832 research outputs found
Process-induced microstructural variations in laser powder bed fusion of novel titanium alloys: A comprehensive study on volumetric energy density and alloying effects
No full textThis study explores the effect of in-situ alloying and volumetric energy density (VED) on the microstructure of Laser Powder Bed Fusion (L-PBF) fabricated Ti alloys. Pure Ti, Ti–5Cu, and Ti–5Cu–1Si (wt%) samples were printed using elemental powders with varying VEDs. This study investigates the influence of VED and Cu/Si additions on the growth restriction factor (Q) and columnar-to-equiaxed transition of the β phase. Pure Ti samples exhibited coarse, prior columnar β grains with an average diameter of 106 μm, and a grain shape factor greater than 3.0. In contrast, both Ti–Cu and Ti–Cu–Si samples displayed a significant fraction of equiaxed prior β grains with a near-spherical morphology. Additionally, Cu/Si addition refined the prior β columnar grains, reducing their average diameter to 37 μm and 25 μm in Ti–Cu and Ti–Cu–Si, respectively. Furthermore, the study reveals a strong dependence of microstructure on VED in the Ti–5Cu–1Si alloy. Higher VED promotes a more uniform distribution of solute elements and a lower thermal gradient, resulting in finer equiaxed β grains with an average diameter of 4.9 μm, compared to samples printed at lower VEDs. The addition of Cu and Si also significantly refined the lath-like α phase and decreased the c/a ratio of the Ti HCP lattice, introducing lattice microstrains in the Ti–Cu and Ti–Cu–Si alloys. These findings demonstrate the potential of in-situ alloying and VED optimization for tailoring microstructures in novel Ti alloys fabricated via L-PBF, paving the way for achieving superior mechanical properties
FIGURE 1. A in Trisetum spicatum (Poaceae: Pooideae): an interglacial relict in the Iranian mountains
No full textFIGURE 1. A. Herbarium specimen of Trisetum spicatum. B. Peduncle. C. Spikelet. D. Lemma. E. Palea. (based on A. Talebi 48424). (Photography by: Talebi)Published as part of Talebi, Amir, Naqinezhad, Alireza & Attar, Farideh, 2022, Trisetum spicatum (Poaceae: Pooideae): an interglacial relict in the Iranian mountains, pp. 85-92 in Phytotaxa 532 (1) on page 86, DOI: 10.11646/phytotaxa.532.1.7, http://zenodo.org/record/590094
Effect of In-Situ Alloying with Si on the Microstructure of a Novel Ti-5Cu Alloy Manufactured by Laser Powder Bed Fusion
No full textThe present work aims to explore the influence of Si addition on the microstructure of a novel Ti-5Cu alloy produced by the Laser Powder Bed Fusion (L-PBF) technique, under an in-situ alloying strategy. For this purpose, Ti–5Cu and Ti–5Cu–1Si samples were manufactured under the same volumetric energy density (VED), i.e., 50.26 J/mm3. The findings revealed that incorporating 1 wt% Si into the Ti-5Cu alloy converted the prior β columnar and equiaxed grains with an average size of 41 μm and 22 μm, respectively, to finer equiaxed prior β grains within the Ti-5Cu-1Si microstructure, which featured with an average size of about 8 μm. Greater tendency for columnar to equiaxed transition and a notable grain refinement with Si addition were linked to a greater constitutional supercooling zone created by the rejection of Si solute atoms in front of the solidification front. Comparison of the solidification ranges for Ti-5wt%Cu and Ti-1wt%Si alloys plotted by PANDAT software revealed that Si has a more severe impact on the solidification range than Cu, making it a potentially better option for inducing columnar to equiaxed transition. Incorporating 1% Si to the Ti-5Cu alloy increased the growth restriction factor from 35 to 60 K, resulting in an almost 3-fold reduction in grain size. Addition of Si to the Ti-5Cu alloy also significantly refined the average length of α lath from about 4 μm to about 1.7 μm in the microstructure of Ti–Cu–Si alloys
Choeras qazviniensis Abdoli & Talebi & Farahani & Fernandez-Triana 2019, sp. nov.
