Mycterothrips nastarani, Alavi, Jalil, Awal, Mehdi Modarres, Fekrat, Lida & Minaei, Kambiz, 2013

Alavi, Jalil, Awal, Mehdi Modarres, Fekrat, Lida & Minaei, Kambiz, 2013, The genus Mycterothrips (Thysanoptera: Thripidae) in Iran, with three new species, Zootaxa 3718 (4), pp. 345-356 : 350-354

Mycterothrips nastarani sp.n.

( Figs. 8–17 )

Female macroptera. Body and legs uniformly yellowish white; fore wings yellow but slightly shaded at basal half, with a white small marking just below the gap of basal setal row of first vein ( Fig. 8 ); antennal segment III pale brown with third base pale, IV–VIII pale brown.

Head 1.2–1.5 times as wide as long ( Fig. 9 ); three pairs of ocellar setae present, pair III situated between posterior ocelli and 3.2–4 times as long as distance between their bases; postocular setae I longer than others. Antennae 8-segmented, with forked sense-cones on segments III and IV ( Fig. 10 ).

Pronotum 1.5–1.7 times as wide as long, anterior margin with six setae ( Fig. 9 ), posterior margin with 4–6 setae with about 18–22 discal setae, posteroangular setae I about 1.1 times as long as setae II. Mesonotum with CPS; median pair of setae situated far from posterior margin ( Fig. 11 ); Metascutum weakly reticulated medially, median pair of setae situated near anterior margin, CPS absent; Meso- and metasternum with spinula. Fore wing upper vein with 7 basal and 2 distal setae, lower vein with 9–12 setae, clavus with 5 veinal setae and one discal seta.

Abdominal tergites laterally without ciliate microtrichia on lines of sculpture, but with irregular dentate. ( Fig. 12–13 ); tergite II with four lateral marginal setae; tergites VII–VIII with setae S4 minute; tergite VIII with complete posteromarginal comb, microtrichia fine and long; tergite IX with only anterior pair of CPS ( Fig. 13 ); sternite I with 1–3 (usually 3) very small setae between the hind coaxe, sternite II with 0–1 (usually 0) discal setae, III with 3–6, IV with 5–9, V with 6–12 (usually 7–11), VI with 7–16 (usually 10–12) and VII with 11–20 (usually 15–18) discal setae ( Fig. 14 ); median pair of marginal setae on sternite VII situated far from posterior margin. Ovipositor well developed.

Measurements (holotype female, in microns). Body length 1250. Head length (width across cheeks) 87 (130), ocellar setae III length (interval) 51.2 (16.2). Pronotal median length (width) 90 (162), posteroangular setae I length 50, setae II length 45, posteromarginal setae I length 31, setae II length 15. Metascutal median length 77, median setae length 28.7. Fore wings length 750. Tergite IX median length 58, S1 setae length 74, S2 seta length 43.8, S3 setae length 70. Ovipositor length 183. Antennal segments I to VIII length (width) as follows: 25 (25), 37.5 (25), 50 (17.5), 49.2 (17.5), 35 (17.5), 47.5 (18.7), 11.2 (8), 15 (5).

Male macroptera. Body smaller than female. Antenna 8-segmented; length of segment VI distinctly longer than that of segment VI in female (about 2 times), about 0.6 times as long as combined length of segments I to V ( Fig. 15 ), with numerous long setae and without microtrichia on both dorsal and ventral view. Abdominal tergite IX with SS1 setae shorter than half length of S1 setae, and with CPS ( Fig. 17 ); sternites II with 0–2 discal setae, III with 4–6, IV with 4–6, V with 5–7, VI with 6–10, VII with 8–11 and VIII with 10 discal setae ( Fig. 16 ); Hypomere weakly expended at apex.

