Dryinus pyrillivorus Olmi, 1986

Xu, Zaifu, Olmi, Massimo & He, Junhua, 2013, Dryinidae of the Oriental region (Hymenoptera: Chrysidoidea), Zootaxa 3614 (1), pp. 1-460 : 291-293

33. Dryinus pyrillivorus Olmi, 1986

( Plate 83A–F )

Dryinus pyrillivorus Olmi 1986: 66 ; Olmi 1993d: 42; Guglielmino & Olmi 1997: 228; He & Xu 2002: 270; Mita 2009b: 51 ; Xu et al. 2011 g (Suppl.): 15.

Richardsidryinus gauldi Olmi 1987c: 49 (synonymized by Olmi 1993d); type locality: Seria ( Brunei); Olmi 1993d: 42.

Dryinus kaihuanus Yang & Ma 1995: 263 (synonymized by He & Xu 2002); type locality: Mt. Gutianshan (Zhejiang, China).

Description of female ( Plate 83A ): fully winged; length 3.7–4.6 mm. Head black, except mandible, clypeus and anterior region of face testaceous (in specimen from China, Dinghushan National Nature Reserve, clypeus brown, except margins yellow, malar space testaceous and face completely black); antenna testaceous; occasionally antenna brown, except segments 1–2 and 10 testaceous; mesosoma black, except lateral margins and posterior collar of pronotum testaceous; metasoma black; legs testaceous; occasionally legs more or less darkened. Antenna clavate; antennal segments of holotype of D. pyrillivorus in following proportions: 11:7:46:21:17:13:11:10:7:11; antennal segments of holotype of R. gauldi in following proportions: 7:5:31:14:12:9:8:7:6:7 Head slightly excavated ( Plate 83B, C ), shiny, granulated, with few longitudinal striae on face; frontal line complete; occipital carina complete, laterally not reaching eyes; temple distinct; posterior ocelli not touching occipital carina; POL = 3; OL = 3; OOL = 12; OPL = 1; TL = 12. Greatest breadth of posterior ocelli shorter than TL. In holotype of R. gauldi and in other specimens, temple much shorter (OPL = 1; TL = 3). Pronotum granulated, with lateral regions and posterior collar sculptured by longitudinal striae; pronotum crossed by two transverse impressions; disc humped; posterior collar longer than anterior one; pronotal tubercle not reaching tegula. Scutum granulated, with many areolae near posterior margin. Notauli complete, posteriorly separated and hardly visible among areolae; minimum distance between notauli longer than POL (8:3). In specimen from Thailand, Maerim, notauli incomplete; reaching about 0.9 length of scutum. Scutellum granulated. Metanotum completely granulated, or with posterior half reticulate rugose. Propodeum reticulate–rugose, without longitudinal and transverse keels; dorsal surface longer than posterior surface (23:16). Fore wing with three dark transverse bands; distal part of stigmal vein longer than proximal part (18:8 or 12:6). Hindwing hyaline. Protarsal segments in following proportions: 19:4:7:16:25. In specimen from China, Mt. Gutianshan, protarsal segments in following proportions: 23:3:6:14:22. Enlarged claw not spatulate ( Plate 83D ), with one subapical tooth and one row of 11–13 lamellae. Segment 5 of protarsus ( Plate 83D ) with two rows of 17–24 lamellae; distal apex with at least 10–13 lamellae. In specimen from China, Mt. Gutianshan, enlarged claw with only five lamellae ( Plate 83E ). Tibial spurs 1/1/2 or 1/1/1.

Description of Male. Fully winged; length 1.7–2.9 mm. Head black, except mandible yellow; antenna brownyellow; mesosoma black; metasoma brown; legs testaceous, except metacoxa partly brown and metatibia partly darkened. Antenna filiform; antennal segments in following proportions: 7:6:17:11:12:12:11:10:9:10. Head dull, granulated and reticulate rugose; frontal line complete, continuing also on clypeus; occipital carina complete; temple almost absent in dorsal view; POL = 7; OL = 2.5; OOL = 4; OPL = 0.5; TL = 1; greatest breadth of posterior ocelli much longer than OPL (3.5:0.5). Scutum dull, granulated. Notauli complete, posteriorly separated; occasionally notauli incomplete, reaching about 0.7 length of scutum. Scutellum shiny, granulated. Metanotum with a median longitudinal furrow, with anterior half rugose and posterior half smooth, unsculptured. Propodeum reticulate rugose, without longitudinal keels on posterior surface. Fore wing hyaline, without dark transverse bands; distal part of stigmal vein much longer than proximal part (13:9). Genitalia with distivolsella situated near the distal apex of penis ( Plate 83F ). Tibial spurs 1/1/2.