No full text<i>Choeras qazviniensis</i> Fernandez-Triana & Talebi sp. nov. <p>(Figs 5a–h)</p> <p>urn:lsid:zoobank.org:act: 868F3B37-F4EF-4D4E-B86E-90F26A87884E</p> <p> <b>Diagnosis:</b> Pterostigma with a small light spot basally; vein r-m well developed, areolet closed; length/width T1: 1.40, slightly arched (barrel-shaped), with two yellow bands on lateral sides, T1 anterior two third with weak sculptures to smooth; T3+ yellow, medially with a brown band; ovipositor sheaths almost as long as metatibia.</p> <p> <b>Description.</b> Body length without ovipositor: 4.00 mm.</p> <p>Head: Antenna shorter than body; F 2/8/15 length/width: 2.50/2.40/1.25; mouthparts not elongated; gena, vertex and lower face densely and rather finely punctate; upper face smooth and setose; lower face with a weak median longitudinal carina on upper half, clypeus punctured; labrum flat and smooth; malar space length 0.32× basal width of mandible (Figs 5a,b); OOL/OD/POL length: 0.16/0.08/ 0.13 mm (Fig. 5c).</p> <p>Mesosoma: Anteromesoscutum length 0.80× its maximum width, densely punctate, posterior area with weak punctures to smooth; notauli not defined; scutoscutellar sulcus with visible crenulation; mesoscutellar disc smooth and shiny; side of mesoscutellar disc with wider crenulate depression; anterior area of metanotum smooth and with coarse wrinkles posteriorly; propodeum smooth with a rugose median band, and a complete median longitudinal carina (Fig. 5e); side of pronotum smooth; propleuron smooth or weakly punctate; prepectal carina absent; mesopleuron medially smooth, at anterolateral and ventrolateral punctate; metapleuron smooth, anterodorsal corner rugulose, with deep medial pit at anterior half (Fig. 5d).</p> <p>Wings: Fore wing. length: 4.00 mm; pterostigma length/width: 2.10; pterostigma distinctly shorter than vein R1; vein R1 5.50× as long as distance of vein R1 to vein 3RSb; vein r slightly shorter vein 2RS; vein 1M/m-cu length: 2.90; vein 3RSa distinct; areolet closed; vein 1-CUb almost as long as vein 1-CUa. Hind wing. vein M+CU/ 1-M length: 1.10; vein cu-a weak curved; vanal lobe with fringe anteriorly and slightly posteriorly, posterior margin partly straight (Figs 5f,g).</p> <p>Legs: Metacoxa laterally smooth; metafemur/metatibia/metabasitarsus/sum of other segments metatarsus length: 1.03/1.23/0.61/ 0.80 mm, respectively; metafemur length/width: 3.10; metatibial spurs length unequal; internal metatibial spurs/metabasitarsus length: 0.50 (Fig. 5d).</p> <p>Metasoma: T1 slightly curved, T1 length 1.40× its maximum width, barrel-shaped (i.e. anterior and posterior margins narrowed); anterior two third of T1 with weak sculptures to smooth, posterior one third rugose; T1 posterior width 2.50× T2 length medially; T2 transverse and rugose, medially slightly smooth; T3/T2 length: 2.80; T3+ smooth (Fig. 5h); ovipositor sheath curved downwards, rather widened posteriorly; ovipositor sheath length 1.20 mm, approximate as long as metatibia; hypopygium membranous and apically acute (Fig. 5d).</p> <p>Colouration: Body black; labrum, mandibles, palpi, scape and tegulae yellow; clypeus brown; legs almost yellow; metacoxa reddish yellow with a basal dark spot; metatibia posteriorly with a dark spot; distal half of metatibial segments brown (Fig. 5d); wings with brownish yellow setae; wings venation brown and yellow; pterostigma brown with a small light spot basally (Figs 5f,g); T1 with two yellow lateral bands; T3+ yellow, medially with a brown band (Fig. 5h).</p> <p> <b>Etymology:</b> The new species is named after the type locality. The species name " <i>qazviniensis "</i> is an adjective derived from the Qazvin province in the north of Iran.</p> <p> <b>Notes:</b> This species runs in the key by van Achterberg (2002) and Kotenko (2007) to <i>C. tiro</i> (Reinhard, 1880), it differs from <i>Choeras qazviniensis</i> <b>sp. nov.</b> as follows: in <i>C. tiro</i> pterostigma with a yellow spot on basal one third; T3/T2 length: 1.50–2.00; one third of metafemur black or with combination of black and yellow pattern. This species runs in the key by Song <i>et al.</i> (2014) to couplet 8. Two branches of the couplet 8 differ from <i>Choeras qazviniensis</i> <b>sp. nov.</b> as follows: in <i>C. longitergitus</i> Song & Chen, 2014 (first branch of couplet 8) T1 sharply narrowed apically; T1 and T2 largely smooth, only small areas rugose; T2 subtriangular. In the second branch of couplet 8 propodeum strongly rugose; T1 distinctly rectangular and parallel-sided.</p>Published as part of <i>Abdoli, Parisa, Talebi, Ali Asghar, Farahani, Samira & Fernandez-Triana, Jose, 2019, Three new species of the genus Choeras Mason, 1981 (Hymenoptera: Braconidae, Microgastrinae) from Iran, pp. 77-92 in Zootaxa 4545 (1)</i> on pages 85-86, DOI: 10.11646/zootaxa.4545.1.4, <a href="http://zenodo.org/record/2618679">http://zenodo.org/record/2618679</a>
Choeras fulviventris Abdoli & Talebi & Farahani & Fernandez-Triana 2019, sp. nov.
