Bamboosiella antennatus, 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 : 543

Bamboosiella antennatus sp. n.

( Figs 11–12 , 19, 26 , 39, 46 , 58 )

Female macroptera. Small body, bicoloured ( Fig. 58 ); head and thorax brown; abdominal segments I–VIII yellow with sides of III–IV faintly shaded, IX yellowish brown and tube brown; antennal segments I–III and V yellow, IV and VI brown with yellow bases, VII–VIII brown; all coxae brown, all femora yellow with mid-femora brown at basal half, all tibiae yellow with median area shaded; wings slightly shaded.

Head almost as long as wide, dorsal surface smooth with weak sculpture posteriorly; postocular setae shorter than eye, expanded apically ( Fig. 11 ); cheeks weakly rounded; mouth-cone short and pointed, maxillary stylets wide apart, restricted to mouth-cone; antennae about 2 times as long as head, segment VIII not pedicellate, broadly joined to VII, III and IV with 1+1 and 1+2 1 sense cones respectively ( Fig. 19 ). Pronotum smooth, 4 pairs of major setae well developed, expanded apically, am reduced to minute setae ( Fig. 19 ); notopleural sutures complete; basantral plates absent; 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 3 duplicated cilia, subbasal wing setae well developed, expanded apically, S1 almost as long as S2, S3 the longest ( Fig. 46 ). Pelta hat-shaped ( Fig. 26 ); abdominal tergites II–VII each with two pairs of wing retaining setae; tergite IX setae S1 as long as S2, shorter than tube with apices expanded, S3 a little longer than tube, pointed apically ( Fig. 12 ); tube slightly shorter than head, anal setae almost as long as tube ( Fig. 12 ).

Measurements (holotype female). Body length 1600. Head length 150, from anterior margin of eyes 150, width across eyes 180; eye length 80; antenna length 300, segments I–VIII length (width): 30(35), 40(30), 45(25), 50(30), 45(25) 40(25), 35(20), 30(20). Pronotum length 100, width across median part 200; length of major setae: aa 20, am 5, ml 20, pm 5, pa 30, epim 40; fore femur width 80; fore wing length 590, subbasal setae S1–S3 length: 25, 25, 40. Pelta length 60, width at base 60, width at apex 50; tergite IX length 60, S1–S3 length 70, 55, 80; tube length 100, width at base 60, at apex 30; anal setae length 110.

Male. Unknown.

Material studied. Holotype female, China, Yunnan, Mengla County, 20.xi.1988, dead leaves of bamboo, Yun-fa Han.

A single paratype female with same data as holotype.

Etymology. This species is named in one Latin word, “antenna”, based on the unusual antenna.

Comments. This new species is distinguished from other Bamboosiella species by the special antennae with segments VII and VIII fused but separated by a complete suture ( Fig. 19 ). And antennal segment V yellow with IV and VI brown ( Fig. 58 ) in contrast to the graduated colour from III to VIII in other species.

Figures

FIGURES 7 – 12. Head, pronotum & fore legs: 7. semiflava; 8. varia; 9. magnus sp. n.; 10. longisetis sp. n.; 11. antennatus sp. n. Tergites IX – X: 12. antennatus sp. n.

FIGURES 13 – 28. Antenna: 13. fasciata; 14. magnus sp. n.; 15. exastis; 16. nayari; 17. longisetis sp. n.; 18. semiflava; 19. antennatus sp. n. Pelta: 20. bicoloripes; 21. fasciata; 22. flavescens; 23. semiflava; 24. magnus sp. n.; 25. longisetis sp. n.; 26. antennatus sp. n. Tergites IX – X of male: 27. exastis; 28. semiflava.

FIGURES 29 – 46. Antenna: 29. bicoloripes; 30. cingulata; 31. flavescens; 32. varia. Mesopresternum: 33. bicoloripes; 34. fasciata; 35. flavescens; 36. semiflava; 37. magnus sp. n.; 38. longisetis sp. n.; 39. antennatus sp. n. Base of fore wing: 40. bicoloripes; 41. fasciata; 42. flavescens; 43. semiflava; 44. magnus sp. n.; 45. longisetis sp. n.; 46. antennatus sp. n.

FIGURES 55 – 66. Body: 55. magnus sp. n.; 56. fasciata; 57. bicoloripes; 58. antennatus sp. n.; 59. exastis; 60. flavescens; 61. semiflava; 62. longisetis sp. n.; 63. nayari; 64. varia; 65. holotype of ‘ brevibristla ’; 66. paratype of ‘ brevibristla ’.