Hindsiothrips sisakhti Minaei

Minaei, Kambiz, 2013, The Phlaeothrips - lineage of fungus feeding thrips (Thysanoptera: Phlaeothripidae) in Iran with a new species of Hindsiothrips, Zootaxa 3599 (3), pp. 279-290 : 281-282

Hindsiothrips sisakhti Minaei n. sp.

Female aptera. Body and legs typically pale-yellow, usually with brown markings medially on tergites II–VIII; antennal segments IV–VIII and abdominal tergites II–IX pale-brown, tube brown; all major setae pale. Antennae 8- segmented, III with 1 outer sensorium, IV with 3 sensoria (2 outer and 1 inner), VIII weakly constricted at base ( Fig. 3 ). Head as wide as long ( Fig. 8 ); mouth cone rounded maxillary palps 2-segmented; maxillary stylets less than one third of head width apart medially, retracted to compound eyes, maxillary bridge not developed ( Fig. 8 ); ocelli not or only weakly developed, sometimes with two ocelli, compound eyes each with less than 10 facets; postocular setae pointed or bluntly pointed. Pronotum with 5 pairs of major setae: am, aa, ml, epim, and pa ( Fig. 8 ); all pointed but posteroangular sometimes blunt; prontotal epimeral sutures complete ( Fig. 8 ), fore tarsi with small tooth ( Fig. 16 ). Prosternal basantra developed, ferna broader than long ( Fig. 15 ). Mesonotum weakly sculptured, four small and acute posterior setae; metanotum without sculpture, median setae acute. Pelta rounded apically, weakly sculptured, with one pair of campaniform sensilla (Fig. 22); abdominal tergites without sigmoid setae, III–VIII without sculpture, setae S1 and S2 pointed (Fig. 24), sometimes S1 on VIII blunt; tergite IX setae acute, S1 smaller than S2 and S3 and about 0.8 as long as tube (Fig. 25).

Measurements (holotype female in microns). Body length 1386. Head, length 157; maximum width 155; postocular setae 35. Pronotum, length 127; median width 190; major setae am 29, aa 21, ml 30, epim, 34, pa 30. Pelta length 51, median width 86, tergite III, median discal setae 18; major marginal setae 32. Tergite IX setae S1 61; 86; 106. Tube length 85; dorsal anal setae 117. Antennal segments III–VIII length 36, 40, 40, 42, 42, 33. Male aptera. Color and sculpture (also size of fore tarsal tooth) similar to female. tergite IX S2 short and stout (Fig. 26). Sternites without pore plates.

Measurements (paratype male in microns). Body length 1275. Head, length 146; maximum width 142; postocular setae 38. Pronotum, length 125; median width 190; major setae am 26, aa 30, ml 25, epim, 43, pa 33. Pelta length 49, median width 80, tergite III, median discal setae 17; major marginal setae 32. Tergite IX setae S1 61, S 2 23, 85. Tube length 76; dorsal anal setae 140. Antennal segments III–VIII length 34, 39, 37, 36, 35, 28.

Material studied. Holotype female, IRAN, Kohgiluyeh and Boyer-Ahmad, Sisakht, from foliage leaf under Quercus sp., 29.viii. 2008 (Moslem Behmanesh). Paratypes: 4 females, 7 males taken with holotype.

Comments. The presence of only one sensorium on antennal segment III in this new species also occurs in the type species of the genus, H. pullatus , but the later is dark brown in contrast to the new species which is almost pale-yellow. Morover, in H. pullatus , pronotal epimeral sutures are incomplete (c.f. Fig. 13 ) (complete in the new species) and pelta nearly rectangular (rounded in the new species). In addition to the difference in number of sensoria on antennal segment III, postocular setae are pointed or bluntly pointed in H. sisakhti whereas these are capitate in the European species in this genus.

Etymology. Sisakht is the capital of Dena County, Kohgiluyeh and Boyer-Ahmad Province, Iran. The city is located on the foothills of Zagros Mountains, 34 km from Yasuj, in the northern part of the Province.

Figures

FIGURES 1 – 7. Antennae (1) Aleurodothrips fasciapennis; (2) Hindsiothrips bonessi; (3) Hindsiothrips sisakhti; (4) Idiothrips bellus; (5) Idiothrips (segments I – IV) (6) Hoplandrothrips bidens (segments III – IV); (7) Stictothrips fimbriata.

FIGURES 8 – 12. Head and / or pronotum (8) Hindsiothrips sisakhti; (9) Hoplandrothrips bidens; (10) Idiothrips bellus; (11) Hoplothrips sp.; (12) Idiothrips (male).

FIGURES 16 – 18. Forelegs (16) Hindsiothrips sisakhti; (17) Idiothrips bellus; (18) Idiothrips bellus (male).

FIGURES 13 – 15. Thoracic details: (13) Hindsiothrips bonessi (pronotum - major setae not shown); (14) Stictothrips fimbriata — pronotum, mesonotum and metanotum; (15) Hindsiothrips sisakhti — prosternum