Ephedrus carinatus Tomanovic, 2020
Tomanovic, Zeljko, Petrovic, Andjeljko, Kocic, Korana, Ckrkic, Jelisaveta & Zikic, Vladimir, 2020, Two new morphologically interesting species of the genus Ephedrus Haliday (Hymenoptera, Braconidae, Aphidiinae), Journal of Hymenoptera Research 77, pp. 167-174 : 167
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|Ephedrus carinatus Tomanovic|
Ephedrus carinatus Tomanovic sp. nov.
On the basis of fore wing venation (3SR vein longer than 2SR vein) (Fig. 2F View Figure 2 ), this species belongs to the plagiator species group. The new species morphologically resembles E. validus in possessing a reticulated petiole (Fig. 2G View Figure 2 ) and propodeum (Fig. 2E View Figure 2 ) and a densely setose ovipositor sheath (Fig. 2H View Figure 2 ), features that point to a subterranean habitat where it probably parasitizes root aphids. However, it differs clearly from E. validus in having wide and rugose notaulices along the dorsal side of the mesoscutum (Fig. 2D View Figure 2 ) (vs. shorter notaulices reaching the first third of the mesoscutum in E. validus (Fig. 3A View Figure 3 )), second flagellomere approximately 3.2 times as long as wide (Fig. 2C View Figure 2 ) (vs. 2.7-2.8 times as long as wide in E. validus (Fig. 3B View Figure 3 )) and a petiole approximately 1.35 times as long as wide at the spiracle level (Fig. 2G View Figure 2 ) (vs. a more elongated petiole, 1.4-1.6 times as long as wide at the spiracle level in E. validus (Fig. 3C View Figure 3 )).
Head. Malar space equal to approximately 0.32 of longitudinal eye diameter. Clypeus oval, densely setose with over 20 long setae. Tentorial index approximately 0.48. Maxillary palps with four palpomeres, labial palps with two. Head approximately 1.3 times wider than mesoscutum (Fig. 2A View Figure 2 ). Antennae 11-segmented, filiform, slightly tickened towards apex, with semierect setae which are shorter than half of diameter of the segments (Fig. 2B View Figure 2 ). F1 elongated, with a constriction in the first half, approximately 5.8 times as long as wide and approximately 1.8 times longer than F2 (Fig. 2C View Figure 2 ). F2 approximately 3.2 times as long as wide. F1 and F2 with two or three longitudinal placodes (Fig. 2C View Figure 2 ), F3 and F4 with four longitudinal placodes. F8 and F9 well separated.
Mesosoma. Mesoscutum with notaulices almost reaching the scutellum (Fig. 2D View Figure 2 ). Mesoscutal fovea absent. Propodeum very rugose, areolated and densely setose (Fig. 2E View Figure 2 ), with more than 15 and 20 setae on the upper areola and lower areola, respectively (Fig. 2E View Figure 2 ). Central areola wide and pentagonal.
Metasoma. Petiole subquadrate, approximately 1.35 times as long as wide at the spiracle level (Fig. 2G View Figure 2 ). Ovipositor sheaths elongated, densely setose and straight on the dorsal margin (Fig. 2H View Figure 2 ).
Colouration. Head black. Scape and pedicel yellow to light-brown. F1 yellow, remaining part of antennae brown. Mouthparts light-brown. Petiole light-brown to brown. Legs light-brown with dark apices. Metasoma brown. Remaining body parts brown to black.
Body length. 2.0 mm.
Holotype: 1 ♀, Austria, Oberösterreich, Lichtenberg, 01 IX 1933., collected by sweeping, leg. J. Kloiber. Deposited in the collection of the Biologiezentrum Linz´s collection, Austria.
Distribution and biology.
Ephedrus carinatus sp. nov. is known only from a historical record from Austria. We assume that it is a parasitoid of root aphid species.
The new species takes its name from the developed notaulices on the mesoscutum.
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