Bamboosiella longisetis , Dang, Li-Hong & Qiao, Ge-Xia, 2016

Dang, Li-Hong & Qiao, Ge-Xia, 2016, Species of the Poaceae-associated genus Bamboosiella (Thysanoptera, Phlaeothripidae) from China, with three new species, Zootaxa 4184 (3), pp. 541-552: 547-548

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Bamboosiella longisetis


Bamboosiella longisetis  sp.n.

( Figs 10View FIGURES 7 – 12, 17, 25View FIGURES 13 – 28, 38, 45View FIGURES 29 – 46, 54View FIGURES 47 – 54, 62View FIGURES 55 – 66)

Female macroptera. Small body, bicoloured ( Fig. 62View FIGURES 55 – 66); head brown, but thorax yellow with sides shaded; abdominal segments I–VIII yellow, median area of III–VII faintly shaded, IX yellowish brown and tube brown ( Fig. 17View FIGURES 13 – 28); antennal segments I–II and IV–VIII brown, II at apex, III and base of IV–VI yellow; all legs yellow; wings slightly shaded.

Head almost as long as wide, dorsal surface smooth with weak sculptures posteriorly; postocular setae well developed, but shorter than eye, pointed apically ( Fig. 10View FIGURES 7 – 12); cheeks weakly rounded; mouth-cone short and pointed, maxillary stylets wide apart, restricted to mouth-cone; antennae about 1.7 times as long as head, segment VIII constricted at base, III and IV with 1+1 and 1+2 1 sense cones respectively ( Fig. 17View FIGURES 13 – 28). Pronotum smooth, 4 pairs of major setae well developed, pointed apically but the longest epim expanded apically, am reduced to minute setae ( Fig. 10View FIGURES 7 – 12); notopleural sutures complete; basantral plates weakly present, membranous; mesopresternum complete, narrowed at middle; metanotum with reticulate sculpture, median setae well-developed, pointed apically; metathoracic sternopleural sutures absent; forelegs normal, fore tarsal tooth absent; fore wing slightly constricted at middle, with 4 duplicated cilia, subbasal wing setae well developed, S1 almost as long as S2, expanded apically, S3 the longest, pointed apically ( Fig. 45View FIGURES 29 – 46). Pelta hat-shaped ( Fig. 38View FIGURES 29 – 46); abdominal tergites II–VII each with two pairs of wing retaining setae; tergite IX setae S1 as long as S2, S3 the longest, shorter than tube with apices pointed ( Fig. 54View FIGURES 47 – 54); tube slightly shorter than head, anal setae about 2.0 times as long as tube ( Fig. 54View FIGURES 47 – 54).

Measurements (holotype female). Body length 1900. Head length 210, from anterior margin of eyes 190, width across eyes 190; eye length 80; antenna length 350, segments I–VIII length (width): 30(35), 45(30), 50(30), 55(30), 50(25), 50(25), 40(20), 30(10). Pronotum length 140, width across median part 200; length of major setae: aa 10, am 5, ml 15, pm 5, pa 25, epim 30; fore femur width 110; fore wing length 730, subbasal setae S1–S3 length: 30, 30, 25. Pelta length 55, width at base 75, width at apex 40; tergite IX length 60, S1–S3 length 70, 75, 85; tube length 100, width at base 60, at apex 30; anal setae length 210.

Male. Unknown.

Material studied. Holotype female, China, Yunnan, Mengla County, 20.xi.1988, dead leaves of bamboo, Yun-fa Han  ; paratypes: 2 females with same data as holotype  .

Etymology. This species is named in two Latin words, “ longus ” and “ seta ”, based on the long anal setae.

Comments. This new species is somewhat similar to exastis  , but they can be distinguished by the body colour of pronotum and abdominal segments (in longisetis  the pronotum is obvious lighter than the brown head ( Fig. 62View FIGURES 55 – 66) and abdominal segments I–VIII yellow, in exastis  the pronotum is concolorous with the head and only abdominal segments I–VI yellow). The species also differs from exastis  in the anal setae about 2.0 times longer than the tube ( Fig. 54View FIGURES 47 – 54), whereas in exastis  the anal setae are slighter shorter than the tube.