Cratospila albifera Sohn & van Achterberg sp. nov. Figure 1

Type material.

Holotype, ♀ (NIBR), South Korea, National Arboretum of Korea, Gwangneung Forest, Pocheon-si, Soheul-eup, Gyeonggi-do, 37°45'32.2"N, 127°09'42"E, 16-30.IV.2018, Kim, Kim, Jo, Ki. GenBank accession no. MW 376064. Paratype. 1♀, same data as holotype .

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. However, in C. alboapicalis length of eye 4-5 times length of temple in dorsal view (1.9 times in the C. albifera sp. nov.) and antenna of ♀ with dark apical segments (only white segments in C. albifera sp. nov.). Differs from the very similar C. luteocephala sp. nov. by having the minimum width of face 1.2 times its height (0.9 times in C. luteocephala sp. nov.), vein r of fore wing ca 5 times longer than wide (ca 3 times), and first subdiscal cell of fore wing ca 5.0 times longer than wide (ca 7.5 times). COI sequence of C. albifera sp. nov. differs by 10% from that of C. luteocephala sp. nov. (Table 1).

Description.

Holotype, ♀: length of body in lateral view 3.2 mm, length of antenna 4.6 mm, and length of fore wing 3.1 mm.

Colour: body (Fig. 1A) brown, but head entirely orange-yellow; first tergite and mesonotum entirely reddish brown; antenna yellowish brown basally, medially dark brown, subapically white (11 flagellomeres); mandible pale orange.

Head (Fig. 1D): width 1.3 times median length in dorsal view. Antenna (Fig. 1B) 1.4 times longer than body in female, 32-segmented. First flagellomere 2.0 times longer than second. Compounded eye slightly oval 1.1 times as long as wide in lateral view. Width of face (Fig. 1E) 1.2 times its height from ventral rim of antennal sockets to upper margin of clypeus. Eye in dorsal view 1.9 times as long as temple. Ocello-ocular line (OOL) 2.0 times longer than diameter of anterior ocellus; OOL: antero-posterior ocellar line (AOL): postero-ocellar line (POL) = 11: 3: 6. Stemmaticum concave. Vertex smooth and polish with reddish brown line. Mandible with three teeth; second tooth narrow and sharp with dark brown tip. Maxillary palp approximately as long as mesosoma.

Mesosoma: 1.5 times longer than wide in dorsal view. Mesosoma (Fig. 1G) with medio-posterior depression; notauli chain-shaped, completed but not reaching medio-posterior depression; scutellar sulcus with six carinae; metanotum sculptured; small basal bump on hind coxa. Propodeum (Fig. 1H) 0.5 times longer than wide, anterior half of propodeum smooth, posterior of median carina strongly wrinkled; precoxal sulcus (Fig. 1F) deep and distinct, consist of about seven grooves, lateral view of propodeum bent. Fore wing (Fig. 1C) 2.5 times as long as wide; pterostigma long and narrow, 3.9 times longer than wide; vein r of fore wing 4.7 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 = 34: 9: 24; first subdiscal cell of fore wing ca 5.0 times longer than wide. Hind wing vein M+CU: vein 1-M = 66: 5

Leg: hind coxa compressed and grooved; hind coxa 2.8 times longer than hind trochanter; hind femur 0.9 times longer than hind tibia; hind tibia 0.8 times longer than hind tarsus.

Metasoma: first tergite striate and narrow, 2.8 times longer than apical width and dark brown, T 1: T 2 = 59:23. Setose part of ovipositor sheath (Fig. 1I) 0.6 times as long as mesosoma, 0.5 times as long as hind tibia and with long setae.

Male. Unknown.

Variation. Body length of female is 2.9-3.2 mm; length of the fore wing of female is 3.0- 3.1 mm; Antenna 1.2-1.4 times longer than body in female, 27-32-segmented. First flagellomere 1.9-2.0 times longer than second; metasoma 2.7-2.8 times longer than apical width; setose part of ovipositor sheath 0.58-0.61 times as long as mesosoma, 0.46-0.51 times as long as hind tibia and with long setae.

Distribution.

South Korea.

Etymology.

Named after the white apex of the ♀ antenna: " Cratospila albifera " is derived from “albus” (Latin for white) and “fero” (Latin for carry or bear).