Measurements (paratype male, in microns). Body length 1000. Head length (width across cheeks) 87 (113), compound eye dorsal length (width) 55 (45), ocellar setae III length (interval) 47.5 (13). Pronotal median length (width) 85 (130), posteroangular setae I length 45, setae II length 33, posteromarginal setae I length 25, setae II length 7.5. Metascutal median length 67.5, median setae length 25. Fore wings length 630. Antennal segments I to V as follows: 22.5 (23.8), 36.2 (22.5), 46.2 (16.2), 37.5 (17.5), 23.8 (17.5), 97.5 (19.2), 5 (5) and 7.5 (4.5).

Material studied. Holotype female: IRAN, Khorasan-e Shomali province, Bojnourd, Langar village, from Rosa moschata , 30.v.2013, J. Alavi.

Paratypes: 11 females, same data as holotype; 2 females and 3 males, same locality and date as holotype, from Rosa foetida, J. Alavi ; 6 females and 1 male, same locality and date as holotype, from Rosa canina, J. Alavi ; 15 females, Ghasr-e ghajar village, same date as holotype, from Rosa moschata, J. Alavi.

Comments. Although found in both this new species and M. mahvelatensis , the presence of sternal discal setae is unusual in Mycterothrips . Females of this new species are similar to M. mahvelatensis in the following character states: body uniformly yellowish white; forked sense-cones on antennal segments III and IV shorter than length of antennal segment V; mesonotum with anteromedian CPS; abdominal tergites laterally without numerous ciliate microtrichia on sculpture lines, tergite IX with only anterior pair of CPS, sternites with discal setae. However, this species can be distinguished from M. mahvelatensis as follows: anterior margin of pronotum with six setae (vs. four in M. mahvelatensis ), abdominal sternites III–VII with discal setae (vs. V–VII or VI–VII in M. mahvelatensis ), tergite II with four lateral marginal setae (vs. three in M. mahvelatensis ). This new species is similar to the common species, M. tschirkunae , in body colour and size. It can be distinguished from M. tschirkunae as follows: in female, anterior margin of pronotum with six setae (vs. four in M. tschirkunae ); mesonotum with paired CPS anteromedially (vs. absent in M. tschirkunae ); abdominal sternites III–VII with discal setae (vs. absent in M. tschirkunae ); tergite II with four lateral marginal setae (vs. three in M. tschirkunae ); abdominal tergite IX with anterior pair of CPS (vs. absent in M. tschirkunae ); median pair of marginal setae on sternite VII situated far from posterior margin (vs. situated at posterior margin in M. tschirkunae ). In male, abdominal sternites III–VIII with discal setae (vs. VII–VIII with discal setae in M. tschirkunae ); abdominal tergite IX with SS1 setae shorter than half length of S1 setae and with CPS (vs. slightly shorter than S1 setae and absent CPS in M. tschirkunae ).

Etymology. This species name refers to the Persian name of the host "Nastaran"

Mycterothrips sanubari sp.n. ( Figs. 18–23 )

Female macroptera. Body generally pale brown; major setae of pronotum yellowish brown; legs mainly pale brown, fore femora slightly darker at posterior margin, mid- and hind femora paler at base and apex, hind tibiae sometimes slightly darker at middle; fore wings and scales uniformly yellowish brown; head with round brown marking between ocelli ( Fig. 18 ); mesonotum shaded at anterior margin and each side of middle; metanotum shaded; abdominal tergites II–VIII dark ridge along median part of antecostal and medial lines; antennal segments I yellow, II brown, III yellow, slightly shaded at apex, IV pale brown with base yellow, V brown with basal fourth yellow, VI–VIII brown.

Head slightly rounded at cheeks, 1.3 times as wide as long ( Fig. 18 ); three pairs of ocellar setae present, pair III situated between posterior ocelli and 2.8 times as long as distance between their bases, postocular setae I slightly longer than others. Antennae 8-segmented, with forked sense-cones on segments III and IV ( Fig. 19 ).

