Eugynothrips 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 : 31

Eugynothrips Priesner

( Figs 14 , 126 )

Eugynothrips Priesner, 1926: 157 . Type species: Cryptothrips conocephali Karny , by subsequent designation.

This South East Asian genus is a member of the Liothrips- lineage. It comprises 16 leaf-feeding species, of which four are placed in the subgenus Loepothrips . One species was described from India, but all the others from Indonesia, either Java or Sumatra, with a single species, intorquens (Karny), recorded from southern Japan and Taiwan ( Okajima 2006). One un-named species has been seen from mainland China (NZMC, Beijing). Species in this genus usually have the head relatively short ( Fig. 126 ) and the antennal sensoria unusually long ( Fig. 14 ). However, most of these species were described 100 years ago from poorly mounted specimens, and the group requires extensive study.

Diagnosis: Head a little longer than wide ( Fig. 126 ); eyes normal, without enlarged ommatidia, postocular setae either small or well-developed; stylets retracted to postocular setae, wide apart; antennae 8-segmented, III with 1 sensorium, IV with 3, sensoria long and slender ( Fig. 14 ); pronotum with major setae developed, sometimes am reduced, notopleural sutures usually complete; basantra absent; mesopresternum reduced medially; sternopleural sutures present, but short; fore tarsal tooth absent in female, present in male; fore wings parallelsided, with duplicated cilia; pelta triangular; tergites II–VII with 2 pairs of wing-retaining setae; tube with straight sides, slightly shorter than head; male sternite VIII without pore plate.

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 126–129. Liothrips-lineage. Head & pronotum: (126) Eugynothrips brevisetis; (127) Phenicothrips siamensis; (128) Leeuwenia caelatrix; (129) Phasmothrips asperatus.