Karnyothrips apoensis Okajima & Masumoto, 2025, sp. n.
Creators: name: Okajima, Shûji
name: Masumoto, Masami
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Thysanoptera
Phlaeothripidae
Karnyothrips
Karnyothrips apoensis

description: Karnyothrips apoensis sp. n.
(Figs 13, 56–61)
Female (macroptera). Distended body length: 1.8–2.2mm. Brown species (Fig. 13). All femora brown with apices yellowish; all tibiae and tarsi yellow. Antennal segments I and VI – VIII brown, almost concolorous with head or a little paler, segment VI often with base yellowish; segment II brown, yellowish externally, segments III and IV yellow, segment V yellowish brown, with base yellow. Wings and major body setae pale. Head about 1.5 times as long as wide (Fig. 56), 1.52 times in holotype, widest across cheeks at the level of postocular setae, dorsal surface almost smooth, but with weak transverse striae at middle between postocular setae. Cheeks rounded, weakly serrate. Postocular setae shorter than eyes, expanded at apex, 122µm apart from each other, 15–17µm apart from eyes in holotype. Eyes about one-third as long as head, 0.31–0.32 times in holotype. Ocelli relatively small; posterior pair 34µm apart from each other in holotype. Antennae about 1.6 times as long as head, 1.58 times in holotype; segment VIII relatively slender (Fig. 60), very weakly constricted basally, narrowly fused to segment VII, 0.65 times as long as VII; segments III and IV subequal in length (Fig. 61), longer than segment VII, each with two sense cones, (1+1) and (1+1 +1) respectively. Maxillary stylets reaching postocular setae, about one-fourth of head width or a little wider, 30µm apart from each other in holotype; maxillary bridge weak. Pronotum 0.73 times as long as head, 1.17 times as wide as long in holotype, almost smooth; four pairs of prominent setae expanded; aa and ml subequal in length, shorter than pa, epim the longest. Notopleural sutures complete. Prospinasternum moderately large, longer than wide, narrowly fan-shaped, 25µm wide; mesopresternum reduced, divided or very narrowly boat-shaped; basantra a little wider than long (Fig. 58). Metanotum weakly sculptured medially with polygonal reticulation; median pair of setae weak, short and acute, less than 20µm in length, 44µm apart from each other, 50–52µm apart from anterior margin. Fore wing with 4–5 duplicated cilia; three sub-basal setae expanded. Pelta trapezoid (Fig. 59), sculptured weakly, 1.21 times as wide as long. Tergite IX S1 and S2 setae pointed, much longer than tube, S2 longer than S1. Tube 0.47 times as long as head, 1.84 times as long as wide. Terminal setae about 1.8 times as long as tube.
Measurements (holotype female in µm). Body length 2120 (distended). Head length 225, from anterior margin of eyes 205, width across eyes 140, maximum width across cheeks 148; eyes length 71–72, width 38–40; diameter of posterior ocelli 11–13; postocular setae about 40. Antenna total length 355, segments III–VIII length (width) as follows: 52 (28), 52 (28), 47 (25), 42 (22), 46 (20), 30 (13). Pronotum length 164, width 192. Setae on prothorax: aa about 30, ml?30, pa 35–37, epim 50–53. Fore wing length 740. Sub-basal wing setae: S1 31 –33, S2 28 –30, S3 30 –40. Pelta length 80, width 97. Tergite IX setae: S1 142–144, S2 150–160. Tube length 105, maximum width 57; terminal setae 190.
Male (macroptera). Distended body length: 1.4-1.7mm. Very similar in color and structure to macropterous female. Head 1.45–1.60 times as long as wide (Fig. 57); postocular setae much shorter than eyes; maxillary stylets rather wider apart, 0.30–0.35 times as wide as head. Tergite IX S1 setae 1.18–1.28 times as long as tube.
Measurements (paratype male in µm). Body length 1520 (distended). Head length 191, from anterior margin of eyes 173, width across eyes 122, maximum width across cheeks 123; eyes length 63–65, width 35; diameter of posterior ocelli 8–12; postocular setae 30–35. Antenna total length 300, segments III–VIII length as follows: 45, 44, 39, 33, 38, 28. Pronotum length 120, width 158. Setae on prothorax: aa 20–25, ml 20–25, pa about 30, epim 33–35. Fore wing length 580. Sub-basal wing setae: S1 25, S2 25 –26, S3 28 –30. Pelta length 57, width 71. Tergite IX setae: S1 105, S2 35 –37. Tube length 88, maximum width 48; terminal setae 176.
Type material. Holotype: macropterous female, the Philippines, Mindanao, Mt.Apo, Agko, alt. about 1300m, on half dead grass, 1.viii.1979, SO. Paratypes: the Philippines, Mindanao, 9 females (mac.) and 5 males (mac.), collected together with holotype; same locality as holotype, 3 females (mac.), on dead branches, 1 male (mac.), on dead leaves, 30.vii.1979, 2 females (mac.) and 2 males (mac.), on dead fern, 30.vii.1979, 2 females (mac.) and 2 males (mac.), on half dead grass, 31.vii.1979, 1 female (mac.), on bush with bamboo, 31.vii.1979, 1 female (mac.), on dead leaves, 31.vii.1979, 12 females (mac.) and 4 males (mac.), on half dead grass, 1.viii.1979, 7 females (mac.) and 2 males (mac.), on dead leaves, 2.viii.1979, 2 females (mac.) and 5 males (mac.), on dead leaves, 3.viii.1979, SO; North Cotabato, Ilomavis, 1 female (mac.), on dead leaves, 26.vii.1979, 1 female, on dead fern, 26.vii.1979, 3 females (mac.), on dead fern, 27.vii.1979, 2 males (mac.), on grass, 27.vii.1979, 1 male (mac.), on dead leaves, 29.vii.1979, SO.
Comments. This species is described based on a good number of macropterous females and males taken from dead plants in Mindanao, the Philippines. It may be closely related to K. brevipilosus sp. n. from Vietnam described below, despite they are quite distinctive in body color. These two share several important character states as: head with weak transverse striae or warts at middle between postocular setae; antennal segment VIII relatively slender, 0.65–0.68 times as long as segment VII, narrowly fused to VII (Fig. 60); antennal segments III and IV each with two sense cones; tergite IX S1 setae sharply pointed, longer than tube.
description: Published as part of Okajima, Shûji & Masumoto, Masami, 2025, Review of the genus Karnyothrips (Thysanoptera, Phlaeothripidae) from Asia between India and Japan, pp. 1-82 in Zootaxa 5578 (1) on page 23, DOI: 10.11646/zootaxa.5578.1.1, http://zenodo.org/record/14763175