No full text<i>Choeras fulviventris</i> Fernandez-Triana & Abdoli sp. nov. <p>(Figs 4 a–h)</p> <p>urn:lsid:zoobank.org:act: 25C38D2E-7622-4A2A-B4CF-277B741B857F</p> <p> <b>Type material.</b> Holotype: ♀ (TMUC), Mazandaran province: Noor, Chamestan, Joorband (36°26′17.28″ N, 52°07′16.62″ E, 272m a.s.l.), 16. viii.2011.</p> <p> <b>Diagnosis:</b> Vein r not curved and as long as vein 2RS; vein r-m well developed, areolet closed; pterostigma evenly brown or with an indistinct yellow spot basally; vein R1 5.00× as long as distance of vein R1 to vein 3RSb; T1 rugose, narrowed posteriorly, T1 length 1.60× its maximum width; hypopygium largely membranous; propodeum with a rugose median band and a complete median longitudinal carina; metafemur yellow; suture between T2 and T3 more or less developed, crenulated; T3+ yellow.</p> <p> <b>Description.</b> Body length without ovipositor: 3.10 mm.</p> <p>Head: Antenna slightly shorter than body; F 2/8/15 length/width: 3.50/2.50/1.25; mouthparts slightly elongated; gena, vertex and lower face densely and rather finely punctate; upper face smooth and setose; lower face with a weak medial longitudinal carina on upper half; clypeus punctured; labrum flat and smooth; malar space length 0.28× basal width of mandible (Figs 4a,b); OOL/OD/POL length: 0.15/0.08/ 0.10 mm (Fig. 4c).</p> <p>Mesosoma: Anteromesoscutum length 0.80× its maximum width, densely punctate, posterior area with weak punctures to smooth; notauli not defined; scutoscutellar sulcus with visible crenulation; mesoscutellar disc with sparse punctures to smooth, shiny; side of mesoscutellar disc with wider crenulate depression; metanotum with coarse wrinkles on posterior; propodeum slightly wrinkle to smooth with median longitudinal band of rugosity, and a complete median longitudinal carina (Fig. 4e); side of pronotum rugose; propleuron smooth; prepectal carina absent; anterolateral and ventrolateral of mesopleuron punctate, medially smooth; metapleuron smooth with deep medial pit on anterior half (Fig. 4d).</p> <p>Wings: Fore wing. length: 3.10 mm; pterostigma length/width: 2.20; pterostigma slightly shorter than vein R1; vein R1 5.00 × as long as distance of vein R1 to vein 3RSb; vein r as long as vein 2RS; vein 1M/m-cu length: 2.75; vein 3RSa long and distinct; areolet closed; vein 1-CUb slightly shorter than vein 1-CUa (Fig. 4f). Hind wing: vein M+CU/1-M length: 1.20; vein cu-a slightly curved; vanal lobe with fringe anteriorly and slightly on posterior, posterior margin partly straight (Fig. 4g).</p> <p>Legs: Metacoxa laterally punctate; mesotibial inner spur slightly longer than outer, not reaching to posterior margin of mesobasitarsus; metafemur/metatibia/metabasitarsus/sum of other segments metatarsus length: 0.80/ 1.00/0.45/ 0.60 mm, respectively; metafemur length/width: 3.40; metatibial spurs length unequal, internal metatibial spurs/metabasitarsus length: 0.50 (Fig. 4d).</p> <p>Metasoma: T1 curved, rugose, T1 length 1.60× its maximum width, T1 anterior half parallel-sided or sub parallel-sided and posterior half gradually narrowed posteriorly; T1 posterior width 2.60× T2 length medially; T2 rugose and transverse; T3/T2 length: 3.50; suture between T2 and T3 more or less developed, crenulated; T3+ smooth (Fig. 4h); ovipositor sheath very curved downwards, rather widened posteriorly, ovipositor sheath 0.80× as long as metatibia; hypopygium membranous and apically acute (Fig. 4d).</p> <p>Colouration: Body black; labrum, mandibles, palpi, scape, propleuron, tegulae, parastigma, T3+ yellow; clypeus brown; legs almost yellow to brownish yellow (Fig. 4d); wings with brownish yellow setae; veins of wings brown; pterostigma evenly brown or with an indistinct yellow spot basally (Fig. 4f).</p> <p> <b>Etymology:</b> From Latin "fulvus" (yellow) and "venter" (abdomen), referring to the mostly yellow dorsally metasoma.</p> <p> <b>Notes:</b> This species runs in the key by van Achterberg (2002) to <i>C. ruficornis</i> (Nees, 1834), it differs from <i>fulviventris</i> <b>sp. nov.</b> as follows: in <i>ruficornis</i> vein r-m of fore wing indistinct and areolet open; vein r distinctly shorter than vein 2RS; T1 posterior width equal to T2 length medially; mesotibial inner spur almost twice than outer, reaching to posterior margin of mesobasitarsus. This species runs in the key by Kotenko (2007) to <i>C. psarae</i> (Wilkinson, 1927), it differs from <i>C. fulviventris</i> <b>sp. nov.</b> as follows: in <i>psarae</i> metasoma completely yellow; distal half of metacoxa black; distal parts of metatibia and metatarsus blackish brown; body length: 4.70 mm. This species runs in the key by Song <i>et al.</i> (2014) to couplet 8. two branches of the couplet 8 differ from <i>fulviventris</i> <b>sp. nov.</b> as follows: in <i>longitergitus</i> (first branch of the couplet) T1 sharply narrowed posteriorly; T1 and T2 largely smooth, T2 subtriangular. In the second branch of the couplet 8 propodeum strongly rugose; T1 distinctly rectangular and parallel-sided.</p>Published as part of <i>Abdoli, Parisa, Talebi, Ali Asghar, Farahani, Samira & Fernandez-Triana, Jose, 2019, Three new species of the genus Choeras Mason, 1981 (Hymenoptera: Braconidae, Microgastrinae) from Iran, pp. 77-92 in Zootaxa 4545 (1)</i> on page 83, DOI: 10.11646/zootaxa.4545.1.4, <a href="http://zenodo.org/record/2618679">http://zenodo.org/record/2618679</a>
Choeras formosus Abdoli & Talebi & Farahani & Fernandez-Triana 2019, sp. nov.
