Anteon yasumatsui Olmi, 1984

Xu, Zaifu, Olmi, Massimo & He, Junhua, 2013, Dryinidae of the Oriental region (Hymenoptera: Chrysidoidea), Zootaxa 3614 (1), pp. 1-460 : 191-192

140. Anteon yasumatsui Olmi, 1984

(Plate 50E, 51A, B )

Anteon yasumatsui Olmi 1984: 424; Olmi 1991: 216; Omar & Olmi 1996: no page; Yang et al. 1997: 10; Omar et al. 1997: 182; Guglielmino & Olmi 1997: 229–230, 256; Olmi 1998b: 56; Olmi 1999b: 28; Olmi 2000a: 94; He & Xu 2002: 157; Guglielmino & Olmi 2006: 51.

Anteon fijianum Olmi 1984: 569 (synonymized by Olmi 1998b); type locality: Lautoka ( Fiji Islands); Olmi 1990b: 789; Olmi 1998b: 56.

nec Anteon fijianum Olmi (male): Olmi 1991: 228.

nec Anteon vitiense Olmi 1998b: 56.

Anteon malaysianum Olmi 1987c: 36 (synonymized by Olmi 2005a); type locality: Carambola Farm (Serdang, Malaysia).

Description of Female. Fully winged; length 1.2–2.3 mm. Head black, except mandible testaceous; antenna yellow-testaceous, occasionally brown; mesosoma and metasoma black; legs completely yellow-testaceous; occasionally legs brown, except tarsi testaceous. Antenna clavate; antennal segments of holotype of A. yasumatsui in following proportions: 8:4:2.5:2.5:2:3:3:3:3:5; antennal segments of holotype of A. malaysianum in following proportions: 7:4.5:3.5:3.5:3:3:3:3:3:5. Head dull, completely granulated; frontal line incomplete or absent; head of holotype of A. yasumatsui with POL = 4; OL = 3; OOL = 4; OPL = 3; TL = 5; head of holotype of A. malaysianum with POL = 5; OL = 3; OOL = 4; OPL = 3; TL = 5; occipital carina complete. Pronotum dull, granulated, sculptured by transverse keels; occasionally pronotum partly rugose; posterior surface of pronotum as long as, or slightly longer than half of scutum; pronotal tubercle reaching tegula. Scutum shiny or dull, completely unsculptured (in A. yasumatsui) or completely granulated (in A. malaysianum); occasionally scutum with area between notauli unsculptured and lateral areas granulated. Notauli incomplete, reaching approximately 0.3–0.5 length of scutum. Scutellum and metanotum shiny, smooth, unsculptured. Propodeum reticulate rugose, with strong transverse keel between dorsal and posterior surface; posterior surface without longitudinal keels. Fore wing hyaline, without dark transverse bands; distal part of stigmal vein much shorter than proximal part (2: 4 in holotype of A. yasumatsui; 3: 6 in holotype of A. malaysianum). Protarsal segments of holotype of A. yasumatsui in following proportions: 5:1.5:2:3.5:9; Protarsal segments of holotype of A. malaysianum in following proportions: 7:2:2:3.5:9. Segment 2 of protarsus produced into hook. Enlarged claw ( Plate 51A, B ) with proximal prominence bearing one long bristle. Segment 5 of protarsus ( Plate 51A, B ) with basal part shorter than distal part, with one–two rows of 7–18 lamellae, in addition to many hairs and bristles; distal apex with 4–5 lamellae. Tibial spurs 1/1/2.

Description of Male. Fully winged; length 1.3–2.0 mm. Head black or occasionally brown–reddish, except mandible testaceous; antenna yellow-testaceous; mesosoma and metasoma black; legs yellow-testaceous. Antenna filiform. Head dull, completely strongly or slightly granulated; POL = 5; OL = 3; OOL = 4; OPL = 3; TL = 4; occipital carina complete. Pronotum short and rugose. Scutum shiny, smooth, unsculptured. Notauli incomplete, reaching approximately 0.5 length of scutum. Scutellum and metanotum shiny, smooth, unsculptured. Propodeum reticulate rugose, with strong transverse keel between dorsal and posterior surface; posterior surface without longitudinal keels. Fore wing hyaline, without dark transverse bands; distal part of stigmal vein much shorter than proximal part (2:5). Paramere (Plate 50E) without distal inner pointed process and without dorsal proximal membranous process. Tibial spurs 1/1/2.

