Aeolothrips euphorbiae, Mirab-balou, 2019

Mirab-balou, M., 2019, A key to species of the genus Aeolothrips Haliday (Thysanoptera: Aeolothripidae) from Iran with description of new species, Far Eastern Entomologist 380, pp. 1-7 : 5-7

Aeolothrips euphorbiae Mirab-balou, sp. n.

http://zoobank.org/NomenclaturalActs/ 639F759D-B157-429A-A432-DE8B45C0CA90

Figs 2–9

MATERIAL EXAMINED. Holotype: ♀, Iran: Ilam Province: Ilam University ,

Ilam, on Euphorbia cheiradenia Boiss. & Hohen. (Euphorbiaceae) , 10. V 2013, M.

Mirab-balou ( ILAMU). Paratypes: 3 ♀ collected with holotype , with same data ;

Ilam Province: 11 ♀, 3 ♂ , Ilam, on E. cheiradenia , 24.VI 2015, leg. M. Mirabbalou; 3 ♀ , Eyvan , on Euphorbia spp. , 22.V 2014, leg. Behzad Miri; 4 ♀, 6 ♂ ,

Malekshahi, on Euphorbia spp. , 31. V 2014, leg. Rahim Allahyar; Kermanshah

Province: 4 ♀, Eslamabad, on Euphorbia spp. , 8.vi.2015, leg. M. Mirab-balou;

Lorestan Province: 2 ♀, 1 ♂, Khorramabad, Alashtar, on Euphorbia spp. , 22. IV

2014, leg. Maryam Nour-Mohammadi.

DESCRIPTION. Female macroptera. Body color pale yellow with more or less grayish spots on the mesothorax; abdominal segments IX–X and sometimes VIII shaded, X darker at apex; antennal segment III & IV with mostly yellow except brown at apex, segment V brown at half apex, segments VI–IX entirely brown ( Fig. 3 );

middle and hind tibiae and tarsi light brown ( Fig. 7 ). Fore wings pale with two brown transverse bands which are not connected ( Fig. 9 ). Abdominal sternites II–VII with dark brown antecostal ridge; major setae on abdominal segments IX–X dark brown

( Fig. 6 ).

Head and pronotum without long setae. Head wider than long, not produced in front of eyes, with weak transverse lines of sculpture, 2 pairs of setae within ocellar triangle arising between posterior ocelli, postocular area with 10–12 pairs of setae in 2

irregular transverse rows ( Fig. 1 ). Antennae 9-segmented, segment III with linear sensorium extending to apical third of segment, IV with sensorium somewhat curved distally and broadened at apex, extending from apex to basal half of segment; segment V as long as VI–IX together (slightly longer in some paratypes). Pronotum not sculptured, with 4–6 pairs of posteromarginal setae. Mesonotum with 1 pair of median setae aligned with lateral setae, with rather wide transverse reticulations.

Metanotum with broad reticulation, without internal markings. Abdominal tergite I with 3–4 faint transverse striae anteromedially, with one paired campaniform sensilla posterior to small median setae; tergites II–VIII and X with no transverse striations; IX with numerous faint transverse striations ( Fig. 4 ); tergites II–VII with median setae arising aligned with campaniform sensilla. Abdominal sternites II–VII without transverse striations, sternite II with 3 pairs of submarginal setae, median pair longest; III–VI with 4 pairs of setae, of which 2 median pairs are marginal and

2 lateral pairs situated far from margin; sternites without discal setae; VII with 4 pairs of submarginal setae, S1 as long as S2, with 2 pairs of widely separated accessory

(supernumerary) setae ( Fig. 5 ).

Male macroptera. Similar to female in colour and structure, but all legs as colour as body, clear yellow. Middle coxae with stridulatory structure. Abdominal tergites without dorsal tubercles, tergite IX with bifurcate claspers and sickle-shaped setae laterally, and light brown dorsal plate medially. Semilateral setae slightly shorter than claspers ( Fig. 8 ).

antenna; 4 – female abdominal segments VIII–X; 5 – female abdominal sternite VII; 6 –

female abdominal sternites, showing antecostal ridge; 7 – female legs, showing color of fore,

mid- and hind legs; 8 – male abdominal tergite IX; 9 – female fore wing.

MEASUREMENTS (holotype female). Length (width). Body length 1900. Head

185(220). Pronotum 165(255). Fore wing 850, hind wing 680. Antennal segments

I–IX as follows: 30(40), 60(25), 90(30), 70(25), 65(30), 20(25), 20(18), 12(8), and 8(5).

MEASUREMENTS (paratype male). Body length 1350.

DIAGNOSIS. Female of A. euphorbiae sp. n. is distinguished from A. montivagus by color of antennal segments IV (pale except light brown at apical margin versus is yellow at least in the basal half) and V (brown at half apex versus entirely brown), and color of terminal segments of abdomen (IX–X faintly shaded versus X

distinctly shaded except basal third). Moreover, they are different in color of middle and hind tibiae (light brown versus entirely yellow). Male of the new species is easily distinguished from A. montivagus by presence of clasper on abdominal segment IX,

and absence numerous small setae on abdominal tergites VI–VIII.

DISTRIBUTION. West of Iran (Ilam, Kermanshah and Lorestan Provinces) .

ETHYMOLOGY. This species is named after the genus of plant from which it was collected.

Figures

Figs 2–9. Aeolothrips euphorbiae sp. n. 2 – female head and pronotum; 3 – female

Fig. 1. Euphorbia cheiradenia Boiss. & Hohen. (Euphorbiaceae) – host plant of Aeolo-