Neandrothrips dentipes, Okajima & Masumoto, 2025

Neandrothrips dentipes sp. nov.

( Figs 108 View FIGURES 102–111 , 152–158 View FIGURES 152–158 )

Female (macroptera). Distended body length: 1.5–1.7mm. Body brown ( Fig. 108 View FIGURES 102–111 ). All femora brown, fore femora with apices paler; fore tibiae yellowish brown, mid and hind tibiae pale brown, with bases paler; tarsi yellow. Antenna brown, segment III with basal one-third paler, segment IV with extreme base scarcely paler. Fore wing very weakly shaded with pale brown, but basal one-third pale. Major body setae pale. Head ( Fig. 152 View FIGURES 152–158 ) a little longer than wide, about 1.1 times as long as wide; dorsal surface weakly sculptured with transverse reticles or striae. Cheeks weakly rounded, weakly serrated. Eyes well developed, a little longer than 1/3 of head length, 0.38 times as long as head in holotype. Ocelli well developed; posterior pair 25µm apart from each other in holotype. Postocular setae shorter than eyes, expanded; 105µm apart from each other, 7–8µm apart from eyes in holotype. Antennae ( Fig. 158 View FIGURES 152–158 ) about 1.9 times as long as head, 1.89 times in holotype; segment VIII relatively slender, weakly constricted at base, narrowly joined to segment VII, longer than 0.7 times as long as VII; segment III a little shorter than IV, longer than VII; segment IV the largest; segments III and IV with three (1+2) and four (2+2 +1) sense cones respectively. Maxillary stylets not reaching postocular setae, wider apart, almost V-shaped; maxillary bridge wide, wider than 1/3 of head width. Pronotum ( Fig. 152 View FIGURES 152–158 ) about 0.7 times as long as head, 0.68 times in holotype, about 1.7 times as wide as long, 1.69 times in holotype; almost smooth; five pairs of prothoracic setae well developed, expanded; am and aa subequal in length, ml and pa elongate, almost as long as postocular setae, epim a little longer than pa. Prospinasternum ( Fig. 153 View FIGURES 152–158 ) variable in shape, 20–30µm wide; mesopresternum complete, boat-shaped. Mesonotal lateral setae developed, expanded. Metanotum ( Fig. 154 View FIGURES 152–158 ) distinctly sculptured with reticulation; median pair of setae pointed, about 20µm, wider apart from each other and closer from anterior margin of metanotum, 46µm apart from each other, 32–36µm apart from anterior margin in holotype. Fore femur ( Figs 156 & 157 View FIGURES 152–158 ) with two dentate inner tubercles, posterior one larger and situated at middle; fore tibia with a seta bearing small inner tubercle at anterior one-third; fore tarsus with a well-developed tooth. Fore wing with 6–7 duplicated cilia, 6 in holotype; three sub-basal setae expanded, S3 the longest. Pelta ( Fig. 155 View FIGURES 152–158 ) trapezoid, with distinctly reticulate, about 1.6 times as wide as long in holotype. Tergites III – VIII S2 setae: III – VI expanded, but those on tergite V and VI often blunt or very weakly expanded, VII finely pointed, VIII blunt. Tergite IX S1 setae blunt, much shorter than tube, 0.65 times as long as tube in paratype (these setae are missing in holotype), S2 sharply pointed, a little longer than tube; intermediate setae long, longer than two-thirds of Sl. Tube about 0.6 times as long as head, about 2.1 times as long as wide; terminal setae 1.6–1.7 times as long as tube .

Measurements (holotype female in µm). Body length 1560 (distended). Head length 159, from anterior margin of eyes 149, width across eyes 140, maximum width across cheeks 144, minimum width across base 121; eyes length 60; diameter of posterior ocelli 12–15; postocular setae 40–43. Maxillary bridge width 60. Antenna total length about 300, segments III–VIII length (width) as follows: 42 (27), 45 (27), 39 (23), 38 (20), 37 (18), 27 (9). Pronotum length 108, width 182. Setae on prothorax: am 27–29, aa 26–28, ml 35–37, pa 41–42, epim 46–48. Fore wing length 630. Sub-basal wing setae: S1 35 –37, S2 40 –43, S3 45 –48. Pelta length 55, width 88. Tergite IX setae: S1?, S2 about 100. Tube length 95, maximum width 46; terminal setae 150–160.

Male (macroptera). Distended body length: 1.3–1.4mm. Very similar to macropterous female in color and structure. Fore wing with 4–5 duplicated cilia.

Measurements (paratype male in µm). Body length 1270 (distended). Head length 149, from anterior margin of eyes 138, width across eyes 126, maximum width across cheeks 127, minimum width across base 100; eyes length 57; diameter of posterior ocelli 10–14; postocular setae 40. Maxillary bridge width 63. Antenna total length 286, segments III–VIII length as follows: 38, 41, 37, 34, 35, 26. Pronotum length 90, width 148. Setae on prothorax: am 26–27, aa?25, ml 33–34, pa 40, epim?40. Fore wing length 540. Sub-basal wing setae: S1 31 –32, S2 38 –39, S3 40 –42. Pelta length 45, width 73. Tergite IX setae: S1 62–63, S2 25 –27. Tube length 90, maximum width 38; terminal setae 155–156.

Type material. Holotype: macropterous female, Indonesia, Bali, Kuta (sea level), on dead leaves and branches, 23.vii.1984, SO . Paratypes: Indonesia, Bali, 2 female and 3 male, collected together with holotype ; 5 females and 1 male, data very similar to holotype, but 30.viii.1984; 1 male, Buleleng, Pura Belatung , 100m alt., 30.viii.2005 , SO; Buleleng, Desa Melanting , 135m alt ., 1 male, 30.viii.2005, 1 female, 31.viii.2005, SO. Singapore, 1 female, Macritchie Park (=Macritchie Reseervoir), on dead leaves, 22.vii. 1976 , SO.

Non-paratypic specimens. Indonesia, Flores, 2 males, Ende , Wolosoko, 655m alt., habitat uncertain, 22.viii.2006 , 1 male, Ngada , Aimere, 200m alt., on dead branches, 27.viii.2006 , SO.

Comments. This species may be included in the pictipes -group, and is peculiar in having fore femoral inner dentate tubercles. A small number of specimens were taken from dead leafy branches in lowlands of tropical Southeast Asia, but the feeding-habit is uncertain. Three males from Flores listed under the non-paratypic specimens are indistinguishable from the type series .