Cratospila longivena Sohn & van Achterberg, 2022

Sohn, Ju-Hyeong, van Achterberg, Cornelis, Yu, Yeonghyeok & Kim, Hyojoong, 2022, Additions to the genus Cratospila Foerster (Hymenoptera, Braconidae, Alysiinae) from South Korea, Journal of Hymenoptera Research 92, pp. 173-184 : 173

Cratospila longivena Sohn & van Achterberg sp. nov.

Fig. 2A-I

Type material.

Holotype, ♀ (NIBR), South Korea, Unilam Banilam, Jucheon-myeon, Jinan-gun, Jeollabuk-do, 35°58'49"N, 127°23'49.2"E, 17-24.Ⅷ.2019, Sohn. GenBank accession no. ON504322.

Comparative diagnosis.

Differ from other South Korean species of Cratospila by having the first tergite very long (3.5 times longer than its apical width; 2.5-2.9 times in other species). Unfortunately, some apical segments of antenna are missing, but COI analysis apparently showed that it is genetically close to C. syntoma .

Description.

Holotype, ♀, length of body in lateral view 2.9 mm, and of fore wing 2.8 mm.

Colour: Body (Fig. 2A ) black, head dorsally blackish brown, remainder of head, first tergite and mesonotum entirely reddish brown; antenna yellowish brown basally, medially dark brown (apical part of antenna missing, but according to notes made in Netherlands with at least 7 white segments).

Head (Fig. 2D ): Width of head 1.5 times its median length in dorsal view. First flagellomere 1.6 times longer than second and 7.3 times longer than wide; most of antenna lost during transport from Netherlands to Korea. Compounded eye slightly oval and glossy, in lateral view 1.2 times as long as wide. Width of face (Fig. 2E ) 1.1 times its height (measured from ventral rim of antennal sockets to upper margin of clypeus). Face with long setae and glabrous. Eye in dorsal view 2.8 times as long as temple. Ocello-ocular line (OOL) 3.6 times longer than diameter of anterior ocellus; OOL: antero-posterior ocellar line (AOL): postero-ocellar line (POL) = 32: 8: 13. Stemmaticum concave and with setae. Mandible entirely pale orange, with three teeth, second tooth narrow and sharp with dark brown tip, and separated from first tooth and third tooth. Third tooth with carina in ventral view. Medial length of mandible 1.6 times its maximum width. Labrum 0.7 times longer than maximum width. Maxillary palp 0.8 times longer than mesosoma.

Mesosoma: Mesosoma 2.0 times longer than its maximum width in dorsal view and 1.4 times its height in lateral view. Mesoscutum (Fig. 2G ) with medio-posterior depression; notauli chain-shaped, nearly complete but not reaching medio-posterior depression; scutellar sulcus with six distinct carinae; in lateral view mesopleuron smooth and glossy, apical parts with setae; metapleuron smooth with setae; metanotum sculptured; small basal bump on hind coxa. Propodeum (Fig. 2H ) 0.6 times longer than wide, anterior half of propodeum smooth, posterior of median carina strongly wrinkled; precoxal sulcus (Fig. 2F ) deep and distinct, with about eight carinae, propodeum curved in lateral view. Fore wing (Fig. 2C ) 2.4 times as long as wide; pterostigma long and narrow, 3.2 times longer than wide; vein r of fore wing 3.5 times longer than wide; vein 2-SR slightly bent; vein 2-SR+M and r-m not sclerotized; 2-SR: r: 3-SR = 11: 2: 7; first subdiscal cell of fore wing approx. 5 times longer than wide. Hind wing M+CU: 1-M = 22: 4.

Leg: Hind coxa compressed and grooved; hind coxa 1.2 times longer than hind trochanter; hind femur 5.5 times longer than wide and 0.7 times longer than hind tibia; hind tibia as long as hind tarsus.

Metasoma: First tergite striate and narrow, 3.5 times longer than apical width, T1:T2= 5:3. Setose part of ovipositor sheath (Fig. 2I ) 0.5 times as long as mesosoma, 0.5 times as long as hind tibia and with long setae.

Male. Unknown.

Distribution.

South Korea.

Etymology.

Named after the comparatively long vein r of the fore wing: " longi " is derived from " longus " (Latin for long) and " vena " is Latin for vein.

Figures

Figure 2. (A-I) Cratospila longivena sp. nov. ♀ A habitus, lateral view B antennae C wings D head, dorsal view E head, front view F mesosoma, dorsal view G mesosoma, lateral view H anterior half of metasoma, dorsal view I ovipositor sheath, lateral view.