Phasmothrips 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 : 64

Phasmothrips Priesner

( Fig. 129 )

Phasmothrips Priesner, 1933b: 82 . Type species: Phasmothrips asperatus Priesner , by monotypy.

Based on a single species, that is known only from the original series of both sexes, taken from a leaf gall on Sloanea in Java, this genus is considered to be a member of the Liothrips -lineage. However, it is remarkable for the numerous short-stout setae on the pronotum ( Fig. 129 ) and fore femora, as well as on the head. In the absence of long pronotal setae it is unlike any species of Liothrips or related genera.

Diagnosis: Head longer than wide, cheeks with about 8 pairs of short, stout setae ( Fig. 129 ); head dorsally with one pair of small tubercles on posterior quarter; eyes without enlarged ommatidia, postocular setae small, not reaching posterior margins of eyes; maxillary stylets one-third of head width apart, retracted into basal third of head; antennae 8-segmented, III with 1 sensorium, IV with 3; pronotum well-developed and rounded, only epimeral setae well-developed, other major setae small, about 8 pairs of stout spur-like setae on anterior angles, notopleural sutures complete; basantra absent; mesopresternum reduced medially; sternopleural sutures absent; fore tarsal tooth present in both sexes; fore wings parallel-sided, with about 90 duplicated cilia; pelta rounded triangular; tergites II–VII with 2 pairs of wing-retaining setae; lateral abdominal setae very long, tergite IX setae slightly longer than tube; tube with straight sides, slightly shorter than head; male sternite VIII with an entire pore plate.

Figures

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