Mycterothrips setiventris (Bagnall)

Okajima, Masami Masumoto And Shûji, 2006, A revision of and key to the world species of Mycterothrips Trybom (Thysanoptera, Thripidae), Zootaxa 1261 (1261), pp. 1-90 : 76-78

Mycterothrips setiventris (Bagnall)

( Figs. 126–133)

Physothrips setiventris Bagnall, 1918: 61–63 .

Taeniothrips setiventris (Bagnall) ; Steinweden, 1933: 278.

Mycterothrips setiventris (Bagnall) ; Bhatti, 1969: 378.

Diagnosis. Body almost uniformly brown to dark brown; fore wings brown with base and apex paler ( Fig. 129). Head with cheeks slightly rounded ( Fig. 126). Ocellar setae II long, about half length of setae III ( Fig. 126). Antennal segments III and IV with distal third narrowed and neck­like, segment VI widest near middle and tapering to apex ( Fig. 127). Pronotum with more than 60 discal setae ( Fig. 126). Mesonotum with a pair of CPS anteromedially; median pair of setae near posterior margin ( Fig. 128). Metascutum irregularly reticulated medially; median pair of setae near anterior margin ( Fig. 128). Abdominal terga II to VIII with numerous ciliate microtrichia on lines of sculpture, smooth medially ( Fig. 130); tergum II with four lateral marginal setae; terga VI to VIII with B4 setae minute ( Fig. 130); tergum IX with both anterior and posterior pairs of CPS; sternum II to VIII with 2–20 discal setae arranged in irregular line ( Fig. 131). Male with body paler than female, almost pale brown with abdominal segments VIII to X dark and terga VI to VII shaded medially. Antennal segment VI almost as long as that of female, with more setae than in female and with some rows of microtrichia on both dorsal and ventral surfaces ( Fig. 132); tergum IX with one pair of CPS, B1 setae much shorter than B2 setae, small tubercle present on posterior margin instead of SB1 setae ( Fig. 133); sterna II or III to VIII with discal setae as in female. Hypomere not dilated at apex ( Fig. 133).

Specimens examined. India: Holotype (female) and 2 paratypes males of Physothrips setiventris [Ringtong, Darjeeling Dist. , tea bush, 14­vi­1916, E. A. Andrews] ( NHM). 1 female, Assam, Darjeeling, tea shoots, 691–6 CIE A. 324 ( NHM).

Comments. The holotype and two paratypes studied by present authors are labeled as “co­type” and are “type” in original description, but according to the review of Bagnall’s collection ( Mound, 1968), it is the holotype. This species has been considered a pest of tea in India ( Bagnall, 1918).