Phaenocarpa lobata Sohn & van Achterberg, 2021

Sohn, Ju-Hyeong, van Achterberg, Cornelis, Lee, Gyeonghyeon & Kim, Hyojoong, 2021, Three new species and two new records of the genus Phaenocarpa Foerster (Hymenoptera, Braconidae, Alysiinae) from South Korea, Journal of Hymenoptera Research 86, pp. 1-17 : 1

Phaenocarpa lobata Sohn & van Achterberg sp. nov.

Figure 3A-L

Type material.

Holotype, ♀ (KNA), South Korea, DMZ Botanical Garden, Mandae-ri, Haean-myeon, Yanggu-gun, Gangwon-do, 38°15'09.3"N, 128°06'40.6"E, 19.IX-10.X.2017, Shin, Kim. GenBank accession no. MZ318085 for the barcoding sequence of the COI region.

Comparative diagnosis.

Differs from other species treated in this paper by the long pterostigma of the fore wing (approx. 5.5 times as long as wide; 2.9-4.4 times in other species). The orange antenna and the yellow and robust third and fourth antennal segments distinguish it from other Phaenocarpa species. Closely related to P. masha Belokobylskij, 1998, for differences see key above.

Description.

Holotype, ♀; length of body in lateral view 3.3 mm (Fig. 3A ), length of antenna 6.1 mm and length of fore wing 3.6 mm.

Colour. Head (Fig. 3D ) black; antenna orange (third and fourth antennal segments yellow); mandible orange brown. First tergite dark brown and mesonotum entirely reddish brown, area around of medio-posterior depression orangish brown.

Head. Width 1.9 times median length in dorsal view. Antenna (Fig. 3B ) twice as long as body, 39 segmented. Fourth segment 1.5 times longer than third segment and 1.3 times longer than fifth; third and fourth segments robust. Eye slightly oval, 1.3 times as long as wide in lateral view. Width of face (Fig. 3E ) 1.6 times its height from ventral rim of antennal sockets to upper margin of clypeus. Eye in dorsal view 2.6 times as long as temple. Ocello-ocular line 4.1 times longer than diameter of anterior ocellus; OOL:AOL:POL = 25:6:9. Stemmaticum concave. Vertex smooth, glossy. Mandible with three teeth and first tooth separated from second tooth by incision (Fig. 3L ); middle tooth of mandible widened dorsally, with black tip. Labrum 2.0 times longer than wide. Maxillary palp 0.8 times longer than mesosoma.

Mesosoma. Mesosoma (Fig. 3G ) 1.8 times longer than wide in dorsal view. Notauli comparatively coarsely crenulate near middle of mesoscutum and reaching medio-posterior depression; medio-posterior depression nearly reaching transscutal articulation; scutellar sulcus with two carinae; metanotum obtuse dorsally in lateral view; small bump on hind coxa adjacent to metapleuron; in lateral view metapleuron with distinct setae. Anterior half of propodeum less sloping; propodeum bent in lateral view; precoxal sulcus (Fig. 3F ) deep and distinct, with about eight crenulae. Fore wing (Fig. 3C ) 2.4 times as long as wide; pterostigma long and narrow, 5.5 times longer than wide; vein r of fore wing 1.5 times longer than wide; vein 2-SR slightly bent; vein r-m not sclerotized; vein 2-SR:vein r:vein 3-SR = 11:2:16; first subdiscal cell of fore wing ca 0.9 times longer than wide.

Leg. Hind coxa compressed, grooved and 1.2 times longer than hind trochanter; hind femur 0.6 times longer than hind tibia; hind tibia 1.2 times longer than hind tarsus; tarsal claws robust.

Metasoma. First tergite very robust, 1.2 times longer than its apical width; T1:T2 = 44:54. Setose part of ovipositor sheath (Fig. 3I ) 1.2 times longer than mesosoma, as long as hind tibia and with long setae (Fig. 3I ).

Male. Unknown.

Distribution.

South Korea.

Etymology.

From “lobus” (Latin for lobe), because of the lobe-shaped third mandibular tooth.

Figures

Figure 3. Phaenocarpa lobata sp. nov., ♀ A body B antennae C wings D head, dorsal E head, anterior F mesosoma, lateral G mesosoma, dorsal H propodeum and metasoma, dorsal I ovipositor and its sheaths, lateral J tarsus, lateral K tarsus, dorsal L mandible, lateral.