Acmopolynema pseudotachikawai Manickavasagam & Palanivel, 2017
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publication ID |
https://doi.org/ 10.1080/00222933.2017.1356391 |
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publication LSID |
lsid:zoobank.org:pub:3098457A-CA39-49CD-AEF1-19E788C33B78 |
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persistent identifier |
https://treatment.plazi.org/id/30671BDC-4449-43A3-A459-E97FBA74FA5F |
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taxon LSID |
lsid:zoobank.org:act:30671BDC-4449-43A3-A459-E97FBA74FA5F |
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treatment provided by |
Felipe |
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scientific name |
Acmopolynema pseudotachikawai Manickavasagam & Palanivel |
| status |
sp. nov. |
Acmopolynema pseudotachikawai Manickavasagam & Palanivel , sp. nov.
( Figures 4–6 View Figure 4 View Figure 5 View Figure 6 )
Type material
Holotype, ♀, ( EDAU; registration No. Mym /23/2017) on slide under four coverslips, labelled ‘ INDIA: Tamil Nadu, Salem, Yercaud, Grass, 24.viii.13. (SN), Coll. S. Palanivel & Sunilkumar’.
Diagnosis
In Triapitsyn and Berezovskiy (2007), this new species tentatively keys to A. tachikawai Taguchi. A modified couplet 1 for the key of Triapitsyn and Berezovskiy (2007, p. 8) is provided here to differentiate them.
1 Fore wing disc with distinct apical dark band extending to wing apex ( Figures 4 View Figure 4 (a), 5 (a), 8) .......................................................................................................................................................... 1 ʹ
– Fore wing disc either hyaline or with different colour patterns; if apical dark band present, then it does not extend to wing apex ...................................................................... 2
1 ʹ (1) F6 brown ( Figure 8 View Figure 8 ); propodeum with incomplete median groove, extending from anterior margin of propodeum to about its middle (fig. 2 of Triapitsyn and Berezovskiy 2007, p. 10); fore wing with apical band about 0.18× wing length; hind wing 31–32× as long as wide ................................................................ A. tachikawai Taguchi View in CoL
– F6 yellowish ( Figure 4 View Figure 4 (c)); propodeum without median groove ( Figure 6 View Figure 6 (a)); fore wing with apical band about 0.3× wing length; hind wing about 47× as long as wide ................. ................. A. pseudotachikawai Manickavasagam & Palanivel , sp. nov.
Female
Head below transverse trabecula and compound eyes yellow, above transverse trabecula yellowish-brown, especially around ocelli. Scape, pedicel, F1, F4–F6 yellow, F2 and F3 light to dark brown, clava dark brown to black. Mesosoma yellowish, laterally slightly darker than dorsally, petiole white. Procoxa and protrochanter white, remainder of fore leg gradually becoming yellowish towards apex of tarsi, with claw brown; mesotibia basally white, apically yellowish and medially dark brown; meso- and metatarsi yellowish; apical one-third of metafemur and apical three-quarters of metatibia dark brown and its remainder whitish. Gaster yellow with a brown band in the middle, ovipositor black ( Figure 4 View Figure 4 (a)).
Head about 0.9× as long as wide ( Figure 4 View Figure 4 (b)). Torulus less than one torular diameter from transverse trabecula. Vertex, scape, pronotum and metacoxa with short, blunt setae.
Antenna. Scape ( Figure 4 View Figure 4 (c)) with cross-ridges on inner surface, 2.2× as long as wide; pedicel 0.7× as long as F1; F2 the longest funicle segment, 1.1× as long as F3; F4−F6 length slightly progressively increasing (50: 55: 60); all funicle segments without mps; clava 2.0× as long as wide, with eight mps.
Mesosoma ( Figure 6 View Figure 6 (a)) 2.1× as long as wide; pronotum entire, 0.8× as long as mesoscutum. Mesoscutum smooth, 1.6× as long as scutellum. Axilla with three or four foveae, scutellum with two foveae ( Figure 6 View Figure 6 (b), indicated by arrows). Propodeum with one pair of long setae; submedian carinae extending to about one-half length of propodeum.
Fore wing ( Figure 5 View Figure 5 (a)) 3.2× as long as wide; parastigma with two short dorsal macrochaetae; longest marginal seta 0.3× maximum wing width; disc with three brown bands: the smaller, basal band just behind apex of venation, a larger band in the middle, and the largest, apical band (about 0.3× total wing length) reaching wing’ s apex. Hind wing ( Figure 5 View Figure 5 (b)) 47.4× as long as wide, longest marginal seta 5.2× maximum wing width, disc slightly infumate apically.
Metacoxa and metafemur reticulate. Protibia with two rows of 15 conical sensilla.
Petiole 1.1× as long as metacoxa. Ovipositor ( Figure 6 View Figure 6 (c)) about 1.1× as long as gaster, exserted beyond gastral apex by 0.17× total ovipositor length, 1.3× as long as metatibia.
Measurements in µm (holotype, as length or length: width): Head, 260: 290. Antenna: scape (minus radicle), 100: 45; pedicel, 63: 40; F1, 88: 18; F2, 125: 18; F3, 115: 20; F4, 50: 25; F5, 55: 28, F6, 60: 30; clava, 195: 95. Fore wing, 1425: 440; longest marginal seta, 158; hind wing, 1185: 25; longest marginal seta, 130. Mesosoma, 518: 245; pronotum, 163: 180; mesoscutum, 195: 213; scutellum, 118: 145; petiole, 213: 50; metanotum, 38: 150; propodeum, 138: 240; gaster, 605: 260; ovipositor, 680: 125. Legs (given as coxa, femur, tibia, tarsus): pro: 143, 313, 283, 313; meso: 130, 288, 393, 381; meta: 195, 363, 508, 426.
Male
Unknown.
Etymology
This is the second species of Acmopolynema (besides A. tachikawai Taguchi ) with known females in which the fore wing apical dark band reaches the wing apex, hence the name ‘ pseudotachikawai ’. It is also possible that an unknown female of Acmopolynema philippinense Soyka from the Philippines might have such an apical band, as a strong sexual dimorphism in some Oriental species of this genus often includes fore wing colour patterns.
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