Haplothrips aliakbarii, Mirab-Balou & Received & Online & Version, 2018

Mirab-Balou, Majid, Received, Behzad Miri, Online, Published & Version, Final, 2018, Haplothrips aliakbarii sp. nov. (Thysanoptera: Phlaeothripidae): a new thrips on oak trees from Ilam Province (western Iran), Turkish Journal of Zoology 42 (5), pp. 608-613 : 608-612

Haplothrips aliakbarii Mirab-balou and Miri sp. nov. ( Figures 2–4 )

Material examined: Holotype female, IRAN: Ilam Province, Eyvan, Khoran (33°82.49′N, 46°24.71′E), on oak tree ( Quercus brantii ), 20.vii.2017, Leg. B. Miri. Paratypes: 4 females, 1 male, collected with holotype female, with same data . Five females, Ilam Province, Eyvan (33°49.95′N, 46°17.74′E), on oak trees, 11.viii.2017, Leg. B. Miri ; 4 females, Ilam Province, Dalab forests (33°40′20″N, 46°20′56″E), on oak trees, 15.vi.2017, Leg. M. Mirab-balou .

Description: Female macroptera ( Figure 2A ). Body dark brown, distal half of fore tibiae and apex of middle and hind tibia yellow ( Figure 3F ), all tarsi yellow; antennal segment I dark brown, segment II pale brown, segments III–VI yellow with brownish shade, and segments VII & VIII brown ( Figure 3E ); fore wing hyaline but brown at basal part ( Figure 3H ); major body setae brown-shaded.

Head: Antennae 8-segmented ( Figure 3E ), with one sensorium on antennal segment III and four sensorial on segment IV. Head slightly longer than wide, with developed maxillary bridge; maxillary stylets very near to postocular setae ( Figure 3A ); postocular setae long and finely pointed, reaching to middle of compound eye. Cheeks weakly rounded. Mouth cone short.

Thorax: Pronotum transverse, notopleural sutures complete ( Figure 3B ); five pairs of developed setae present: anteromarginal setae minute, anteroangular, midlateral, posteroangular setae and epimeral setae, all almost blunt; basantra and ferna present and well developed; ferna broad. Mesonotum weakly reticulated. Mesopresternum boat-shaped. Metanotum weakly reticulate, with median slender and acute setae at middle of sclerite ( Figure 4B ). Fore tarsi without tooth ( Figure 3D ). Fore wing with 8–10 duplicated cilia; subbasal setae arranged in a line ( Figure 3C ), S1 and S2 setae blunt, S3 setae pointed and slightly curved ( Figure 3C ); fringe cilia smooth.

Abdomen: Pelta shaped as triangle ( Figure 4C ). Anterior pair of wing-retaining setae on abdominal tergites II–VII weaker than posterior one ( Figure 4A ); tergite VII with a pair of campaniform sensilla (CPS) very near to each other ( Figure 4A ), with four microsetae around the sensilla; abdominal tergite VIII with CPS far from each other ( Figure 4A ). Tube length short, less than twice as long as basal width; anal setae about as long as tube length ( Figure 3G ).

Measurements of holotype female: Body length 2150. Head, length 218; median width 213; postocular setae 72. Pronotum, length 160; width 300; major setae anteromarginal 8, anteroangular 32, midlateral 36, epimeral 67, posteroangular 55. Fore wing length 880; fore wing subbasal setae 38, 38, 57. Abdominal tergite IX setae S1 95, S2 95. Tube length 110; basal width 70. Antennal segments I–VIII as follows: I 28(40), II 35(30), III 50(28), IV 56(35), V 50(30), VI 47(26), VII 43(22), and VIII 30(13).

Male macroptera ( Figure 2B ): Morphologically very similar to female; fore tarsi also without tooth; with no pore plates on abdominal sternites; abdominal tergite IX with short and stout S2 setae. Tube longer than female ( Figure 4D ). Pseudovirga slender, and rounded at apex.

Measurements of male: Distended body length 1810. Abdominal tergite IX setae S2 35.

Remarks: The new species is most similar to Haplothrips aculeatus (Fabricius) , but it is readily distinguished from the latter by the following characteristics: fore tarsal tooth absent in both sexes (versus present and variable in size in aculeatus ); pronotal major setae blunt (versus pointed in aculeatus ); subbasal setae S1 and S2 finely blunt (versus pointed in aculeatus ); shape of pseudovirga quite different in the male of both species.

In addition, the new species looks like H. andresi and H. subtilissimus in color of body and antennal segments, antennal segment III with one sensorium, and short tube. However, this new species can be distinguished by combinations of the following characters: pronotal anteromarginal setae minute, but well developed in andresi and subtilissimus ; fore wing subbasal setae S1 and S2 finely blunt but capitate in andresi and subtilissimus ; male fore tarsi without tooth but with small tooth in andresi and subtilissimus .

Distribution: Iran (Ilam Province).

Etymology: This new species is named in honor of Professor Mohammad Aliakbari, Dean of Ilam University, Iran.

