Bactrothrips furvescrus Dang & Qiao

Okajima, Shûji & Masumoto, Masami, 2025, Two idolothripine genera, Bactrothrips and Megalothrips (Thysanoptera, Phlaeothripidae), from Asia between India and Taiwan, with descriptions of two new species, Zootaxa 5696 (4), pp. 491-516 : 497

Bactrothrips furvescrus Dang & Qiao

Bactrothrips furvescrus Dang & Qiao, 2012: 54 .

This species was described from Zhejiang, East China, based on eight females and four males. Unfortunately, the specimens of this species have not been available for this study, and the definition of it is uncertain. According to the original description, it is somewhat similar to B. carbonarius from Japan, but the male tubercles on tergite VI are bicolored, largely yellow with basal 1/5 dark brown, instead of entirely brown. Also, the male tergite VII has a pair of lateral small tubercles, while carbonarius does not have tubercles even in large individuals. It is also somewhat similar to B. luteus from India, Nepal and Thailand in having bicolored abdominal tubercles. Moreover, the lateral setae on the tube are shorter in male than in female (see Figs 23, 24 , 29 & 30 in Dang & Qiao 2012), and these conditions are also found in luteus . However, the habitat ranges of furvescrus and luteus are quite separate. The structure of female Bournier’s Apparatus and male subgenital plate of this species are not known. Moreover, the prothoracic notopleural sutures of this species are described as complete, though most congeners have incomplete ones. The four species known from Australia, B. aliceae , B. houstoni , B. nativus and B. purplexus , have complete or nearly complete notopleural sutures, but they are not closely related to this species.

Figures

FIGURES 13–26. Bactrothrips honoris. Head 13–16: (13) female from Taiwan; (14) male from Taiwan; (15) female from Java; (16) male from Java. Antennal segments III–VIII, female 17–21: (17) Taiwan; (18) Java; (19) Peninsular Malaysia; (20) Mindanao Is., the Philippines; (21) S. Sulawesi. Pelta 22–25: (22) female from Taiwan; (23) female from Java; (24) male from Java; (25) male from Peninsular Malaysia. (26) Abdominal tubercle, male from Java.

FIGURES 27–43. Bactrothrips honoris. Hind tibia, female 27–33: (27–29) Taiwan; (30) Java; (31) Peninsular Malaysia; (32) Mindanao Is., the Philippines; (33) S. Sulawesi. Mid tibia, female 34–38: (34) Taiwan; (35) Java; (36) Peninsular Malaysia; (37) Mindanao Is., the Philippines; (38) S. Sulawesi. (39) Abdominal segments VI and VII, female (arrows indicate ‘faded windows’), female from Java. Male subgenital plate 40–41: (40) Taiwan; (41) Java. Female Bournier’s Apparatus 42–43: (42) Java; (43) Peninsular Malaysia.