Bactrothrips pictipes Haga & Okajima

Dang, Lihong & Qiao, Gexia, 2012, The genus Bactrothrips in China (Thysanoptera: Idolothripinae): morphological and molecular data, and a key with two new species, Zootaxa 3449, pp. 47-61 : 58-59

Bactrothrips pictipes Haga & Okajima

( Fig. 34 )

Bactrothrips pictipes Haga & Okajima, 1989: 15 .

Bactrothrips brevitubus zhamanus Han & Zhang, 1981: 298 . Syn. n.

Described originally from Japan, this species was subsequently recorded from Taiwan, China by Okajima (2006), and is here recorded for the first time from the Chinese mainland. The species is similar to B. quadrituberculatus (Bagnall) , but can be distinguished by interocellar setae longest and longer epima (about as long as half of epim), and the genetic distance of COI sequences between them averaged 0.099 (range=0.098–0.100). In addition, the species has a close relationship to B. furvescrus with genetic distance averaged 0.088 (range=0.086–0.090), but is distinguished by the tibia color; B. pictipes is bicoloured, yellow and dark brown, whereas B. furvescrus is uniformly dark brown.

Han & Zhang (1981) described B. brevitubus zhamanus from Tibet, China, and Haga & Okajima (1989) indicated that this subspecies is very similar to B. brevitubus . We studied the holotype of zhamanus, and regard it as a Tibetan population of B. pictipes . This holotype has four sense-cones on the right antennal segment IV but only three in the left, and it is obvious that one sense-cone has been lost during slide making.

Material examined. CHINA: holotype male of zhamanus, Tibet (Nielamu County, Zhangmu Town), 7.i.1975, F.S. Huang; Guangxi Auto. Reg. (Maoer Mountain), 1 female on dried-up hanging tree leaves, 3.vi.2011, L.H. Dang; Guangxi Auto. Reg. (Huaping County), 1 female on dried-up hanging tree leaves, 7.vi.2011, L.H. Dang; Hainan Prov. (Limu Mountain), 4 females on dead tree leaves, 6.iv.2010, M.Y. Lin; Hainan Prov. (Baisha County), 2 females on dead tree leaves, 15.iv.2010, M.Y. Lin; Hainan Prov. (Xinglong County), 2 females on withered leaves, 16.iv.1963, B.L. Zhang.

Distribution. China (Guangxi, Tibet, Hainan, Taiwan); Japan.

Figures

FIGURES 31 – 37. Bactrothrips spp. Dorsal view of head: 31, B. brevitubus; 32, B. flectoventris; 33, B. honoris; 34, B. pictipes; 35, B. quadrituberculatus; 36, B. elongatus n. sp.; 37, B. furvescrus n. sp. Scale bars = 100 μm.