Agriotypus jilinensis Chao, 1981

Choi, Jin-Kyung, Lee, Jong-Wook, Konishi, Kazuhiko, Suh, Kyong-In & Bennett, Andrew M. R., 2024, Description of one new species of Agriotypus Curtis, 1832 (Hymenoptera, Ichneumonidae, Agriotypinae) from South Korea, Journal of Hymenoptera Research 97, pp. 471-490 : 471-490

publication ID	https://doi.org/ 10.3897/jhr.97.119871
publication LSID	lsid:zoobank.org:pub:557D8199-EBFE-46D3-B455-E3CFE3DFB19F
DOI	https://doi.org/10.5281/zenodo.11480249
persistent identifier	https://treatment.plazi.org/id/FE3532B5-A436-5C1F-890C-73AE973B6A83
treatment provided by	Journal of Hymenoptera Research by Pensoft
scientific name	Agriotypus jilinensis Chao, 1981
status

Treatment

Agriotypus jilinensis Chao, 1981 View in CoL

Figs 1 View Figure 1 , 6 C – D View Figure 6 , 7 A, C View Figure 7 , 8 A, B View Figure 8

Agriotypus jilinensis Chao, 1981: 79. Chao & Zhang, 1981, by original description. View in CoL

Specimens examined.

Holotype: ♂, China: Changbaishan Nature Reserve , Jilin Province, 25. vi. 1980 (Y. Zhang) (Fujian Agriculture and Forestry University) . Other material: South Korea: 1 ♀, 2. iv. 2015, Toegokgyo , Toegok-ri, Yeongok-myeon, Gangneung-si, Gangwon-do (S. W. Jeong) ( NNIBR) ; 1 ♀, 27. iv – 10. v. 2003, Jirisan , Hamyang-gun, Samjeong-li, 700 m asl, Malaise trap in a big clearing, 35 ° 20 ' 55 " N, 127 ° 38 ' 21 " E, (P. Tripotin) ( EUM) GoogleMaps ; 1 ♀, 11. iv – 8. v. 2004, Jirisan , Macheon-myeon, Samjeong-li, 700 m asl, Malaise trap on small stream in forest clearing, 36 ° 20.930 ' N, 127 ° 38.503 ' E, (P. Tripotin) ( EUM) GoogleMaps ; 1 ♀ 18 ♂♂, 8. v – 5. vi. 2004, Jirisan , Macheon-myeon, Samjeong-li, 700 m asl, Malaise trap on small stream in forest clearing, 36 ° 20.930 ' N, 127 ° 38.503 ' E, (P. Tripotin) ( EUM) GoogleMaps ; 1 ♀, 11–18. v. 2003, Jirisan , Samcheon-ri, Macheon-myeon, Hamyang-gun, Gyeongsangnam-do, Alt. 700 m, in cleared resinuous forest, (P. Tripotin) ( DNUE _ IIEI) ; 2 ♂♂, 24. iv. 1997, Mt. Odae, Pyungchang , Kangwon , yellow pan trap (J. Y. Choi) ( EUM) ; 1 ♀, 2–26. v. 2006, above small stream, Dunjeon-ri , Sangchon-myeon, Yeongdong-gun, Chungcheongbuk-do, Alt. 750 m, 36 ° 04 ' 36 " N, 127 ° 50 ' 17 " E, (P. Tripotin) ( DNUE _ IIEI) GoogleMaps .

Description.

Female. Body length 5.6–6.7 mm; fore wing length 4.5–5.2 mm.

Head. Face width (minimum length of inner orbits) 1.1 times as wide as its median height (length between antennal socket and clypeal margin), with a median vertical ridge (see Fig. 4 G View Figure 4 in Bennett 2001), with dense punctures and hairs except area between lateral ocellus and eye impunctate (Fig. 1 B View Figure 1 ). Antenna with 20–22 flagellomeres, 0.5 times as long as fore wing. Temple behind eyes slightly roundly narrowed in dorsal view. Antennal scrobe deep. POL: OOL = 1: 1–1: 2. Face with median longitudinal ridge, coarse rugosity and dense pubescence. Area between antennal sockets with a glabrous short longitudinal tubercle. Clypeus in anterior view with apical margin truncate, not pointed; anterior edge in profile moderately convex; summit of convexity in lateral view angulate; shape of angular summit of clypeus in anterior view rounded medially (Fig. 1 B View Figure 1 ). Distance between anterior tentorial pits 1.2–1.3 times as long as length between a tentorial pit and eye. Occipital carina weak, but complete. Malar space 1.4 times as long as basal width of mandible; mandible twisted, lower tooth longer than upper one.

