Rohrthrips jiewenae Ulitzka 2019, sp. n.
Creators: name: Ulitzka, Manfred R.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Thysanoptera
Phlaeothripidae
Rohrthrips
Rohrthrips jiewenae

description: Rohrthrips jiewenae sp. n.
(Fig. 3)
Female. Body slightly contracted; legs extended; right wings and left hind wing overlapping body, right fore wing spread to the side.
Colour (Fig. 3) dark brown including antennae and legs; all major setae and wing fringes dark; wing veins light brown but much darker at base; wing membrane shaded brownish.
Head mainly smooth, about as long as wide; slightly produced in front of anterior margin of eyes, with cheeks rounded behind eyes; cheeks lacking setae; one pair of long and strong ocellar setae close to base of antennae. Eyes not prolonged ventrally. Ocelli large; hind ocelli very close to compound eyes; far apart from each other. Vertex with two postocular setae far behind eyes. Antennae 9-segmented; segment I barrel-shaped; segment II basally bended outwards with a very short pedicle, then similar to III–VII asymmetrical inverse cone-shaped, distal margin inclined to the exterior side; VIII spindle-shaped; IX style-shaped. Segment II with a small distal sensorium; number of sense cones of the following segments difficult to assess (distorted) but at least one inner and one outer on III–V. Mouth cone short and rounded. Maxillary palps clearly 3-segmented. Pronotum about as long as wide, trapezoidal; mediolateral and posteroangular setae long and pointed, anteroangular setae as well as anteromarginal and posteromarginal setae minute. Anterior half of mesonotum sculptured coarsely reticulate; mesonotal setae not visible. Prosternal plates not assessable; mesosternellum and metasternum fused; sternacosta meeting each of the mesothoracic coxae with a conspicuous process. Fore wings (Fig. 3) becoming progressively larger in distal half; anterior vein complete, reaching costa near apex, bearing one median and two distal setae as well as one short basal seta located anteriorly to the vein; second vein not developed; membrane without microtrichia. Fringe cilia straight; arising from sockets; duplicated cilia present around apical margin of wing; clavus not clearly visible. Hind wings without microtrichia; without any veins; sockets of wing fringes smaller than on fore wing. Fore legs with femora stout; fore tarsi with a strong tooth and a very strong hamus. Mid and hind legs slender. All femora with one long ventral and all tibiae with one long dorsal seta; mid and hind tibiae terminally each with three spines; mid and hind tarsi two-segmented, with hamus. Abdominal tergites smooth, without wing-retaining setae; lateral setae long but delicate, pointed; setae s3 on V–VII longer than other lateral setae, not conspicuously bent inwards as in other species. Abdominal segment I (pelta) not assessable; IX conical, with setae s3 very long, reaching tip of tube. Sternite IX with structures interpretable as gynosternal plates and fustis (cf. Bhatti 1998b). Abdominal segment X (tube) long and slightly extended at base; its sculpture not assessable; apparently without campaniform sensilla; with terminal crown of long anal setae.
Measurements. Female (in microns): Body, length 1548. Head, length 166; width 176. Eyes, length 63; width 38. Ocelli, diameter 19; distance between the hind ocelli 47. Ocellar setae 37. Prothorax, length 239; width 365; posteroangular setae 76; mediolateral setae about 65 (not clearly visible); epimeral setae 120. Mesonotum, length 120; width not measurable. Pterothorax, largest width 347. Abdomen, length 911; largest width 490 (segment IV); segment X (tube), length 176; basal width 50. Setae s3 on tergite IX about 255. Antennae, length 334 (segments partially retracted); length (largest width) of segment I 50 (31), II 43 (31), III 50 (34), IV 40 (36), V 37 (28), VI 43 (19), VII 31 (16), VIII 31 (12), IX 9 (3). Sense cones, length of inner (outer) on segment III 6 (6), IV 9 (6), V 10 (–); basal width about 3–4. Fore wings, length 1196; largest width 225.
Material studied. Holotype female MU-Fos-89/1. Inclusion in Burmese amber, donated to the author by Yanzhen Zhao.
Syninclusions. Two midges and parts of a fly, one unknown insect larva and some fungal spores close to the thrips (Fig. 3).
Etymology. The species R. jiewenae is dedicated to Jiewen Zhao, granddaughter of Yanzhen Zhao who found the holotype female in a mine of the Hukawng Valley, Kachin State, Myanmar and donated it to the author.
description: Published as part of Ulitzka, Manfred R., 2019, Five new species of Rohrthrips (Thysanoptera: Rohrthripidae) from Burmese amber, and the evolution of Tubulifera wings, pp. 27-40 in Zootaxa 4585 (1) on page 30, DOI: 10.11646/zootaxa.4585.1.2, http://zenodo.org/record/2636187