Pronotum 1.6 times as wide as long, anterior and posterior margin each with four setae ( Fig. 18 ), with about 16 discal setae, posteroangular setae I almost as long as setae II; Mesonotum with one (not pair) CPS anteromedially, median pair of setae near posterior margin ( Fig. 20 ); Metascutum weakly and irregularly reticulated medially, median pair of setae situated near anterior margin; Meso- and metasternum with spinula. Fore wings upper vein with 7 basal and 1 distal setae ( Fig. 21 ), lower vein with 13 setae, clavus with 6 (right) 5 (left) veinal setae and one discal seta.

Abdominal tergites laterally and pleurotergites with ciliate microtrichia on lines of sculpture ( Fig. 22 ), a few lines of sculpture lines slightly extending mesad of S2 setae on tergites II to VIII, posterior margin of tergites II to VII with microtrichia developed laterally; tergite II with four lateral marginal setae ( Fig. 22 ); tergites VI to VIII with S4 setae minute; tergite VIII with complete posteromarginal comb, microtrichia fine and long; tergite IX with both anterior and posterior pairs of CPS ( Fig. 23 ); tergite X with incomplete median slit distally; sternites without discal setae, median pair of setae of VII setae situated at posterior margin. Ovipositor well developed.

Measurements (holotype female, in microns). Distended body length 1500. Head length (width across cheeks) 137 (172), ocellar setae III length (interval) 55 (22). Pronotal median length (width) 137 (215), posteroangular setae I length 60, setae II length 56.2, posteromarginal setae I length 27.5, setae II length 13.7. Metascutal median length 82.5, median setae length 48.7. Fore wings length 850. Tergite IX median length 87.5, S1 setae length 112, S2 seta length 65, S3 setae length 121. Ovipositor length 225. Antennal segments I to VIII length (width) as follows: 27.5 (30), 42.5 (27.5), 55 (18.7), 48.7 (20), 38.7 (18.7), 57.5 (20.5), 8.7 (7.5), 15 (5.5).

Male unknown.

Material studied. Holotype female: IRAN, Khorasan-e Shomali province, Bojnourd, Kohnekand, from Populus nigra , 21.ix.2011, J. Alavi.

Comments. Judging from Masumoto and Okajima (2006), this new species is similar to M. glycines in the following character states: antennal segment VI longer than IV, abdominal tergites laterally with numerous ciliate microtrichia on sculpture lines, tergite II with four lateral marginal setae, tergites VII to VIII with S4 setae minute, S4 setae usually minute on tergite VI, tergite IX with two pairs of CPS, sternites without discal setae. However, the female of this new species can be distinguished from M. glycines as follows: antennal segment III yellow, slightly shaded at apex, V brown with basal fourth yellow (vs. III yellowish brown with basal third yellow, V dark brown in M. glycines ), VI the longest (vs. III the longest in M. glycines ), pronotum with about 16 discal setae (vs. about 40 discal setae in M. glycines ), mesonotum with CPS anteromedially (vs. absent in M. glycines ).

This species can be distinguished from the other eight Mycterothrips species in Iran by the presence of regular ciliate microtrichia on abdominal tergites laterally as well as on pleurotergites II–VIII.

Etymology. This species name refers to the Persian name of the host plant "Sanubar".

Figures

FIGURES 8 – 17. Mycterothrips nastarani sp. n. Female: (8 – 14); Male: (15 – 17): (8) Base of fore wing and scale (left); (9) Head & pronotum; (10) Antenna (right); (11) Mesonotum & metascutum; (12) Tergites II – IV; (13) Tergites VII – X; (14) Sternites IV – VII; (15) Antenna (leftt); (16) Sternites IV – IX; (17) Tergites VIII – X.

FIGURES 18 – 23. Mycterothrips sanubari sp. n. Female: (18 – 23): (18) Head & pronotum; (19) Antenna (right); (20) Mesonotum & metascutum; (21) Fore wing (left); (22) Tergites II – IV; (23) Tergites VIII – X.