Apelaunothrips bogor, Mound, Laurence A., 2013

Mound, Laurence A., 2013, Species diversity in the Palaeotropical leaf-litter genus Apelaunothrips (Thysanoptera, Phlaeothripinae), Zootaxa 3741 (1), pp. 181-193 : 187-189

Apelaunothrips bogor sp.n.

( Figs 2 , 10, 11, 14 , 16 )

Female macroptera. Body largely brownish yellow with red internal pigment; head with lateral margins darker, mesonotum brown, tergite II brown laterally, tube brown; abdominal segments brownish yellow; femora all brown, tibiae yellow washed with brown; fore wing shaded distal to sub-basal setae, but pale medially then with dark line medially on distal third; antennal segments I–II dark brown and darker than head, III mainly yellow, IV–VI brown with base yellow, VII–VIII brown; major setae weakly shaded.

Head about 1.2 times as long as wide, cheeks with prominent pair of setae on basal third ( Fig. 2 ); vertex with no sculpture medially, weak lines of sculpture present on about lateral fifths of head; stylets retracted anterior to postocular setae, close together medially on posterior third of head; postocellar setae about as long as an ocellus; postocular setae long and capitate. Antennal sensoria long, 3 on III, 4 on IV, the ventral sensorium on III strongly curved; VIII constricted to basal neck ( Fig. 16 ).

Pronotum with almost no sculpture, chaetotaxy typical of genus. Mesonotum with lateral setae small; metanotum reticulate, median setae pointed. Prosternal ferna large, anterior margin with three small setae; mesopraesternum complete. Fore wing with 7–8 duplicated cilia; sub-basal setae all capitate.

Pelta almost hat-shaped with lateral wings ( Fig. 10 ), median area reticulate, with paired campaniform sensilla; wing retaining setae on tergites II–III usually with apices uncinate ( Fig. 11 ); tergite IX setae apices blunt but not expanded, shorter than tube, intermediate setal pair long.

Measurements (holotype female in microns). Body length 2450. Head, length 270; width 210; postocular setae 65. Pronotum, length 150; width 275; major setae—am 30, aa 50, ml 40, epim 80, pa 70. Mesonotum lateral seta 25. Fore wing, length 1000; sub-basal setae 50, 50, 75. Tergite IX, setae S1 110; iS 75; S2 100; S3 125. Tube length 160. Antennal segments III–VIII length, 85, 90, 95, 75, 60, 45.

Male macroptera. Dimorphic, small males very similar to female but paler and more slender; large males with fore femora enlarged and bearing a prominent irregular tubercle on inner margin near base ( Fig. 14 ); fore tarsus with no tooth in small males, with large tooth in large males; pronotum of large males with anterolateral angles thickened and prominent; tergite IX setae S2 short and stout, shorter than intermediate setal pair (iS).

Measurements (small and large paratype males in microns). Body length 1750 (2000). Head, length 230 (270); width 170 (180); postocular setae 65 (75). Pronotum, length 110 (160); width 225 (250). Tergite IX setae, S1 100 (110); iS 80 (75); S2 35 (35). Tube length 130 (135).

Specimens studied. Holotype female, Indonesia, Java, Bogor Botanic Gardens, from large dead leaves on tree, 26.x.1973 (LAM 1177), in The Natural History Museum, London.

Paratypes: 22 females, 15 small males, 7 large males, all from same site as holotype.

Comments. The variation indicated above in the males is strictly dimorphic—there are no intermediates between the large and small males. In structure, this species is similar to gombak described below, but that has the head uniformly brown. The head colour of bogor , with darker cheeks and paler vertex, is similar to that described for tricolor, but that species has a strongly reticulate vertex. Two species from the Philippines, limbatus and spinalis, are similar to bogor , but have sculpture occupying the lateral thirds of the head, and antennal segment VIII weakly constricted at base. The fore femur of the male of spinalis has a similarly shaped basal tubercle to that of large males of bogor ( Fig. 14 ). Also similar, is longidens from Guangdong, China, but that was described as having the body more extensively yellow.

Figures

FIGURES 1 – 4. Apelaunothrips species, head & pronotum. (1) aokii; (2) bogor sp. n.; (3) consimilis; (4) gombak sp. n.

FIGURES 9 – 15. Apelaunothrips species. (9) aokii pelta & tergites II – III; (10) bogor sp. n. metanotum & pelta; (11) bogor sp. n. tergites II – III; (12) gombak sp. n. pelta & tergite II: (13) zonatus metanotum & pelta; (14) bogor sp. n. male head & fore legs; (15) zonatus male fore leg.

FIGURES 16 – 22. Apelaunothrips species, antennae. (16) bogor sp. n.; (17) consimilis; (18) desleyae sp. n.; (19) flavicornis; (20) gombak sp. n.; (21) madrasensis; (22) medioflavus.