No full text<i>Choeras formosus</i> Abdoli & Fernandez-Triana sp. nov. <p>(Figs 3 a–h)</p> <p>urn:lsid:zoobank.org:act: 8C6EE878-B4BA-4D28-8230-5CB5E101EEDE</p> <p> <b>Type material.</b> Holotype: ♀ (TMUC), Alborz province: Chalous Road, Arangeh (35°55′07.20″ N, 51°05′09.24″ E, 1891m a.s.l.), 14.vii.2010; Paratype: 1♀, Mazandaran province: Noor, Chamestan, Joorband (36°26′15.54″ N, 52°07′13.50″ E, 275m a.s.l.), 13.vii.2011 (TMUC).</p> <p> <b>Diagnosis:</b> Head in dorsal view twice as wide as long; vein r-m of fore wing very short, partially defined, vein 3RSa long, areolet open; pterostigma evenly brown, without a yellow spot basally; T1 relatively narrowed apically, T1 posterior width 1.50× T2 length medially; propodeum with complete median longitudinal carina.</p> <p> <b>Description.</b> Body length without ovipositor: 3.50 mm.</p> <p>Head: in dorsal view, head twice as wide as long; antenna almost shorter than body; F 2/8/15 length/width: 3.20/2.20/1.00; mouthparts not elongated; gena, vertex and lower face densely and rather finely punctate; upper face smooth and setose; lower face somewhat flat with a weak medial longitudinal carina on upper half, clypeus punctured; labrum flat and smooth; malar space length 0.35× basal width of mandible (Figs 3a,b); OOL/OD/POL length: 0.15/0.08/ 0.12 mm (Fig. 3c).</p> <p>Mesosoma: Anteromesoscutum length 0.80× its maximum width, finely and densely punctate; notauli not defined; scutoscutellar sulcus with visible crenulation; mesoscutellar disc finely and sparsely punctate; side of mesoscutellar disc with wide crenulate depression; metanotum with uniformly coarse wrinkles; propodeum almost smooth with rugulose area on posterior and lateral margins, median longitudinal band of rugosity, and a complete median longitudinal carina (Fig. 3e); side of pronotum and propleuron smooth; prepectal carina absent; mesopleuron medially smooth but with anterolateral and ventrolateral punctures; metapleuron smooth but anterodorsal corner rugulose and with deep medial pit on anterior half (Fig. 3d).</p> <p>Wings: Fore wing. length: 3.30; pterostigma length/width: 2.30; pterostigma slightly longer than vein R1; vein R1 4.50× as long as distance of vein R1 to vein 3RSb; vein r as long as vein 2RS or slightly longer; vein 1M/m-cu length: 2.20; vein 3RSa long and distinct; vein r-m of fore wing very short and partially defined, areolet open; vein 1-CUb almost as long as vein 1-CUa (Fig. 3f); hind wing. Vein M+CU/1-M length: 1.30; vein cu-a slightly curve; vanal lobe with dense fringes on anterior margin, posterior margin straight with sparse fringes (Fig. 3g).</p> <p>Legs: Metacoxa laterally smooth, dorsally punctate; mesotibial inner spur slightly longer than outer, not reaching to posterior margin of mesobasitarsus; metafemur/metatibia/metabasitarsus/sum of other segments metatarsus length: 0.75/1.10/0.55/ 0.70 mm, respectively; metafemur length/width: 3.55; metatibial spurs length unequal; internal metatibial spurs/metabasitarsus length: 0.50 (Fig. 3d).</p> <p>Metasoma: T1 curved, rugose to rugulose; T1 length 1.90–2.00× its maximum width; T1 anterior half parallelsided or sub parallel-sided and posterior half gradually narrowed posteriorly; T1 posterior width 1.50× T2 length medially; T2 rugose, transverse; T3/T2 length: 1.60; T3+ smooth (Fig. 3h); ovipositor sheath very curved downwards, rather widened posteriorly; ovipositor sheath length: 0.96 mm, almost as long as or slightly shorter than metatibia; hypopygium membranous, acute apically (Fig. 3d).</p> <p>Colouration: Body black; labrum, mandibles, scape and tegula yellow; clypeus brown; palpi, fore and midleg whitish yellow; propleuron with combination of black and yellow marks; anterodorsal corner of mesopleuron reddish yellow; metacoxa reddish yellow with a basal dark spot; wings with brownish yellow setae; veins of wings brown; pterostigma evenly brown (see in Figs 3f,g).</p> <p> <b>Etymology:</b> The species name " <i>formosus "</i> is a Latin adjective meaning "beautiful" and refers to colour pattern of the new species.</p> <p> <b>Notes:</b> This species runs in the key by van Achterberg (2002) to <i>C. ruficornis</i> (Nees, 1834), it differs from <i>Choeras formosus</i> <b>sp.nov.</b> as follows: in <i>C. ruficornis</i> T1 sharply narrowed posteriorly, posterior width approximately equal to T2 medial length, lateral margins of T1 slightly concave on posterior half; vein r distinctly shorter than vein 2RS; mesotibial inner spur twice as long as outer, almost reaching to posterior margin of mesobasitarsus; hypopygium slightly sclerotized; body length: 2.50–3.00 mm.</p> <p> This species runs in the key by Kotenko (2007) to <i>C. almus</i> Tobias & Kotenko, 1984, it differs from <i>Choeras formosus</i> <b>sp. nov.</b> as follows: in <i>almus</i> longitudinal carina of propodeum not reaching the margins and T1 posterior width nearly twice T2 length.</p> <p> This species runs in the key by Song <i>et al.</i> (2014) to <i>C. rugulosus</i> Song & Chen, 2014, it differs from <i>C. formosus</i> <b>sp. nov.</b> as follows: in <i>rugulosus</i> antenna longer than body; head in dorsal view 2.40× as wide as long; malar space length 0.60× basal width of mandible; propodeum strongly rugose, with an indistinct and irregular median longitudinal carina; in fore wing vein r slightly curved; metacoxa brown; ovipositor valve straight; body length: 2.60 mm.</p>Published as part of <i>Abdoli, Parisa, Talebi, Ali Asghar, Farahani, Samira & Fernandez-Triana, Jose, 2019, Three new species of the genus Choeras Mason, 1981 (Hymenoptera: Braconidae, Microgastrinae) from Iran, pp. 77-92 in Zootaxa 4545 (1)</i> on pages 81-83, DOI: 10.11646/zootaxa.4545.1.4, <a href="http://zenodo.org/record/2618679">http://zenodo.org/record/2618679</a>
İflasın Ertelenmesi Talebi Üzerine Alınabilecek Tedbiler ve Erteleme Kararının Sonuçları
No full text4949 sayılı kanunla yeniden düzenlenen İİK m.179’da sermaye şirketleri ve kooperatiflerin doğrudan doğruya iflası düzenlenmiştir. Yine aynı maddede bazı koşulların varlığı halinde alacaklı, borçlu ve kamu menfaatlerini korumak amacıyla iflasın ertelenmesi kurumu düzenlenmiştir. İflasın ertelenmesi kurumu daha önce TTK m.324,II de düzenlenmişti, ancak yeteri kadar detaylı olmadığı için uygulama alanı bulamamaktaydı.
