Androthrips dambriae, Okajima & Masumoto, 2025

Okajima, Shûji & Masumoto, Masami, 2025, Some Poaceae-inhabiting Phlaeothripinae (Thysanoptera, Phlaeothripidae) in East Asia, with descriptions of six new genera and 18 new species, Zootaxa 5726 (1), pp. 1-68 : 12-13

publication ID	https://doi.org/10.11646/zootaxa.5726.1.1
publication LSID	lsid:zoobank.org:pub:894F9D4B-2A99-4AC1-8C9A-828006840831
DOI	https://doi.org/10.5281/zenodo.17869616
persistent identifier	https://treatment.plazi.org/id/03E28781-242F-5050-64C5-FDADA8BCF837
treatment provided by	Plazi
scientific name	Androthrips dambriae
status	sp. nov.

Treatment

Androthrips dambriae sp. nov.

( Figs 7 View FIGURES 6–19 , 20–27 View FIGURES 20–27 )

Female (macroptera). Distended body length: 1.95–2.20mm. Body brown ( Fig. 7 View FIGURES 6–19 ). Femora brown, extreme apices of fore femora yellow; fore tibiae yellow, mid and hind tibiae brown (cf. Fig. 25 View FIGURES 20–27 ), with extreme bases and apices slightly paler; tarsi yellow. Antennal segments I– II and VII – VIII brown, somewhat paler than thorax, segments III – VI yellow, often segment VI scarcely shaded distally. Fore wings and major body setae pale. Head much longer than wide ( Fig. 20 View FIGURES 20–27 ), 1.43 times as long as wide in holotype; dorsal surface almost smooth, sculptured laterally. Cheeks sub-parallel, very weakly rounded, weakly serrated. Postocular setae shorter than eyes, weakly expanded, 111µm apart from each other, 17µm apart from eyes in holotype. Eyes a little longer than one-third of head length, 0.35 times as long as head in holotype. Ocelli well-developed; posterior pair slightly separated from eyes, 29µm apart from each other in holotype. Antennae ( Fig. 26 View FIGURES 20–27 ) about 1.7 times as long as head; segment VIII rather slender, very weakly constricted at base, a little shorter than 0.8 times as long as segment VII; segments III and IV subequal in length; segments III and IV each with (1+2) and (2+2 +1) sense cones respectively, these sense cones are short and slender, very difficult to observe. Maxillary stylets reaching eyes, rather close together at middle, about one-third of head width apart; maxillary bridge rather weak, situated at 32µm from basal collar of head in holotype. Pronotum ( Fig. 20 View FIGURES 20–27 ) 0.58 times as long as head, 1.74 times as wide as long in holotype, almost smooth; four pairs of major prothoracic setae well-developed, expanded; aa and ml subequal in length; pa almost as long as postocular setae; epim the longest. Prosternal basantra and ferna well-developed ( Fig. 23 View FIGURES 20–27 ). Prospinasternum about 30µm wide in holotype. Mesopresternum narrowly boat-shaped. Mesonotal lateral setae well-developed, weakly expanded, about 30µm long in holotype. Metanotum sculptured with polygonal reticulation, with a pair of small setae before median pair of setae; median pair of setae 28–31µm in length, 53µm apart from each other, about 52–58µm apart from anterior margin of metanotum in holotype. Fore femora ( Fig. 22 View FIGURES 20–27 ) typical of the genus, but not so enlarged, with a few small tubercles at inner margin before sub-basal tubercle; fore tibial inner apical scale slender. Fore wing with 6–7 duplicated cilia, with 6 cilia in holotype; sub-basal setae S1 and S2 expanded, S2 longer than S1, S3 much longer than S2, weakly expanded. Pelta trapezoid ( Fig. 24 View FIGURES 20–27 ), 1.23 times as wide as long in holotype. Tergites I – VIII S1 setae very weakly expanded, but often blunt. Tergites III – VIII S2 setae: III – V short and blunt or very weakly expanded, VI – VIII pointed or nearly pointed. Tergite IX S1 and S2 setae pointed, S1 almost as long as tube, or a little shorter; S2 a little longer than tube; intermediate setae shorter than half of S1. Tube ( Fig. 27 View FIGURES 20–27 ) shorter than 0.6 times as long as head, 0.55 times in holotype, about 1.8 times as long as wide; terminal setae about 1.4 times as long as tube .

Measurements ( holotype female in µm). Body length about 2200 (distended). Head length 223, from anterior margin of eyes 205, width across eyes 154, maximum width across cheeks 156, minimum width across base 133; eyes length 79; diameter of posterior ocelli 17–20; postocular setae 63–64. Maxillary bridge width 53. Antenna total length 385, segments III–VIII length (width) as follows: 54 (31), 58 (32), 51 (26), 46 (22), 42 (20), 32 (12). Pronotum length 130, width 226. Setae on prothorax: aa 46–47, ml about 50, pa 63–64, epim 75. Fore wing length 850. Sub-basal wing setae: S1 45 –46, S2 56 –58, S3 95. Pelta length 91, width 112. Tergite IX setae: S1 119–120, S2 124–137. Tube length 122, maximum width 68; terminal setae 170.

Male (macroptera). Distended body length: about 1.5mm. Very similar to macropterous female in color and structure. Head shorter ( Fig. 21 View FIGURES 20–27 ), shorter than 1.2 times as long as wide; maxillary stylets relatively wider apart, almost V-shaped; maxillary bridge a little narrower than half of head width; fore wing with 5–6 duplicated cilia; tergite IX S2 setae 0.28–0.33 times as long as S1; tube about 0.6 times as long as head.

Measurements ( paratype male in µm). Body length 1540 (distended). Head length 155, from anterior margin of eyes 143, width across eyes 135, maximum width across cheeks 138, minimum width across base 113; eyes length 57; diameter of posterior ocelli 12–14; postocular setae about 40. Maxillary bridge width 63. Antenna total length 310, segments III–VIII length as follows: 44, 43, 40, 37, 33, 30. Pronotum length 101, width 178. Setae on prothorax: aa 30, ml 30, pa 45–48, epim 52–54. Fore wing length 660. Sub-basal wing setae: S1 35, S2 42 –44, S3 66–68. Pelta length 66, width 82. Tergite IX setae: S1 90–93, S2 26 –30. Tube length 95, maximum width 53; terminal setae 143–148.

Type material. Holotype: macropterous female, Vietnam, Lam Dong province, Bao Loc, Dam Bri , on bamboo, 26.xii.2001, SO . Paratypes: Vietnam, 2 females and 2 males, collected together with holotype .

Comments. This species is described from Vietnam based on three females and two males collected from bamboo, and was obtained together with Vietothrips bicolor gen. et sp. nov. described below. It is somewhat similar to A. fuscipes sp. nov. from Sulawesi, Indonesia, in having brownish mid and hind tibiae, but can be distinguished by the following features: ocelli well-developed; maxillary stylets reaching eyes; antennal segment IV with a small outer sense cone in addition to four major sense cones, (2+2 +1); tergite IX S1 and S2 setae shorter. A. crus from Taiwan and A. ramachandrai from somewhat wider range of Asia are also somewhat similar to this species, but have antennal segments IV to VI with apices brownish.