Acallurothrips, Bagnall, 1921

Mound, Laurence A. & Tree, Desley J., 2021, Tubuliferous Thysanoptera inAustralia with an enlarged tenth abdominal segment (Phlaeothripidae, Idolothripinae), including six new species, Zootaxa 4951 (1), pp. 167-181 : 170

Key to Acallurothrips species from Australia

1. Females with tergite IX setae SB2 minute, smaller than SB1 ( Fig. 11b ); antennal segment IV with ventral pair of sense cones strongly curved ( Fig. 25 )............................................................................... 2

-. Females with tergite IX setae SB2 larger than setae SB1( Fig. 11a ); antennal segment IV with ventral pair of sense cones straight ( Fig. 23 )............................................................................................ 3

2. Tube 1.3 to 1.5 times as long as maximum width, margins convex ( Fig. 4 )................................ erubi sp.n.

-. Tube 1.7 as long as maximum width, margins weakly curved ( Fig. 2 )....................................... nogutii

3. Female with tergite IX setae SB2 slender, more than 0.5 as long as S1 and S2; tube sharply constricted to anal ring ( Fig. 3 )............................................................................................ yagara sp.n.

-. Female with tergite IX setae SB2 short and stout; tube gradually tapering to anal ring ( Fig. 1 )............. darumbali sp.n.

Figures

FIGURES 1‒13. Abdominal segment X variation in shape. Acallurothrips species 1‒4: (1) darumbali sp.n; (2) nogutti; (3) yagara sp.n; (4) erubi sp.n. Neosmerithothrips species 5‒6: (5) barrowi sp.n; (6) turrbali sp.n. (7) Ozothrips meanjini sp.n. Pygothrips species 8‒10: (8) vicinus paratype; (9) rugicauda male; (10) rugicauda female. (11 a, b) Acallurothrips tergites VIII‒X to show setae SB1 and SB2 (from Okajima 1993). (12) Pygothrips rugicauda holotype tergite X dorsal and lateral views (from Hood 1915). (13) Pygothrips pygus tergites IX‒X (from Mound 1974a).

FIGURES 23‒33. Species of Acallurothrips. Neosmerinthothrips, Ozothrips and Pygothrips. Antennae 23‒30: (23) A. darumbali sp.n. (24) A. nogutti. (25) A. erubi sp.n. (26) A. yagara sp.n. (27) N. barrowi sp.n. (28) N. turrbali sp.n. (29) O. meanjini sp.n. (30) P. pygus. Mouth cone & mesopresternum 31-33: (31) A. yagara sp.n. (32) A. nogutti. (33) O. meanjini sp.n.