Liothrips elongatus Dang & An & Mound & Qiao 2024, sp. n.
Creators: name: Dang, Lihong
name: An, Yiyan
name: Mound, Laurence A.
name: Qiao, Gexia
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Thysanoptera
Phlaeothripidae
Liothrips
Liothrips elongatus

description: Liothrips elongatus sp. n.
(Figs 3, 31, 45, 54, 59, 77, 95)
Female macroptera. Body brown; all femora brown, fore tibiae light brown medially with base and apex yellow, mid and hind tibiae brown with apices yellow, all tarsi yellow; antennal segments I–II brown, but II pale at apex, III–IV largely yellow with apices shaded, V–VI yellow at basal half, shaded at apical half, VII–VIII lightly brown (Fig. 31); major setae dark; fore wing pale, shaded at base, with a median dark stripe.
Head twice as long as wide (Fig. 3); postocular setae blunt, scarcely reaching to posterior margin of eyes; eyes equal dorsally and ventrally; maxillary stylets retracted to lower part of head, not reaching postocular setae (Fig. 3); mouth cone short and round. Antennal segments elongate, III about 4 times as long as apical width (Fig. 31); IV with 3 major sense cones, VIII distinct from VII. Pronotum transverse, with 4 pairs of long blunt setae, am scarcely larger than discal setae (Fig. 45); surface weakly sculptured. All legs slender. Fore wing with 3 blunt sub-basal setae arising in straight line, almost equal length, with 14 duplicated cilia. Mesonotum transversely reticulate, lateral setae well-developed, blunt. Metanotum weakly sculptured with longitudinal reticles, major setae slender and acute (Fig. 77). Mesopresternum with paired lateral triangles (Fig. 54), metathoracic sternopleural sutures short. Pelta broadly triangular, weakly reticulate, with pair of CPS (Fig. 77); tergite II with 9–12 pairs of lateral setae; tergite VIII posterolateral setae well-developed, shorter than posteroangles; tergite IX setae S1–S3 slightly shorter than tube, acute at apex; tube shorter than head, anal setae slightly shorter than tube.
Measurements (holotype female in microns). Body length 3900. Head length (maximum width) 450 (215); postocular setae length 65; antennal segments I–VIII length (width): 50 (45), 70 (35), 155 (35), 150 (45), 140 (30), 125 (30), 75 (25), 40 (15); sense cone on III length 65. Pronotum length (width) 200 (350); am 5, aa 40, ml 40, epim 150, pa 120. Fore wing length 1500; sub-basal setae S1 90, S2 130, S3 130. Tergite VIII posterolateral setae 115; tergite IX setae S1 330, S2 300, S3 225; tube length 370, basal width 95, apical width 55; anal setae length 310.
Male macroptera. Similar to female in colour and sculpture; pronotal am slightly short than aa, but much shorter than other major setae; abdominal tergite II with 8–9 pairs of lateral setae; tergite IX setae S2 short, slightly blunt at apex; sternite VIII largely occupied by pore plate (Fig. 95).
Measurements (paratype male in microns). Body length 3350. Head length (maximum width) 390 (200); postocular setae length 65. Pronotum length (width) 180 (325); am 15, aa 25, ml 75, epim 130, pa 105. Tergite IX setae S1 310, S2 100, S3 360; tube length 335, basal width 95, apical width 50; anal setae length 310.
Specimens studied. Holotype female, China, Yunnan, Kunming garden, 29.ix.2010, Laurence Mound (SNUT).
Paratypes: 2 males with the same data as holotype (SNUT & ANIC); Yunnan, Chenggong, 1 male, 8.viii.2010, Hongrui Zhang (ANIC).
Etymology. The species epithet refers to the elongate head and antennae.
Comments. This is the second known species with tergite II bearing numerous discal setae laterally, and as in L. takahashii it has short stylets. However, it has an elongate head and antennae (Figs 3, 31), short postocular setae (Fig. 3) and small pronotal aa and am setae (Fig. 45) and is easily distinguished from L. takahashii.
description: Published as part of Dang, Lihong, An, Yiyan, Mound, Laurence A. & Qiao, Gexia, 2024, Leaf-feeding species of the genus Liothrips from China (Thysanoptera, Phlaeothripinae), pp. 53-84 in Zootaxa 5419 (1) on pages 65-66, DOI: 10.11646/zootaxa.5419.1.2, http://zenodo.org/record/10781919