Trioxys depressus Petrovic & Tomanovic, 2021
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publication ID |
https://dx.doi.org/10.3897/jhr.82.64968 |
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publication LSID |
lsid:zoobank.org:pub:2BE87C73-B6C9-4235-93FB-30714F9F1E34 |
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persistent identifier |
https://treatment.plazi.org/id/C1E522A0-BEA2-44E1-A237-3F9C3751FB77 |
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taxon LSID |
lsid:zoobank.org:act:C1E522A0-BEA2-44E1-A237-3F9C3751FB77 |
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treatment provided by |
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scientific name |
Trioxys depressus Petrovic & Tomanovic |
| status |
sp. nov. |
Trioxys depressus Petrovic & Tomanovic sp. nov.
Fig. 1 View Figure 1
Diagnosis.
Trioxys depressus sp. nov. can easily be separated from all congeners by the set of unique characters: propodeum with prominent medial depression along the whole length (Fig. 1E View Figure 1 ), specific antennae which are in-between filiform and clavate with 10 antennomeres, and very elongated terminal flagellomere (F8) (Fig. 1B View Figure 1 ), maxillary palps with 3 palpomeres, and labial palps with 2 palpomeres.
Type material.
Holotype: 1 ♀. Kyrgyz Republic, Alai Mts. 50 km A. Galtska, 7.VI 2000, leg. V. Gurko, slide mounted. Paratype: same data as holotype, 1 ♀, slide mounted. Holotype deposited at Biologiezentrum Linz´s collection, Austria; paratype deposited at the Institute of Zoology, Faculty of Biology, University of Belgrade.
Type locality.
Kyrgyz Republic, Alay Range. A more precise locality cannot be determined with certainty from the label. We could not find the locality A. Galtska in Kyrgyzstan, and it might be that “Galtska” is a misspelling of “Gulcha”, which is the capital of the Alay district located 50 km North of the Alay Range.
Description.
Female. Head (Fig. 1A View Figure 1 ). Eyes oval, medium sized, sparsely setose. Tentorial index 0.3-0.45. Clypeus oval with 13 setae. Maxillary palps with 3 palpomeres, labial palps with 2 palpomeres. Antennae in-between filiform and clavate with 10 antennomeres. Setae on flagellomeres semierect, subequal to flagellomere diameter (Fig. 1B View Figure 1 ). Flagellomere 1 (F1) 2.9 times as long as wide, F2 2.1 times as long as wide. Both flagellomeres without longitudinal placodes (Fig. 1C View Figure 1 ). F1 1.25 times longer than F2. Flagellomeres F3, F4 and F5 with 2, 2 and 3 longitudinal placodes, respectively. Terminal flagellomere (F8) very elongated, 3.3 times as long as wide, and 2-2.5 times longer than any other flagellomere (Fig. 1B View Figure 1 ). F8 with 10 longitudinal placodes.
Mesosoma. Mesoscutum without notaulices, dorsal surface smooth with sparse setae (Fig. 1D View Figure 1 ). Head width/mesoscutum width ratio 1.1. Propodeum with prominent medial depression along its whole length (Fig. 1E View Figure 1 ). Medial depression, which divides the propodeum into halves, is a unique character among Aphidiinae . It is narrow in the middle and widens anteriorly and posteriorly. Upper halves of propodeum both with 4-5 long setae close to medial depression and with 1 seta more laterally. Lower halves with 1 long seta.
Fore wing (Fig. 1H View Figure 1 ). Wing length 1.3-1.4 mm, width 0.6 mm. Pterostigma triangular, 2.6-2.8 times as long as wide and 1.7-1.9 times as long as distal abscissa of R1. Wing venation reduced, fused r and RS (r&RS) visible, reaching distally as far as R1 or shorter. Fore wing densely pubescent, with lower marginal setae longer than those on the fore wing surface.
Metasoma. Petiole 2.2-2.3 times as long as wide at spiracles (Fig. 1F View Figure 1 ). Dorsal disc smooth, with 2-3 long setae on each side (Fig. 1F View Figure 1 ). Ovipositor sheath slightly curved downwards, length/width ratio 2.5-2.7. Prongs straight, length 0.2 mm, with 3 dorsal hairs and one claw-like apical bristle (Fig. 1G View Figure 1 ).
Colour. Head brown, eyes brown, mouthparts yellow. Scapus, pedicel, F1 and F2 yellow, remainder of antenna brown. Mesonotum and propodeum brown, legs light brown. Wings hyaline, with brown venation. Petiole and rest of metasoma, including ovipositor sheaths, light brown.
Male. Unknown
Etymology.
The name of the new species refers to the medial depression on the propodeum.
Host aphid.
unknown
Distribution.
Kyrgyz Republic, Alay Range.
Trioxys sp.
2 ♀, Ala-Archa river Kashka-Suu (alt. 1650 m), VII 2000, leg. V. Gurko.
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