4949 sayılı kanunla İİK’na eklenen 179/a ve 179/b maddeleri ile erteleme talebi üzerine hâkim tarafından alınması gereken tedbirler ve erteleme kararının sonuçları düzenlenmiştir. Tezimizin asıl konusunu bu düzenlemeler oluşturmaktadır. İflasın ertelenmesi kurumunun yaygın olarak uygulanmaya başlaması bu konuların da önemini artırmıştır. Bu konudaki yasal düzenlemelerin yanında, birçok noktada doktrinel tartışmalar bulunmaktadır.
Çalışmamızda iflasın ertelenmesi talebi üzerine alınabilecek tedbirler ve erteleme kararının sonuçları konusundaki yasal düzenlemeler ve doktrinel tartışmalar ayrıntılı olarak incelenip değerlendirilmişti
Bracon (Orthobracon) persiangulfensis Ameri, Beyarslan & Talebi, sp. n.
No full textBracon (Orthobracon) persiangulfensis Ameri, Beyarslan & Talebi sp. n. (Figs 18 A–I) Material examined. Holotype: female — Iran, Hormozgan province, Queshm Island, Ramkan (26 ° 52 ′ 25.27 ″ N, 56 ° 01′ 07.33″ E, 34 m. a.s.l.), 16 -06- 2012, Leg.: A. Ameri. Paratypes: 10 ♀: same locality data as Holotype, 1 ♀, 18 -06-2012, 1♀, 28 -05-2012, 2♀, 08-06-2012, 1♀, 28 - 05-2012, 2♀, same locality data, 17 -05- 2012,, 1 ♀, 18 -07-2012, 1♀, Hormozgan province, Minab-Chelo (27 ° 10 ′ 30.39 ″ N, 57 ° 1 ′ 9.79 ″ E., 16 m. a.s.l.), 02-04-2012, 1♀, 20 -03-2012, 1♀, 02-04- 2012, Leg.: A. Ameri. Diagnosis. This new species is taxonomically nearest to Bracon (Ortobracon) epitriptus Marshall, 1885 from which it can be separated by the sculpture and color of propodeum (propodeum sculptured and brown in B. (O.) persiangulfensis sp. n., while it is smooth and black in B. (O.) epitriptus) and medial length of second tergite (1.9 times as long as medial length of third tergite in B. (O.) persiangulfensis sp. n. and equal to medial length of third tergite in B. (O.) epitriptus). Description. Female—Length of body 2.5 mm, antenna 2.75 mm, fore wing 2.65 mm, hind wing 1.75 mm, hind leg 2.9 mm, mesosoma 1.3 mm, metasoma 1.55 mm, ovipositor 0.87 mm. Head —wider than long in dorsal view (Figs 17 A, 17 B), ratios of width: length: height of head = 25: 13: 25. Antenna 30 - segmented (Fig. 17 C); first flagellomere 2.75 times as long as its width and 1.2 X as long as second flagellomere; all flagellomeres longer than their maximum width, penultimate flagellomere 1.75 X as long as its width; length of malar space 1.8 X as long as basal width of mandible and 0.47 X longitudinal diameter of eye; width of the hypoclypeal depression 0.4 X of longitudinal diameter of eye, 1.4 X longer than its transverse diameter, almost as long as length of malar space and 2.2 X as long as basal width of mandibles; ratios of height of clypeus: inter-tentorial distance: tenterio-ocular distance = 6: 14: 9; length of maxillary palp 0.34 X the height of head, width of face 1.6 X its height, punctate, glabrous, except for a few scattered white setae, ratios of longitudinal diameter of eye: width of face: width of head= 30: 31: 59; frons punctated, glabrous; vertex and gena smooth and glabrous; ratios of OOL:OD:POL = 14: 5: 5; temple smooth and glossy. Mesosoma (Figs 18 D, 18 E)—Approximately 1.6 X longer than height, mesonotum smooth and glabrous, propodeum smooth, basal half of notauli distinct, scutellar sulcus and scutellum smooth and glabrous, flange of metapleuron almost indistinct. Fore wing (Fig. 18 G)—Pterostigma triangular, length of pterostigma 2.8 X its maximum width, vein 1 -SR+M slightly curved, vein cu-a interstitial, ratio of r: 3 -SR:SR 1 = 9: 30: 51, CUlb short, 3 -CU 1 0.66 times as long as m-cu and 2 times as long as CU 1 b, ratios of 2 -SR:SR 1: 3 -SR:r-m: 2 -M: 2 -SR+M= 18: 30: 50: 12: 44: 3. Hind legs ( Fig. 18 F)— Hind coxa smooth and glossy, femur compressed, length ratios of femur: tibia: basitarsus: tarsus of hind leg = 44: 60: 27: 68, length of femur, tibia and basitarsus of hind leg 3.5, 8.5 and 5.6 X their maximum width, respectively; outer and inner hind tibial spurs 0.35 and 0.25 X as long as hind basitarsus, respectively; tibia and tarsus densely setose. Hind wing (Fig. 18 H)—Ratios of cu-a: 1 -M: 1 r-m: 2 -SC+R: SC+R 1: M+CU= 6: 55: 4: 5: 15: 15, apex of C+SC+R with 4 weakly thickened bristle. Metasoma (Fig. 18 I)—Length of first tergite 0.76 X its apical width, sculptured; spiracles on first metasomal tergite projecting; suture between 2 nd and 3 rd metasomal tergites deep and sinuate, medial length of second tergite 0.46 X as long as its apical width and 1.9 X as long as medial length of third tergite; first and second tergites strongly but third tergite weakly sculptured, all other tergites smooth and glabrous. Color. Yellowish brown, only eyes and ovipositor sheath black, antenna dark brown. Wing hyaline, pterostigma and veins dark brown. Male: Unknown. Host: Unknown. Body length 2.57–3.30 mm. Remark: The new species was frequently found in the Queshm island. Due to soil salinity in this area it is not densely vegetated. Vegetation consists of pasture plants, tropical and sub tropical fruit, herbaceous plants and grasslands, and vegetables. Etymology. The specific name is from the type locality Persian Gulf, in Ramkan Queshm Island.Published as part of Ameri, Ali, Talebi, Ali Asghar, Beyarslan, Ahmet, Kamali, Karim & Rakhshani, Ehsan, 2014, Study of the genus Bracon Fabricius, 1804 (Hymenoptera: Braconidae) of Southern Iran with description of a new species, pp. 353-380 in Zootaxa 3754 (4) on pages 372-375, DOI: 10.11646/zootaxa.3754.4.2, http://zenodo.org/record/28542
Enicospilus haladai Johansson & Ameri & Riedel & Talebi & Ebrahimi 2021, sp. nov.
