi) ( Fig. 35–42 ) Smerinthothrips heptapleuricola Takahashi, 1937: 341–343 . Female macroptera . Body length 2.1–2.3 mm . Color brown; antennal segments I and II brown, same colour as head, except distal portion of II yellowish, III–VI and basal 1/3 of VII yellow, most of VII and VIII greyish brown; all femora brown, fore tibiae yellow, mid and hind tibiae brown, except apices yellow, all tarsi yellow; fore wings pale brown with a darker stripe; major body setae brown. FIGURES 35–42. Liothrips heptalpleuricola : (35) head; (36) mouth cone; (37) pronotum; (38) pelta; (39) mesopresternum; (40) tergite II; (41) tube; (42) shape of antenna. Head 1.3 times as long as wide ( Fig. 35 ), with regular reticulation on dorsum anterior to and between eyes, followed by transverse reticles; cheeks with 3–4 pairs of short setae, po setae blunt, shorter than length of eyes; maxillary stylets retracted to level of po setae, about 1/5 of head width apart; mouth cone wide and rounded ( Fig. 36 ); antennal segment III 1.5 times, segment IV 1.3 times as long as II ( Fig. 42 ). Pronotum with 5 pairs of major setae ( Fig. 37 ), all blunt, aa setae longer than am setae, shorter than other pairs; mesopresternum boat shape, some with irregular margins ( Fig. 39 ); metanotal sculpture dense and longitudinal; fore wing with 11–15 duplicated cilia. Pelta triangular, 2–4 short setae on each side ( Fig. 38 ), CPS absent; tergite II laterally with 3–4 accessary setae ( Fig. 40 ), tube straight-sided, about same length as head ( Fig. 41 ). Male macroptera . Body length 1.8–2.0 mm; colour and shape similar to female. Specimens examined. Taiwan , Taihoku ( Taipei ), Syntype 16 females , 7 males , from leave galls of Heptapleurinum arboricolum, 31.x.1936 (Takahashi) ; 15 females , 5 males , Lianhuachi ( Nantou ), from Schefflera arboricola , 27.ix.1992 . Comments. As indicated above, Takahashi described this species from specimens taken on leaves of Heptapleurinum arboricolum (= Schefflera arboricola ) at Sozan near Taihoku. Specimens deposited in TARI have the same data as with the original type description, and these specimens are here assumed to be syntypes . Takahashi pointed out that this species differs from heptapleurinus in two insignificant characters: colour of the leaf galls and shapes of the mouth cone ( Takahashi 1937 ). Our further studies showed that these two species can be distinguished as follows: heptapleuricola po setae about 0.5 as long as dorsal length of eyes; pronotal am setae shorter than aa setae; pelta without CPS but with setae present laterally. In contrast, heptapleurinus po setae are longer than eyes; pronotal am setae are longer than aa setae; pelta is with CPS but without setae laterally.