Key to species of Haplothrips from Iran

[ H. longipes Bagnall and H. rabinovitchi Priesner was not included: see Minaei and Mound (2008) for more information]

1. Fore wing without duplicated cilia [subgenus Trybomiella ]...........................................................................2 - Fore wing with duplicated cilia [subgenus Haplothrips ]...................................................................................................3 2. Body dark brown .................................. clarisetis Priesner - Body bicolored brown and yellow ........................................ ................................................... navvabi Minaei et Ramezani 3. Metanotum with small setae anterior to median pair of setae.........................................................................................4 - Metanotum without any small setae anterior to median pair of setae.............................................................................5 4. Metanotum with one pair of small setae anterior to median pair of setae; pronotal anteromarginal setae pointed ........................................... kermanensis zur Strassen - Metanotum with 2–4 pairs of small setae anterior to median pair of setae; pronotal anteromarginal setae blunt or capitate ................................. herajius Minaei & Aleosfoor 5. Fore wing subbasal setae arranged in a triangle................6 - Fore wing subbasal setae arranged in a line..........................9 6. Distal cilia of fore wing with surface plumose ................... .......................................................................... reuteri (Karny) - Distal cilia of fore wing smooth..........................................7 7. Antennal segment III with one sensorium; postocular setae and pronotal setae pointed ............................................ .................................................... zabolius Minaei & Mokhtari - Antennal segment III with two sensorial; postocular setae and pronotal setae acute or capitated.........................8 8. All tarsi yellow; antennal segments III–V paler than other segments; postocular setae, pronotal setae and subbasal setae of fore wing acute .............. caespitis Priesner - Fore tarsi yellow; antennal segment III paler than other segments; postocular setae, pronotal setae and subbasal setae of fore wing capitate ........................................................ ............................................ rasouliani Mirab-balou & Chen 9. Antennal segment III with no sensorium or with one sensorium much smaller than the sensoria on segment IV .......................................................................... minutus (Uzel) - Antennal segment III with one or two developed sensoria.................................................................................................10 10. Body clearly bicolored brown and yellow ........................ .................................................................. flavicinctus (Karny) - Body mainly brown to dark brown..................................11 11. Antennal segment III with one sensorium; tube short ...................................................................................................12 - Antennal segment III with two sensoria; tube short or long........................................................................................23 12. Pronotal anteromarginal setae well developed............13 - Pronotal anteromarginal setae reduced or minute.........18 13. Fore tarsal tooth absent; pronotal major setae pointed ............................................................... phyllophilus Priesner - Fore tarsal tooth present (absent in some females); pronotal major setae blunt or capitate...............................14 14. Postocular setae pointed ................ eragrostidis Priesner - Postocular setae blunt or capitate....................................15 15. Fore wing subbasal setae S1 and S2 blunt ......................... ................................................................ maroccanus Priesner - Fore wing subbasal setae S1 and S2 capitate.......................16 16. Pronotal and postocular setae capitates; fore wing subbasal setae S3 blunt ........................ ganglbaueri Schmutz - Pronotal setae blunt, postocular setae blunt or capitate; fore wing subbasal setae S3 pointed..................................17 17. Body major setae dark ............................ andresi Priesner - Body major setae shaded to pale ........................................... ............................................................ subtilissimus (Haliday) 18. Postocular setae blunt....................................................19 - Postocular setae pointed .................................................. 21 19. All tibiae and tarsi yellow..............................................20 - All tarsi and apical half of fore tibiae yellow, the rest brown .................................................................... kurdjumovi Karny 20. Antennal segments I–II and VII–VIII brown ................. .................................................................... flavitibia Williams - Antennal segments I & VII–VIII brown .............................. ..................................................................... knechteli Priesner 21. Middle and hind tibiae brown to dark brown; pronotal major setae pointed .............................. aculeatus (Fabricius) - Middle and hind tibiae at least yellow in apical quarter; pronotal major setae blunt ................................................. 22 22. Fore tarsal tooth absent in both female and male; major body setae shaded ..................................... aliakbarii sp. nov. - Female without tooth, but male with very small tooth; major body setae dark brown .................... globiceps Bagnall 23. Pronotal and subbasal wing setae usually short; postocular setae acute and short ....... leucanthemi (Shrank) - Pronotal and subbasal wing setae usually long; postocular setae variable in shape and usually extending beyond posterior margin of eyes ..................................................... 24 24. Pronotal major setae capitated ....... cahirensis (Trybom) - Pronotal major setae blunt or pointed.............................25 25. Mesopresternum boat-shaped......................................26 - Mesopresternum eroded medially into two lateral triangles.................................................................................27 26. Tube short; postocular setae pointed; fore wing subbasal setae S1, S2 and S3 blunt ...................... distinguendus (Uzel) - Tube long; postocular setae acute; fore wing subbasal setae S1, S2 blunt, S3 pointed ..................... vuilleti Priesner 27. Fore wing subbasal setae capitated; tube short ................ ................................................................ tamaricinus Priesner - Fore wing subbasal setae pointed, rarely blunt; tube long.................................................................................................28 28. Postocular and pronotal major setae long and blunt; body major setae dark brown; antennal segments III–VI mainly yellow ............................................ verbasci (Osborn) - Postocular and pronotal major setae pointed; body major setae pale; antennal segment III mainly yellow ..................... ................................................................... tritici (Kurdjumov)

Figures

Figure 2. Haplothrips aliakbarii sp. nov. A- Female, holotype; B- male, paratype.

Figure 3. Haplothrips aliakbarii sp. nov. (holotype). A- Head; B- pronotum; C- fore wing subbasal setae; D- fore tarsus in female; Eantenna; F- mid and hind legs; G- abdominal tergites VIII and IX; H- fore wing.

Figure 4. Haplothrips aliakbarii sp. nov. (holotype). A- Abdominal tergites VII–VIII; B- meso- and metanotum; C- pelta; D- tube of male, paratype. CPS = Campaniform sensilla.