Material examined. Types: ♀ holotype of A. yasumatsui: THAILAND: Ubol Ratchathani , Phibun Mangsahan ( KYC) ; ♀ holotype of A. fijianum: FIJI ISLANDS: Viti Levu Island, Lautoka , 16.IV.1926, reared from Nesosteles sanguinescens Kirkaldy, W. Greenwood leg. ( BMNH) ; ♀ holotype of A. malaysianum: MALAYSIA: Malaya, Selangor, Serdang, Carambola Farm , X.1979, Gauld & Khashiyah leg. ( BMNH) . Paratypes of A. yasumatsui: INDIA: Delhi, three paratypes (1♂ and 1♀ in BMNH, 1♀ in AMNH) ; INDONESIA: Java, Pekalongan , 1 male ( AMNH) . THAILAND: Maha Sarakham, Non Sa-ard , 1♂ ( KYC) ; Paratypes of A. fijianum: AUSTRALIA: New South Wales, Narrabri , 24.I.1961, M. Nikitin leg., 1♀ ( BMNH) . FIJI ISLANDS: Viti Levu Island , same locality label as holotype, 2♀♀ ( BMNH, AMNH) ; same locality label as holotype, 6.VI.1921, 1♀ ( BMNH) . Other material. CHINA: Guangdong, Nanling National Nature Reserve, Ruyang , parasitized host collected 12.IX.2004, dryinid cocooning 13.IX.2004, dryinid adult emergence, X.2004, M. Olmi reared from an adult of an unidentified Cicadellid, 1♀ ( MOLC) ; Guangxi, Nanning , rice paddy, VIII.1983, Shaolong Yang leg., 1♀ ( ZJUC) ; Guangxi, Guilin, rice paddy, VIII.1983, Shaolong Yang leg., 1♀ and 1♂ ( ZJUC); Zhejiang, Jinghua, Shuanglong, 8.VI.1985, Xuexin Chen leg., 1♂ ( ZJUC); Taiwan, Nantou, Lienhuachih , 650 m ( TARI); Taiwan , Pingtung , Ouluanpi ( TARI); Taiwan , Pingtung , Shantimen ( TARI); Taiwan , Taipei , Kungkuan ( TARI); Taiwan , Taipei ( TARI); Taiwan , Taichung , Wanfeng Hill ( TARI); Taiwan , Taichung , Kukuan , 730 m (TARi); Taiwan , Tainan ( TARI). INDIA: Delhi, New Delhi, 21.VII.2000 ( IARI) ; Madhya Pradesh, Bilaspur ( BMNH); Uttar Pradesh, Aligarh , 30.IV.1978 , M. Verma leg. ( CNC); Uttar Pradesh, Dehra Dun , 21.X.1979, Z. Bou č ek leg., 1♀ ( BMNH). MALAYSIA: Malaya, Serdang ( DBUS). PHILIPPINES: Palawan Island , 21 Km N Puerto Princesa, Irawan Riv. ( AMNH). THAILAND: Chiang Mai Prov., Maerim , 19–20.IV.2000, 25–26.I.2001, 18–19.IV.1997, 18–19.II.2001, 6–7.III.2001, 13–14.IV.2000, 17–18.IV.2000, 19–20.IV.2000, Malaise trap, R.A. Beaver leg., many specimens ( NHMLA, RABC, AMNH); Phetcha Buri Prov., near Phetcha Buri City, at Km 130 of highway H 4, 19.II.2000 , Ralf Jochmann leg., 7♀♀ ( MTC). Australian region: AUSTRALIA: ACT, Black Mtn. ( ANIC); Queensland, Heathlands , 11°45'S 142°35'E ( ANIC). CAROLINE ISLANDS: Yap Island, Kolonia ( BPBM). FIJI ISLANDS: Viti Levu Island, Nandi ( BPBM); Viti Levu Island , Suva ( NHMLA) .

Hosts. Cicadellidae ( Guglielmino & Olmi, 1997, 2006): in the Fiji Islands: Balclutha rubrostriata (Melichar) ( Olmi, 1984, as Nesosteles sanguinescens Kirkaldy); in Malaya ( Malaysia): Nephotettix malayanus Ishihara & Kawase ( Omar & Olmi, 1996; Omar et al., 1997); Nephotettix nigropictus (Stål) ( Omar & Olmi, 1996; Omar et al., 1997); Nephotettix virescens (Distant) ( Guglielmino & Olmi, 1997); in China (Guangxi): Nephotettix cincticeps (Uhler) ( Yang et al., 1997).

Biology. Parthenogenesis arrhenotokous ( Omar et al., 1997; Olmi, 1999b). Information on biology in Omar et al. (1997). The period from emergence of mature larva from host's body to emergence of dryinid adult from cocoon lasts 17–19 days (17.3 in average) in females and 14–15 days in males. Cyst on host situated laterally between head and prothorax.

Distribution. China (Guangdong, Guangxi, Zhejiang, Taiwan), Thailand (Ubol Ratchathani), Fiji Islands ( Viti Levu), Malaysia (Malaya), India (Delhi, Madhya Pradesh), Indonesia (Java), Thailand (Maha Sarakham, Chiang Mai, Phetcha Buri), Australia (New South Wales), Australia (Black Mtn., Queensland), Caroline Islands (Yap Island).

Figures

PLATE 51. Chelae, holotypes. A. Anteon yasumatsui (from Olmi 1984). B. A. malaysianum (=A. yasumatsui) (from Olmi 1987c). C. A. yoshimotoi (from Olmi 1991). D. A. yunnanense (from Xu et al. 2006b). E. A. zhangae (from Xu et al. 2010a). Scale bar 0.14 mm for A and B, 0.18 mm for C, 0.15 mm for D and 0.16 mm for E.