The ConganteoninaeOlmi, 1984, a small subfamily within the family Dryinidae, consists of fifteen species distributed in two genera (Xu et al., 2013): ConganteonBenoit, 1951 (11 species); FiorianteonOlmi, 1984 (4 species). In East Asia, two genera and five species are recorded in China, one genus and species in Japan (Xu et al., 2013).

During our studies on Dryinidae, both above of the genera of Conganteoninae and two species, Conganteon nepalenseOlmi, 1984 and Fiorianteon junoniumOlmi, 1984, were identified for the first time in South Korea. This discovery gave the chance to provide a key to genera of Conganteoninae, diagnoses, illustrations and photographs of the diagnostic characteristics.

Materials and Methods

All specimens are deposited in the Yeungnam University (YNU), Gyeongsan, South Korea. The terminology used in the present study follows that of Olmi (1984, 1994, 1999). The following abbreviations are used: OL, distance between the inner edges of a lateral ocellus and the median ocellus; OOL, distance from the outer edge of a lateral ocellus to the compound eye; OPL, distance from the posterior edge of a lateral ocellus to the occipital carina; POL, distance between the inner edges of two lateral ocelli; st, subapical tooth; TL, distance from the posterior edge of an eye to the occipital carina; MT, Malaise trap.

Result and discussion

Systematic accounts

Subfamily ConganteoninaeOlmi, 1984 발톱집게벌아과 (신칭)

ConganteoninaeOlmi, 1984: 96 (Type genus: ConganteonBenoit, 1951).

Diagnosis. Fully winged; occipital carina complete; mandible quadridentate, with one intermediate rudimentary tooth; palpal formula 5/3 or 6/3; forewing with two cells (costal and median) enclosed by pigmented veins; forewing with stigmal vein and pterostigma; tibial spurs 1/1/2; foretarsus chelate, chela with rudimentary claw (female); basivolsella completely situated down distivolsella (male).

Key to genera of the subfamily Conganteoninae

1. Forewing with distal part of stigmal vein much longer than proximal part (Fig. 1D) ······················ Conganteon Benoit - Forewing with distal part of stigmal vein as long as, or shorter than proximal part (Fig. 2D), rarely slightly longer than proximal part ·································· Fiorianteon Olmi

Genus ConganteonBenoit, 1951 발톱집게벌속 (신칭)

ConganteonBenoit, 1951: 11 (Type species: Conganteon vulcanicumBenoit, 1951).

Chelanteon Olmi, 1984: 105 (synonymized by Olmi, 1995). Distribution. Afrotropical, Oriental and Palaearctic regions.

Conganteon nepalenseOlmi, 1984 발톱집게벌 (신칭) (Figs. 1A-D, 3A)

Conganteon nepalenseOlmi, 1984: 98.

Diagnosis of male. Body length 3.10 mm. Head, antenna, mesosoma and metasoma black; legs brown except all coxae black and all trochanters, basal three-fourths of the forefemur, mid and hind femora dark-brown. Antenna filiform; antennal segments in following proportions: 15: 7: 21: 19: 19: 17: 15: 15: 13: 17. Head completely reticulate rugose (Fig. 1B); frontal line complete (Fig. 1B); POL: 6; OL: 3; OOL: 10; OPL: 6; TL: 10; occipital carina complete. Scutum, scutellum and metanotum completely reticulate rugose (Fig. 1C). Notauli hardly visible, reaching approximately 0.35× length of scutum (Fig. 1C). Propodeum reticulate rugose, without transverse or longitudinal keels. Forewing hyaline, without dark transverse bands (Fig. 1D); stigmal vein curved, distal part of stigmal vein much longer than proximal part (8: 5) (Fig. 1D). Genitalia (Fig. 3A).

Female. Unknown in South Korea (see description in Xu et al., 2013).

Material examined. South Korea: 1♂, Chungcheongbuk-do, Danyang-gun, Danyang-eup, Cheondong-ri, Mt. Sobaeksan, Cheondong valley, 19-31.VI.2007 (MT), J.W. Lee (YNU).

Distribution. South Korea (new record), India (Tamil Nadu), Nepal (Nawakot-Syabrubens Road).

Hosts. Unknown.

Genus FiorianteonOlmi, 1984 짧은맥발톱집게벌속 (신칭) Fiorianteon Olmi 1984: 108 (Type species: Fiorianteon junoniumOlmi, 1984).

Distribution. Oriental and Palaearctic regions.

Fiorianteon junoniumOlmi, 1984 짧은맥발톱집게벌 (신칭) (Figs. 2A-D, 3B-C)

Fiorianteon junonium Olmi 1984: 109.

Diagnosis of female. Body length 3.10-3.50 mm. Head black, except mandible and clypeus yellowish-brown; antenna darkbrown, except ventral side of scape and pedicel yellowish-brown; mesosoma black; legs yellowish-brown, except basal half of hindcoxa black; metasoma dark-brown. Antennal segments in following proportions: 18: 11: 33: 24: 20: 17: 14: 14: 13: 15. Head shiny, smooth, strongly punctate, unsculptured among punctures (Fig. 2B); vertex behind ocellar triangle weakly rugose (Fig. 2B); frontal line complete (Fig. 2B); occipital carina complete; POL: 6; OL: 3; OOL: 10; OPL: 4; TL: 10. Scutum shiny, very strongly punctate, unsculptured among punctures (Fig. 2C). Notauli incomplete, reaching approximately 0.60-0.70× length of scutum (Fig. 2C). Scutellum punctate, unsculptured among punctures. Metanotum dull and rugose. Propodeum dull, reticulate rugose, without transverse or longitudinal keels. Forewing hyaline, without dark transverse bands (Fig. 2D); stigmal vein curved, distal part of stigmal vein much shorter than proximal part (5: 9) (Fig. 2D). Protarsal segments in following proportions: 40: 7: 9: 18: 32. Enlarged claw with one very small subapical tooth, without lamellae, bristles or setae (Fig. 3C). Segment 5 of protarsus with one row of approximately 37 small lamellae; distal apex with approximately 14 lamellae (Fig. 3C).

Male. Body length 3.60-3.85 mm. Similar to female, but antenna brown, except ventral side of scape yellowish-brown; antennal segments in following proportions: 22: 10: 30: 28: 23: 21: 18: 18: 16: 19. POL: 6; OL: 3; OOL: 10; OPL: 5; TL: 10. notauli incomplete, reaching approximately 0.50-0.80× length of scutum; forewing hyaline, without dark transverse bands; distal part of stigmal vein much shorter than proximal part (1: 2); genitalia (Fig. 3B).

Material examined. South Korea: 5♀♀2♂♂, Jeollanam-do, Jangseong-gun, Bukha-myeon, Yaksu-ri, Mt. Baegamsan, Cheongnyangwon (S-25), 26.IV-4.VI.2006 (MT), J.C. Jeong (YNU); 1♀, Gyeonggi-do, Yangpyeong-gun, Yongmun-myeon, Sinjeom-ri, Mt. Yongmunsan, 37°31'49.5"N, 127°34'18.8"E, 324 m, 18-31.VI.2009, J.O. Lim (YNU).

Distribution. South Korea (new record), China (Shaanxi), Japan (Honshu, Kyushu). Hosts. Unknown.