Karnyothrips pellucidus (Ananthakrishnan), 2025

Karnyothrips pellucidus (Ananthakrishnan) comb. n.

(Figs 158–163)

Xylaplothrips pellucidus Ananthakrishnan, 1968: 133 View in CoL .

Apterygothrips pellucidus (Ananthakrishnan) View in CoL ; Pitkin, 1976: 241.

This species was originally described under the genus Xylaplothrips View in CoL from Madras, India, based on 28 female and 18 male apterae collected on the leaves of Sorghum View in CoL , and subsequently transferred by Pitkin (1976) to Apterygothrips View in CoL . The type specimens have not been available in this study, but one female identified by Ananthakrishnan as this species was examined. Pitkin probably transferred the species to Apterygothrips View in CoL on the basis that it does not have wings, but since he stated 'all apparently apterous', he does not seem to have been convinced that this species is wingless. It is uncertain if the specimen listed below is an aptera or microptera because it is unmacerated and some structures are invisible, but our observations suggest that it is a microptera with very small wings. Moreover, Pitkin described antennal segment IV as having three sense cones, whereas only two major sense cones can be seen on segment IV of the listed specimen. Most structures of this species are indistinguishable from the genus Karnyothrips View in CoL , but the largely yellowish body is peculiar within the genus.

Diagnosis. Yellow species (Fig. 158): body largely yellow, but mesonotum and anterior portion of abdominal segment II very weakly tinged with brown; antennal segments I–IV yellow, V pale brown at apical half, yellowish at basal half, segments VI–VIII Antennal segment VIII conical (Fig. 162), not constricted basally; segments III and IV with one (0+1) and two (1+1) or three (1+2) sense cones respectively. Maxillary stylets narrower than one-fifth of head width apart (Fig. 159). Notopleural sutures complete. Tergite IX S1 setae expanded, shorter than tube, S2 setae pointed, longer than tube. Tube (Fig. 160) about 0.5 times as long as head, or a little longer; terminal setae about 1.6 times as long as tube.

Specimen-examined. India, 1 female (?apt.) Madras , on grass, 2.ii.1966, T. N. Ananthakrishnan .