Cratospila ejuncida Sohn & van Achterberg, 2021

Sohn, JuHyeong, Achterberg *, Cornelis van, Han, Yun Jong & Kim, Hyojoong, 2021, Four new species of the genus Cratospila Foerster (Hymenopter, Braconidae, Alysiinae) from South Korea, ZooKeys 1022, pp. 51-64 : 51

Cratospila ejuncida Sohn & van Achterberg sp. nov. Figure 2

Type material.

Holotype, ♀ ( NIBR), South Korea, Inje-Gun , Bukmyeon, Hangyeri, 38°08'46.5"N, 128°15'47.5"E, 9-16. IX. 2017 (Malaise trap), J.H. Sohn .

Comparative diagnosis.

Belongs to the group of Cratospila species together with C. alboapicalis Tobias, 1990, described from Vietnam, in having the apical half of ♀ antenna with 8-13 white segments, and antenna of ♀ with dark apical part. In Cratospila alboapicalis length of eye 4-5 times length of temple in dorsal view (1.6 times in Cratospila ejuncida sp. nov.), vein m-cu of fore wing subinterstitial (distinctly antefurcal in C. alboapicalis ), and notauli on middle of mesoscutum narrowly crenulate (coarser crenulate). Differs from the similar C. syntoma sp. nov. by having the second submarginal cell rather slender (vein 2-SR 1.8-1.9 times longer than vein 3-SR; 1.4-1.5 times in C. syntoma sp. nov.), vein r of fore wing twice as long as wide (approximately as long as wide), first subdiscal cell of fore wing ca 8 times longer than wide (6 times), pedicellus entirely yellow (partly infuscated), and eye in dorsal view ca 1.6 times longer than temple (ca 2.1 times).

Description.

Holotype, ♀: length of body in lateral view 2.5 mm (Fig. 2A ), length of antenna 4.4 mm, and length of fore wing 2.5 mm.

Colour: Head orange; antenna (except for two dark apical segments), with 11 flagellomeres white; mandible orange brown and apically dark brown. First tergite dark brown and mesonotum entirely black. Pedicellus entirely yellow.

Head (Fig. 2D ): width 1.2 times median length in dorsal view. Antenna (Fig. 2B ) twice as long as body in female, 28 segmented. First flagellomere 1.8-1.9 times longer than second flagellomere. Compounded eye slightly oval 1.2 times as long as wide in lateral view. Width of face (Fig. 2E ) 0.9-1.0 times its height from ventral rim of antennal sockets to upper margin of clypeus. Eye in dorsal view 1.6 times as long as temple. Ocello-ocular line 2.5 times longer than diameter of anterior ocellus; OOL: AOL: POL = 11: 3: 7. Stemmaticum concave. Vertex smooth and gloss with black line. Mandible with three teeth; first and third teeth smooth.

Mesosoma: Mesosoma (Fig. 2G ) 1.5-1.6 times longer than wide in dorsal view. Notauli on middle of mesoscutum narrowly crenulate, not reaching medio-posterior depression; scutellar sulcus with four carinae; metanotum sculptured; small bump in hind coxa adjacent to metapleuron. Propodeum (Fig. 2H ) 0.6 times longer than width, more extensively rugose medially, lateral view of propodeum not bent; precoxal sulcus (Fig. 2F ) is shallow and incomplete. Fore wing (Fig. 2C ) 2.5 times as long as wide; pterostigma long and narrow, 4.2 times longer than wide; vein r of fore wing 1.9 times longer than wide; vein 2-SR slightly bent; vein 2-SR+M and r-m not sclerotized; vein 2-SR: vein r: vein 3-SR = 33: 5: 17; first subdiscal cell of fore wing ca 7.3 times longer than wide. Hind wing vein M+CU: vein 1-M = 69: 4

Leg: hind coxa compressed and grooved; hind coxa 1.5 times longer than hind trochanter; hind femur 0.6 times longer than hind tibia; hind tibia 1.01 times longer than hind tarsus.

Metasoma: first tergite striate and narrow, brown, 2.5 times longer than apical width; T 1: T 2 = 41:23. Setose part of ovipositor sheath (Fig. 2I ) 0.7 times as long as mesosoma, 0.5 times as long as hind tibia and with setae.

Male. Unknown.

Distribution.

South Korea.

Etymology.

Named after the relatively slender second submarginal cell of the fore wing: " ejuncidus " is Latin for slender.

Figures

Figure 2. Cratospila ejuncida sp. nov. ♀ A body B antenna C wings D head, dorsal E head, frontal F mesosoma, lateral G mesosoma, dorsal H propodeum, dorsal I ovipositor and its sheath, lateral.