Bactrothrips Karny

Dang, Li-Hong & Qiao, Ge-Xia, 2013, Review of the spore-feeding Idolothripinae from China (Thysanoptera, Phlaeothripidae), ZooKeys 345, pp. 1-28 : 8

Bactrothrips Karny

Remarks.

Currently there are 53 species listed in this genus, of which seven have been recorded from China: Bactrothrips brevitubus , Bactrothrips elongatus , Bactrothrips flectoventris , Bactrothrips furvescrus , Bactrothrips honoris , Bactrothrips pictipes and Bactrothrips quadrituberculatus . Dang and Qiao (2012a) provided an identification key to these seven species, based on morphological and DNA barcoding data. The genus Bactrothrips is closely related to Megathrips , and differs from Megalothrips in usually having shorter maxillary stylets.

Diagnosis.

Head much longer than width across eyes, usually prolonged in front of eyes; eyes usually equally developed ventrally and dorsally, sometimes obviously prolonged on ventral surface ( Bactrothrips flectoventris ); dorsum of head usually with 4 pairs of well-developed setae; stylets short and far apart, or long and close together; antennae 8-segmented, segment III with 2 sensoria, IV with 4; pronotum usually with 5 pairs of well-developed major setae, sometimes epimeral accessory setae also well-developed, notopleural sutures incomplete or complete; basantra present; mesopraesternum boat-shaped; metathoracic sternopleural sutures absent; wings usually fully developed with numerous duplicated cilia, sometimes apterous; fore tarsal tooth absent in both sexes; pelta broad, with two lobes; abdominal tergites II–VII each with 2 pairs of sigmoid wing-retaining setae; tergites V–VIII of male with or without lateral tubercles; tube surface with numerous fine setae; anal setae much shorter than tube.