No full text<i>Enicospilus haladai</i> Johansson sp. nov. <p>urn:lsid:zoobank.org:act: E66615A0-A12C-4237-B300-C591EB5FB37F</p> <p>Figs 5A–E</p> <p> <b>Holotype</b>: <b>IRAN</b>: ♀, Khorasan Province, 10 km W Raz, Koppe Dag, 37˚55"N, 56˚55"E, 27 May 2014, J. Halada leg. (OÖLM).</p> <p> <b>Paratypes</b>: <b>IRAN</b>: 2♂♂, 2♀♀, Khorasan Province, 10 km W Raz, Koppe Dag, 37˚55"N, 56˚55"E, 27 May 2014, J. Halada leg. (OÖLM); 1♀, Khorasan Province, Shomali-Ghuchan-Chakane, dga/ Pahne, 1780 m. a. s., 11–12 Jun. 2009, Mof. leg. (HMIM).</p> <p> <b>Type depositories</b>: The holotype and the paratypes are stored in their original depositories.</p> <p> <b>Etymology</b>: The name refers to the collector J. Halada.</p> <p> <b>Diagnosis</b>: <i>Enicospilus haladai</i> Johansson <b>sp. nov.</b> is similar to several species in the <i>E. adustus</i> aggregate. It is distinguished by the relatively few flagellomeres, the in anterior relatively wide face and the long malar space. Perhaps most similar to <i>Enicospilus bimaculator</i> Aubert, but with the face wider and fewer and stouter flagellomeres.</p> <p> <b>Description:</b> Fore wing length 13–14 mm. Body length 16–19 mm. Number of flagellomeres 46–49. Face wide in anterior view (Fig. 5D). Temples slightly buccate, in lateral view about 0.5 × the width of compound eye. Gap between lateral ocelli and inner margin of compound eye about 0.2 × the diameter of ocellus. Clypeus distinctly convex in lateral view. Mandible strongly twisted with upper tooth about three × as long as lower tooth (Fig. 2B). First flagellomere quite stout, about 3.5 × as long as apically wide. Mid- and preapical flagellomeres stout about 1.3–1.5 × as long as wide (Fig. 5C). Mesoscutum strongly polished with very small dense irregular punctures, the interstices between punctures about equal to their diameter. Mesopleuron densely punctate, almost rugulose with weak transverse striation. Epicnemial carina ventrally complete, almost straight between sternal suture and pleurosternal angles. Scutellum with lateral carinae, its surface covered with dense punctures. Proximal alar sclerite entirely pigmented, triangular. Central sclerite weakly pigmented, almost semi-ellipsoid in shape. Distal sclerite absent (Fig. 5E). Propodeum with transverse carina distinct, anterior of the carina polished with punctures, posterior to the carina irregularly reticulate-rugulose. Hind femur slender, about 8.0 × longer than wide. Hind tarsal claws pectinate with about 10 long teeth.</p> <p> <i>Colouration</i>: Mesosoma and metasoma uniformly testaceous. Head almost entirely yellow. Mandibular teeth black. Ovipositor sheath testaceous, concolourous with the metasomal segments. Forewing veins and pterostigma pale testaceous.</p> <p> <b>DNA Barcode</b>: The DNA barcode sequences of two specimens of <i>Enicospilus haladai</i> <b>sp. nov.</b> are available at the BOLD systems database: sample id. NJP650/651, sequence id. LNU2486-21/2487-21.</p>Published as part of <i>Johansson, Niklas, Ameri, Ali, Riedel, Matthias, Talebi, Ali Asghar & Ebrahimi, Ebrahim, 2021, Contribution to the Ophioninae (Hymenoptera: Ichneumonidae) of Iran with the description of 16 new species and an illustrated key to the Eremotylus of the Western Palaearctic, pp. 151-206 in Zootaxa 5023 (2)</i> on pages 160-161, DOI: 10.11646/zootaxa.5023.2.1, <a href="http://zenodo.org/record/5225655">http://zenodo.org/record/5225655</a>
Premicrodispus spinosus Hosseininaveh & Hajiqanbar & Talebi 2014, sp. nov.
