Isotrichothrips Priesner

Dang, Li-Hong, Mound, Laurence A. & Qiao, Ge-Xia, 2014, Conspectus of the Phlaeothripinae genera from China and Southeast Asia (Thysanoptera, Phlaeothripidae), Zootaxa 3807 (1), pp. 1-82 : 43

Isotrichothrips Priesner

( Figs 16 , 76 )

Isotrichothrips Priesner, 1968: 282 . Type species: Liothrips longirostris Karny , by original designation.

The two species included in this genus are from Java, Indonesia, and type specimens of longirostris have been examined. The genus belongs to the Liothrips -lineage, but is distinguished from the worldwide Liothrips because in males setae S1 and S2 on tergite IX are equally long. This condition also occurs in the New World genus Pseudophilothrips ( Mound et al. 2010) , from which Isotrichothrips is distinguished by the much shorter antennae ( Fig. 16 ).

Diagnosis: Head longer than wide ( Fig. 76 ); postocular setae well-developed; stylets retracted into head; antennae 8-segmented ( Fig. 16 ), segment VIII shorter than VII, III with 1 sensorium, IV with 3; pronotum with 5 pairs of well-developed setae, notopleural sutures incomplete; basantra absent; mesopresternum transverse?; sternopleural sutures?; fore tarsal tooth absent in both sexes; fore wings parallel-sided, with duplicated cilia; pelta triangular; tergites II–VII with 2 pairs of wing-retaining setae; tube with straight sides; male tergite IX with setae S2 as long as S1.

Figures

FIGURES 11–20. Phlaeothripinae genera. Antennae 11–18: (11) Akarethrips iotus; (12) Ecacanthothrips tibialis; (13) Eurhynchothrips messuicola; (14) Eugynothrips sumatranus; (15) Heliothripoides boltoni; (16) Isotrichothrips longirostris; (17) Litotetothrips sp.; (18) Phenicothrips daetymon. Head & pronotum 19–20: (19) Asianthrips orientalis; (20) Apelaunothrips aokii.

FIGURES 76–79. Phlaeothripinae genera. Head & pronotum 76–79: (76) Isotrichothrips longirostris; (77) Murphythrips legalis; (78) Mystrothrips dammermani; (79) Strepterothrips uenoi.