Mesosoma. Pronotum with long and strong epomia extending dorsal of furrow and almost straight. Mesoscutum shiny, anterior 1 / 2–2 / 3 of median lobe moderately punctate and setose, the rest of medial lobe and all lateral lobes completely impunctate and lacking setae; notaulus distinct, meeting at around middle (Fig. 1 D View Figure 1 ). Scutellum in dorsal view, long triangle-shaped, 1.6 times as long as its basal width including spine, 0.9–1.1 times as long as propodeum; scutellum with lateral carinae at base, convex medially, tapering toward apex, spine-like apical half, smooth (Fig. 1 E View Figure 1 ); spine 0.5–0.6 times as long as propodeum (distance as long as lateral longitudinal carinae from base to apex); in lateral view roundly curved medially, weakly up-curved (Fig. 8 D View Figure 8 ). Mesopleuron finely punctate and pubescent, with longitudinal groove complete, without longitudinal carina on anterior edge at mid-height; epicnemial carina curving sharply anteriorly to meet anterior edge of mesopleuron and with a vertical extension dorsally; sternaulus present as a weak and wide groove. Metapleuron finely punctate and pubescent Propodeum with lateromedian longitudinal carinae almost parallel; lateral longitudinal carinae straight, complete and parallel to lateromedian longitudinal carinae (Fig. 1 F, G View Figure 1 ).

Wings. Fore wing with 1 cu-a distad M & Rs; abscissa of vein M between 2 rs-m and 2 m-cu 1.0–2.0 times as long as 2 rs-m. Hind wing with 6–8 distal hamuli; vein 1 / Cu & 1 cu-a intercepted by 1 / Cu in lower 0.44 Cu (Fig. 1 I View Figure 1 ).

Metasoma. Metasomal tergite I 3.0–4.2 times as long as its posterior width (Fig. 1 C View Figure 1 ), 1.6 times as long as length of propodeum; metasomal tergite I finely punctulate-reticulate, spiracles situated at anterior 0.20–0.25; lateromedian carinae and dorsolateral carinae complete and strong, reaching to apex. Metasomal tergite II and following tergites densely punctulate and shiny (Fig. 1 J View Figure 1 ). Metasomal tergite II without dorsal and dorsolateral carinae. Ovipositor sheath 0.6 times as long as length of hind basitarsus.

Colour. Generally reddish brown. Head, pronotum, mesoscutum and metasoma reddish brown. Scutellum and metasomal tergite I dark reddish brown. All legs, mesopleuron and propodeum almost black. Fore wing with fuscous longitudinal bands and with wide hyaline spots occupying middle of basal cell, discosubmarginal cell and distal half of marginal and basal of fourth submarginal cells (Fig. 6 C View Figure 6 ); hind wing hyaline (Fig. 1 I View Figure 1 ).

Male. Agrees with the above-mentioned description of the female, except for the following character states: Body length 5.5–7.4 mm (holotype: 7 mm); fore wing length 4.7–6.0 mm; antenna with 29–34 flagellomeres (holotype: 32 flagellomeres); mesoscutum entirely punctate with setae; spine of scutellum laterally compressed and slightly up-curved or straight (Fig. 8 B View Figure 8 ); abscissa of vein M between 2 rs-m and 2 cu-m 0.3–0.9 times as long as 2 rs-m (Fig. 6 D View Figure 6 ); metasomal tergite I 5.4 times as long as apical width, lateromedian carina incomplete posterior to 0.2 length of segment; body, antenna and legs black; wings hyaline except apical marginal area of fore wing weakly tinged with brown. Male genitalia and hypopygium shown in Fig. 7 A, C View Figure 7 , with digitus relatively weakly elongated but shorter than half of paramere, somewhat broadened toward apex (Fig. 7 C View Figure 7 ). Apex of paramere almost truncate with corners rounded. Penis valve slightly curved ventrally; basal apodeme of aedeagus striate dorsally.

Variation. The scutellar spine of the male holotype is straight and relatively stout apically compared to some South Korean A. jilinensis specimens that are more upcurved and tapered (although some are straight and non-tapered as in Fig. 8 B View Figure 8 ).

Larva. Unknown.

Host.

Unidentified Trichoptera .

Distribution.

China (Jilin), South Korea (new record).

Region.

Eastern Palaearctic.

Remarks.

This species has been known previously from only two pharate males (holotype and paratype). Thus, this is the first description of the female and of the wings of the male. (Korean name: Am-bul-eun-bae-mul-beol).