No full textPremicrodispus spinosus Hosseininaveh & Hajiqanbar sp. nov. (Figures 6–10) Description Female. Length of idiosoma 152 (152–156), width 80 (74–88). Gnathosoma (Figure 8A,B). Gnathosomal capsule about twice as long as its width, dorsally with one pair of cheliceral setae ch 3 (3–3); ventrally with one pair of subcapitular seta su 5 (4–5); palps short, terminated to small tibial claw, and compressed to gnathosomal capsule, with two pairs of setae, dFe 3 (3–4) and dGe 4 (3–4), cheliceral stylets indiscernible; pharyngeal system (Figure 8C) with three pumps, pump 1 reduced, pump 2 the largest and striated, pump 3 small and rounded. Idiosomal dorsum (Figure 6). Stigmata oval-shaped and situated in anterior part of prodorsal shield; all dorsal setae smooth and pointed except setae d, f and h 1, which are blunt-ended; prodorsal shield with one pair of capitate trichobothria and one pair of setae sc 2 19 (18–19); all tergites smooth, tergite C with two pairs of setae c 1 11 (11–13) and c 2 15 (13–15), setae c 2 longer than c 1, posterior border of tergite C with distinct median depression; tergite D with seta d 9 (9–10) and one pair of rhombic cupuli ia, posterior border of tergite D with distinct median depression; tergite EF with two pairs of setae e 10 (10–11) related to one thin apodeme and f 10 (10–11); tergite H with two pairs of setae h 1 10 (10–11), h 2 11(11–12) and one pair of rhombic cupuli ih. Distances between dorsal idiosomal setae: sc 2 – sc 2 26 (25–26), c 1 – c 1 25 (25–26), c 2 – c 2 57 (50–60), c 1 – c 2 17 (17–20), d–d 24 (24–26), e–e 41 (41–44), e–f 5 (5–6), f–f 31 (31–35), h 1 – h 1 12 (11–13), h 1 – h 2 12 (11–12), h 2 – h 2 36 (36–39). Idiosomal venter (Figure 7). Ventral plates smooth; all ventral setae smooth and pointed; apodemes 1 and 2 reaching to appr, appr not reaching to apsej, apodemes 3 extending beyond bases of setae 3 a, apodemes 4 short and not reaching to bases of setae 3 b, apodemes 5 short; anterior border of poststernal plate convex and posterior border of poststernal plate tripartite; coxal field I with two pairs of setae 1 a 10 (9–10) and 1 b 10 (10–11); coxal field II with two pairs of setae 2 a 11 (11–12) and 2 b 14 (13– 15), 2 b longer than 2 a; coxal field III with three pairs of setae 3 a 10 (9–10), 3 b 7 (7–8) and 3 c 7 (7–10), 3 b and 3 c subequal and shorter than 3 a; coxal field IV with two pair of setae 4 b 8 (8–9) and 4 c 7 (7–8); pseudanal segment PS with three pairs of setae ps 1 11 (10–11), ps 2 6 (5–6) and ps 3 18 (16–18), ps 3 distinctly longer than ps 1 and ps 2. Legs. Leg chaetotaxy as in previous species. Leg I (Figure 9A). Tibiotarsus with solenidia ω 1 5 (4–5), ω 2 1 (1–2), φ 1 2 (1–2), and φ 2 4 (3–4), all finger shaped, ω 1 and φ 1 striated, with five eupathidial setae (p ″ , ft ′ , ft ″ , tc ′ , tc ″ ), setae tc ′ longest on leg I, setae pl ″ and pl ′ subequal, setae pv ′ longer than pv ″ , setae v ″ longer than v ′ , setae l ′ and l ″ subequal; genu with setae l ″ , l ′ , v ′ and v ″ , all subequal; femur with setae d and v ″ subequal and both longer than l ′ ; trochanter with seta v ′ . Leg II (Figure 9B). Tarsus with solenidion ω 3 (2–3) finger shaped, pl ″ modified and spine-like, the rest of setae of the segment subequal; tibia with a small finger-shaped solenidion φ 2 (1–2), setae l ′ modified and spine-like, setae d longer than v ′ and v ″ ; genu with setae, l ″ and v ′ subequal and longer than l ′ ; femur with setae d longer than l ′ and v ″ ; trochanter with seta v ′ . Leg III (Figure 10A). Tarsus with modified and spine-like setae pl ″ and tc ′ , setae tc ″ longest setae on the leg, setae pv ″ and pv ′ subequal and shorter than u ′ ; tibia with a small solenidion φ 2 (1–2) and setae d modified and spine-like, seta v ″ and v ′ subequal and longer than l ′ ; genu with setae l ′ and v ′ subequal; femur divided into basifemur and telofemur, setae d and l ′ inserted on telofemur, setae d longer than l ′ ; trochanter with seta v ′ . Leg IV (Figure 10B). Tarsus with subequal setae pl ″ , pv ′ and pv ″ , setae u ′ and tc ″ subequal, seta tc ′ longest on the segment; tibia with small solenidion φ 1 (1–1), seta d and v ′ subequal and longer than l ′ and v ″ ; genu with seta v ′ as long as femoral seta v ′ ; femur divided into basifemur and telofemur, setae d and v ′ inserted on telofemur, seta d longer than v ′ ; trochanter with seta v ′ . Male and larva unknown. Differential diagnosis The new species is readily distinguished from other species of the genus by some spine-like setae on tarsi and tibiae II and III. Other species of the genus Premicrodispus have unmodified setae on these segments. Disregarding this character, the new species is similar to Premicrodispus tenuisetus Khaustov, 2006 but differs from it by setae d blunt and not extending to posterior border of tergite D (seta d pointed and extending to posterior border of tergite D in P. tenuisetus) and setae f and h 1 blunt (setae f and h 1 pointed in P. tenuisetus). Type material Five females found in a vial containing the beetle Corticeus unicolor (Col: Tenebrionidae) in 75% ethanol. The host beetle was collected from oak trees in Naharkhoran forest, Golestan province, northern Iran, 36.46° N, 54.27° E, and altitude 450 m., coll. V. Rahiminejad, 30 July 2010. Etymology The species epithet refers to some spine-like setae on tarsi and tibiae II and III. Key to subgenera and Palaearctic species of the genus Premicrodispus (females) (modified from Khaustov 2006) 1. Genu I with four setae, genu II with three setae............................................... 2 - Genu I with three setae, genu II with one seta.................................................................... subgenus Premicrodispulus, P. reductus Khaustov and Chydyrov, 2010 2. Coxal fields I with two pairs of setae, pharyngeal pump 2 much longer than pharyngeal pump 3..................................................... subgenus Premicrodispus 3 - Coxal fields I with one pair of setae, pharyngeal pump 2 distinctly shorter than pharyngeal pump 3.............................................................................................................. subgenus Premicrodispoides, P. punctatus Khaustov and Maslov, 2013 3. Setae 4 a present................................................................................................. 