Bamboosiella rugata

Zhao, Chao, Wang, Zhaohong & Tong, Xiaoli, 2018, Three new species and three new records of the genus Bamboosiella from China (Thysanoptera: Phlaeothripidae), Zootaxa 4514 (2), pp. 167-180: 172-174

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Bamboosiella rugata

sp. n.

Bamboosiella rugata  sp. n.

( Figs 13–19View FIGURES 13–19, 33, 34View FIGURES 31–36)

Female macroptera ( Fig. 33View FIGURES 31–36). Body bicolored yellow and brown; head and thorax brown; abdominal segments I–IX yellow except for IX tinged with pale brown on basal half, III–VIII each with a pale brown marking anteromedially ( Fig. 33View FIGURES 31–36), tube brown with extreme base paler; fore and mid femora brown with yellow apices, hind femora yellow; all tibiae and tarsi yellow; antennal segments ( Fig. 19View FIGURES 13–19) I–II brown and concolorous with head, III yellow, IV–VI pale brown with yellow at basal half, VII–VIII brown; wings weakly shaded with grey medially.

Head ( Fig. 13View FIGURES 13–19) almost as long as broad; dorsal surface with distinct transverse sculpture, with polygonal reticulation between eyes; cheeks weakly convex; eyes large, approximately half of head length; postocular setae well developed with expanded apex, but distinctly shorter than eyes; ocelli developed; postocellar setae minute, much shorter than diameter of hind ocellus, pointed apically. Antennae 8-segmented ( Fig. 19View FIGURES 13–19), approximately 2 times as long as head; segments III and IV with 1+1 and 1+2 sense cones respectively; segment VIII constricted at base.

Pronotum ( Fig. 14View FIGURES 13–19) dorsal surface weakly sculptured laterally and posteriorly, notopleural sutures complete; five pairs of major setae well developed and expanded apically, am as long as aa. Mesonotum sculptured with distinctly transverse reticulation, and a pair of long lateral setae with expanded apically. Metanotum ( Fig. 15View FIGURES 13–19) sculptured with closely set longitudinal reticulation, median setae short and acute. Basantra weakly developed; mesopresternum complete and boat-shaped, narrowed at middle. Fore tarsal tooth absent. Fore wing slightly constricted at middle, with 4–5 duplicated cilia; three pairs of sub-basal setae well developed and expanded at apex, S1 slightly shorter than S2, S2 and S3 subequal in length ( Fig. 17View FIGURES 13–19).

Pelta ( Fig. 16View FIGURES 13–19) hat-shaped with irregular sculpture and podgy lateral lobes, a pair of campaniform sensilla present; abdominal tergites II–VII each with two pairs of sigmoid wing retaining setae, anterior pair weaker than posterior pair; tergite IX setae S1 slightly shorter than S2, but both shorter than tube and blunt at apex, S3 longest ( Fig. 18View FIGURES 13–19). Tube approximately 0.8 times of head length; anal setae shorter than tube.

Measurements (holotype female in microns). Distended body length 1530. Head length 160, width 165; eyes length 72; postocular setae length 50; diameter of anterior (posterior) ocelli 18; postocellar setae length 11. Antennae length 303, segments I–VIII length (width) as follows: 23(30); 36(27); 40(28); 49(25); 44(22); 42(19); 37(18); 32(10). Pronotum median length 105, width across median part 220; length of major setae: am 40, aa 40, ml 45, pa 45, epim 55. Fore wing length 645, sub-basal setae S1–S3 length: 42, 46, 46. Metanotum median setae 10. Abdominal tergite IX S1 setae length 72, S2 setae length 90, S3 setae length 110. Tube length 130, width at base 53, at apex 26; anal setae length 90.

Male macroptera ( Fig. 34View FIGURES 31–36). Similar in colour and structure to female, but smaller, abdominal tergite IX setae S2 much shorter than S1 and S3.

Measurements (paratype male in microns). Distended body length 1380. Head length 145, width 145; eyes length 68; postocular setae length 41; diameter of anterior (posterior) ocelli 18; postocellar setae length 11. Antennae length 272, segments I–VIII length (width) as follows: 21(27); 30(25); 37(25); 40(24); 40(20); 38(18); 36(16); 30(10). Pronotum median length 90, width across median part 195; length of major setae: am 38, aa 36, ml 38, pa 40, epim 46. Fore wing length 570, sub-basal setae S1–S3 length: 36, 40, 40. Metanotum median setae 9. Abdominal tergite IX S1setae length 67, S2 setae length 43, S3 setae length 95. Tube length 110, width at base 50, at apex 24; anal setae length 90.

Material examined. Holotype female, CHINA, Guangdong: Guangzhou City, Conghua, Liangkou Town , Lingtouqiao (23°13'18"N, 113°12'39"E), on tender leaves of bamboo, 30.x.2011 (Tao Song).GoogleMaps 

Paratypes. 2 females and 2 males, collected with holotypeGoogleMaps  .

Etymology. Specific epithet from Latin word rugatus means wrinkled, referring to the dorsal surface of head covered with reticulated wrinkles entirely in the new species.

Distribution. China (Guangdong).

Remarks. This new species is very similar to B. flavescens Okajima  , but it can be distinguished from the latter by the following characters: (1) dorsal surface of head with reticulation entirely, while the dorsal surface of head smooth medially in flavescens  ; (2) pronotal am as long as aa, in contrast to the am much longer than aa in flavescens  ; (3) sub-basal wing setae S2 and S3 sub equal in length, while in flavescens  , the S2 much shorter, about half of S3 length; (4) abdominal segments III–VIII each with a pale brown marking anteromedially ( Figs 33, 34View FIGURES 31–36), but flavescens  has no such brown markings on segments III–VIII.