Aphidius stigmaticus Rakhshani and Tomanović, 2011
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publication ID |
https://doi.org/ 10.1080/00222933.2011.597004 |
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DOI |
https://doi.org/10.5281/zenodo.10537013 |
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persistent identifier |
https://treatment.plazi.org/id/039B87C4-2B62-FF92-985F-FE6B4129FA37 |
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treatment provided by |
Felipe |
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scientific name |
Aphidius stigmaticus Rakhshani and Tomanović |
| status |
sp. nov. |
Aphidius stigmaticus Rakhshani and Tomanović sp. nov.
( Figure 6 View Figure 6 )
Diagnosis
On the basis of the host range, morphological characters and colour pattern, A. stigmaticus sp. nov. is closely related to A. absinthii Marshall , from which it differs in having a wider triangular stigma ( A. stigmaticus sp. nov. has a stigma length / width ratio of 2.62–2.70 vs 3.00– 3.50 in A. absinthii ) and longer F1 ( A. stigmaticus sp. nov. has an F1 length / width ratio of 4.06–4.33 vs 3.50–3.90 in A. absinthii ). A. stigmaticus sp. nov. has the M&m-cu vein sharply curved toward the lower margin of the wing, while the M&m-cu vein is gradually curved down in A. absinthii . Generally, A. stigmaticus sp. nov. differs from all other congeneric species in having a very widely triangular stigma ( Figure 6E View Figure 6 ). All other species of the genus Aphidius have a more elongate and slender stigma ( A. stigmaticus sp. nov. has a stigma length / width ratio of 2.62–2.70 vs 2.80–5.50 in all other Aphidius species (Starý 1973; Tomanović et al. 2003c; Rakhshani et al. 2008).
Etymology
The name of the new species is derived from the widely triangular fore wing stigma.
Description
Female. Head. Eyes oval, sparsely setose ( Figure 6A View Figure 6 ). Malar space equal to 0.28– 0.31 times the longitudinal eye diameter. Clypeus oval, with 10–(11) long setae ( Figure 6A View Figure 6 ). Tentorial index (tentoriocular line / intertentorial line) 0.46–0.50. Antenna (16)–17-segmented, filiform, moderately thickened at apex with semi-erect setae which are shorter than the diameter of the segments ( Figure 6B View Figure 6 ). First flagellomere (F1) ( Figure 6C View Figure 6 ) 4.06–4.33 times as long as median width, without longitudinal placodes. Second flagellomere (F2) ( Figure 6C View Figure 6 ) is 3.43–3.87 times as long as median width, with 0–1 longitudinal placode. F1 equally long as F2 ( Figure 6C View Figure 6 ). Maxillary palpus with four palpomeres (if one palpus has three palpomeres, another one bearing the trace of fourth palpomere), labial palps with two palpomeres. Mandibles bidentate, bearing sparse long setae at outer margin ( Figure 6A View Figure 6 ).
Mesosoma . Mesonotum with notaulices distinct in the fore part, slightly crenulated, with two or three rows of setae. Notaulices effaced on the mesoscutum ( Figure 6D View Figure 6 ).
Propodeum ( Figure 6F View Figure 6 ) areolated with narrow central pentagonal areola. Upper lateral area with 3–4 setae and lower lateral area each with 4–5 setae.
Fore wing. Stigma triangular, 2.62–2.70 times as long as wide and 1.30–1.50 times as long as R1 vein ( Figure 6E View Figure 6 ); R1 vein is 1.60–1.70 times longer than stigma width. r vein 1.40–1.45 times as long as RS and 0.75–0.80 times as long as R1 vein. Lowest margin with long setae, reducing in size at left side of it.
Metasoma. Petiole short, 2.50–2.92 times as long as wide at spiracles ( Figure 6G View Figure 6 ), with moderately prominent mediodorsal carina, with 8–10 costulae on its anterolateral area ( Figure 6H View Figure 6 ). Ovipositor sheath long, concave in its dorsal margin ( Figure 6I View Figure 6 ). Length of ovipositor sheath 1.90–2.10 times as long as its maximum width at base and 3.10–3.20 times as long as its minimum width at tip.
Colour. Body generally orange. Mouthparts yellow except black tip of mandible. Eyes and ocelli black. Remaining parts of head yellow. Scape with yellow dorsal part and brown ventral part. Pedicel light brown. F1 with narrow yellow ring at the base, remaining part of antenna dark brown. Legs yellow with dark apices. Fourth metasomal segment dark brown, the remaining segments yellow. Ovipositor sheath dark brown. Mummified aphids ( Figure 7 View Figure 7 ) whitish.
Body length. 2.0– 2.3 mm.
Male. Antenna 18–19-segmented. First flagellomere with 4–6 longitudinal placodes. Petiole about 2.5 times as long as wide at spiracles level. Body generally darker than female, with brown legs and mouthparts.
Material
Holotype female. Iran, Hamadan, Gallebar, 34 ◦ 45 ′ N; 48 ◦ 10 ′ E, 2300 m a.s.l., 8 June 2006, reared from Macrosiphoniella tanacetaria Kaltenbach on Tanacetum polycephalum ( Figure 7 View Figure 7 ), coll. N. Rajabi. Holotype slide mounted and deposited in the collection of the Institute of Zoology, Faculty of Biology, University of Belgrade.
Paratypes. The same collection data as holotype. Two male paratypes slide-mounted and four male paratypes dry-mounted were deposited in the collection of the Institute of Zoology, Faculty of Biology, University of Belgrade. Two females and two males are slide-mounted and deposited in the collection of E. Rakhshani ( Department of Plant Protection , College of Agriculture , University of Zabol ) .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.