4 - Setae 4 a absent.................................................................................................. 8 4. Setae ps 2 present....................................................... P. stenops (Mahunka, 1969) - Setae ps 2 absent................................................................................................. 5 5. Bases of setae f associated with well-developed apodeme..................................... ................................................................................. P. lineatus (Mahunka, 1986) - Apodemes associated with bases of setae f absent............................................. 6 6. Setae ps 1 distinctly longer than ps 3............................................................................................................... P. dzumaevi (Sevastianov and Chydyrov, 1991) - Setae ps 1 and ps 3 subequal in length.................................................................. 7 7. Setae d distinctly longer than distance between their bases, bases of setae e without apodemes.............................................................. P. paramaevi sp. nov. - Setae d distinctly shorter than distance between their bases, bases of setae e with apodemes................................................................ P. parasilvestris (Rack, 1974) 8. Setae ps 2 present................................................................................................ 9 - Setae ps 2 absent............................................................................................... 12 9. Setae h 2 distinctly shorter than h 1............................................................................................................... P. akermanae (Sevastianov and Zahida Al Douri, 1988) - Setae h 2 subequal or longer than h 1................................................................. 10 10. Setae h 1 much shorter than h 2, pseudanal setae distinctly shorter than setae of posterior sternal plate.................................................................................................................... P. subvarsoviensis (Mahunka and Zyromska-Rudska, 1975) - Setae h 1 and h 2 subequal, pseudanal setae and setae of posterior sternal plate subequal........................................................................................................... 11 11. Setae h 1, d and f blunt-ended, tarsi and tibiae II and III with spine-like setae..................................................................................................... P. spinosus sp. nov. - Setae h 1, d and f pointed, tarsus and tibia III with setiform setae …................................................................................................... P. tenuisetus Khaustov, 2006 12. Setae sc 2 and d subequal.................................................................................. 13 - Setae sc 2 distinctly longer than d..................................................................... 16 13. Tergites C and D with distinct emarginations in central part............................................................................................ P. incisus Khaustov and Chydyrov, 2010 - Tergites C and D without distinct emarginations in central part.................... 14 14. Setae ps 1 and ps 3 subequal in length................................................................ 15 - Setae ps 3 distinctly longer than ps 1....................................................................................................................... P. heterocaudatus Khaustov and Chydyrov, 2010 15. Setae f short and distinctly not reaching to posterior margin of the body........................................................................................... P. acutisetus Khaustov, 2009 - Setae f long and protruding the posterior margin of the body........................................................................................................ P. longisetosus (Mahunka, 1970) 16. Setae ps 3 distinctly longer than ps 1.................................................................. 17 - Setae ps 1 and ps 3 subequal in length................................................................ 18 17. Tarsus III with well-developed solenidion................................................................................................................... P. paradoxus Khaustov and Chydyrov, 2010 - Tarsus III without well-developed solenidion...... P. longicaudus Khaustov, 2006 18. Anterior margin of posterior sternal plate distinctly convex............................ 19 - Anterior margin of posterior sternal plate straight................................................................................................................... P. kaliszewskii Khaustov, 2006 19. Bases of setae e associated with well-developed apodemes.............................. 20 - Apodemes associated with bases of setae e absent or vestigial........................ 21 20. Setae sc 2 and c 1 subequal, setae c 2 and c 1 situated almost at the same level............................................................................................. P. rackae Khaustov, 2006 - Setae sc 2 distinctly longer than c 1, setae c 2 situated distinctly anterior to c 1........................................................................................ P. brevisetus Khaustov, 2006 21. Setae e shorter than setae f.............................................................................. 22 - Setae e longer than setae f.......................................... P. krczali Khaustov, 2006 22. Setae c 1 and e blunt ended.......... P. obtusisetosus Khaustov and Chydyrov, 2010 - Setae c 1 and e pointed..................................................................................... 23 23. All dorsal setae long and barbed....................... P. karadagensis Khaustov, 2009 - Dorsal setae short and usually smooth.................... P. montanus Khaustov, 2006Published as part of Hosseininaveh, Farahnaz, Hajiqanbar, Hamidreza & Talebi, Ali Asghar, 2014, Two new species of the genus Premicrodispus (Acari: Microdispidae) associated with beetles (Coleoptera: Lucanidae: Tenebrionidae), with a key to Palaearctic species of the genus, pp. 915-931 in Journal of Natural History 49 (15) on pages 922-930, DOI: 10.1080/00222933.2014.953225, http://zenodo.org/record/400469
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