Tameothrips arundo Tyagi & Kumar

Tyagi, Kaomud, Kumar, Vikas & Chauhan, Neena, 2015, A new species of the genus Tameothrips Bhatti (Thysanoptera: Thripidae) with four new records of thrips from India, Zootaxa 4007 (2), pp. 283-289 : 284

Tameothrips arundo Tyagi & Kumar sp.n.

( Figs 1–2 , 7–15 )

Female macroptera. Body yellowish brown including legs; antennal segment I yellow, II–VIII dark brown; fore wing shaded ( Fig. 1 ). Head as long as broad; ocellar setae I present; ocellar III situated at the tangent of the ocellar triangle ( Fig. 7 ); eyes without pigmented facets. Antenna 8–segmented ( Fig. 13 ), segment VI without partial suture, segment III and IV each with forked sense cone. Pronotum with transverse lines of sculpture; two pairs of slightly well-developed posteroangular setae; four pairs of posteromarginal setae. Mesonotum with anteromedian campaniform sensilla and transverse anastomosing sculpture lines, median pair of setae far ahead of posterior margin. Metanotum with reticulate sculpture, median pair of setae near to anterior margin; distance between median pair of metanotal setae greater than distance between median and submedian; campaniform sensilla present ( Fig. 10 ). Fore wing costa with 23–26 setae ( Fig. 15 ), first vein setae broadly interrupted with 3+3+2 to 4+3+1+2 setae, second vein with 9–10 setae; clavus with 4–5 marginal setae and one discal seta; apical seta longer than subapical seta. Abdominal tergites with a few transverse lines and campaniform sensilla; posterior margin of abdominal tergite VIII smooth; tergite IX with two pairs of campaniform sensilla ( Fig. 9 ), and S2 setae subequal to S1 and equidistant from each other; tergite X shorter than IX. Abdominal sternites and laterotergites II–VIII without discal setae ( Fig.14 ); sternite II with 2 pairs of posteromarginal setae; III–VII with 3 pairs of posteromarginal setae, median setae on VII far ahead of posterior margin ( Fig. 12 ).

Measurements in microns. Distended body length 1370. Head, length 133; width across eyes 123; width across cheeks 131. Pronotum, length 115; maximum width 170. Fore wing, length 620; median width 50. Tergite IX, MD setae 52–57; PM S1 setae 72–76, S2 setae 74–78. Tergite X PM S1 setae 65. Antennal segments I–VIII L(W): 17(23), 33(25), 40(19), 32(18), 28(18), 37(17), 5(8), 11(5).

Male macroptera. Body yellow including legs, antennal segments I–II pale, III–VIII dark brown ( Fig. 2 ); antennal segments I–II yellow, III–VIII dark brown. Structure similar to female. Abdominal tergite IX with a pair of horn-like drepanae ( Fig. 11 ); abdominal sternites III–VII without pore plate.

Material studied. Holotype female (macroptera), INDIA, Himachal Pradesh, Mandi, (31º44'42.6" N 076º56'28.8'E, 863 m) from Arundo donax, 16.x.2013, Tyagi & Kumar (Reg. No. 6812/H17). Paratypes: 10 females, 3 males with same data as holotype (Reg. No. 6813/H17 to 6825/H17). Holotype and paratypes deposited in the National Zoological Collections (NZC), Zoological Survey of India, Kolkata, India.

Comments. This grass living species can be distinguished from Tameothrips tamicola by the absence of partial suture on antennal segment VI, head as long as broad, body colour and colour of antennal segments. This species is unusual in chaetotaxy of pronotum, metanotum and abdominal tergite VIII; pronotum has two pairs of long posteroangular setae, median pair of setae on the metanotum near to the anterior margin and median pair of setae (S1) on abdominal tergite VIII less than half of the length of tergite. This new species is compared with the description provided by Bhatti (1978: 106) and Bagnall (1914: 273–274).

Figures

FIGURES 1 – 6. (1) Tameothrips arundo female; (2) Tameothrips arundo male; (3) Scirtothrips kenyensis, female; (4) Parabaliothrips takahashii, female; (5) Panchaetothrips noxius, female; (6) Helionothrips aino, female.

FIGURES 7 – 10. Tameothrips arundo, female (7) head & pronotum; (8) pterosterna; (9) tergites VIII – X; (10) meso-metanota.

FIGURES 11 – 15. Tameothrips arundo. (11) tergites IX – X, male; (12) sternite VII, female; (13) antenna, female; (14) lateral view of tergites V – VII, female (15) fore wing, female.