Material examined. Types: ♀ holotype of D. pyrillivorus : INDIA: Tamil Nadu, Cuddalore, 15.IX.1975, ex Pyrilla, B. Velayutham leg. ( BMNH); ♀ holotype of R. gauldi : BRUNEI: Seria , VIII–IX.1979, coastal scrub, I.D. Gauld leg. ( BMNH); ♀ holotype of D. kaihuanus : CHINA: Zhejiiang, Mt. Gutianshan , 450 m, 21.VII.1992, Hong Wu leg., not examined, because probably lost (it is not in CAU). Paratypes of D. pyrillivorus : PHILIPPINES: Mindanao Island, Mt. Apo , Todaya Plateau , 1♀ ( MCZ). CHINA: Hainan, Tien Fong Mts. (= Mt. Jianfengling ), 20.V.1983, Z. Bouček leg., 1♀ ( BMNH). Other material. CHINA: Guangdong, Ruyuan, Nanling National Nature Reserve , 8.V.2004, 1–6.X.2004, Zaifu Xu leg., 2♀♀ ( ZJUC); Guangdong, Dinghushan National Nature Reserve, 2–6.VIII.2010, Huayan Chen leg., 1♀ ( SCAU); Macao, R. Perkins collection, 1♀ ( USNM); Yunnan, Gejiu, Manhao , Lushuihe , 23.VII.2003, Zaifu Xu leg., 1♀ ( ZJUC); Zhejiang, Kaihua, Mt. Gutianshan , 2.VII.2005, Xuexin Chen leg., 1♀ ( SCAU); Zhejiang, Mt. West Tianmushan, 28.VII.2003, Xiaoxia Yu leg., 28.VII.2003, Xuexin Chen leg., 30.VII.2003, Xuexin Chen leg., 2♀♀ and 1♂ ( SCAU). INDIA: Andhra Pardesh, Shakarnagar, 24.IX.1985, ex nymphs of Pyrilla , 2♀♀ ( BMNH); Gujarat, Navsari, 10.XI.1977, ex Pyrilla , 1♀ ( BMNH); Maharashtra, Nasik District, Taluka Malegaon , Ravalgaon , 20.VIII.1982, on sugar cane leaves, 4♂, 1♀ ( BMNH); Tamil Nadu, Madras, Koothanallur , 1965, from sugarcane pests, 3♀♀ ( BMNH). JAPAN: Okinawa, Yonaguni-jima, Mt. Kubura-dake, 9–11.VI.2005, YPT, T. Ishizaki & M. Sato leg., 1♀ ( ELKU) ( Mita , 2009b). PAKISTAN: Nawabshah, 19.I.1989, ex nymph of Pyrilla perpusilla on sugarcane, 4♂ ( BMNH); PHILIPPINES: Luzon Island, Benguet, Acupan ( MCZ); Mindanao Island, Kolambugan ( USNM); Negros Island, Victorias ( USNM). SRI LANKA: Uda Walawe National Park, 15.I.1992, ex nymphs of Pyrilla perpusilla , 4♀♀ and 5♂ ( BMNH). THAILAND: Chiang Mai Prov., Maerim , 5–8.I.1999, 1–2.III.2001, R.A. Beaver leg. ( NHMLA, MOLC, RABC); Mae Hong Son Prov., Soppong , 19°27'N 98°20'E, 1500 m, 7–12.V.1996 ( OLL).

Hosts. Lophopidae (Gugliemino & Olmi, 1997) : in India: Pyrilla sp. ( Olmi, 1986) ; in Pakistan and Sri Lanka: Pyrilla perpusilla (Walker) .

Distribution. China (Zhejiang, Hainan, Guangdong, Macao, Yunnan), India (Tamil Nadu, Andhra Pardesh, Gujarat, Maharashtra, Tamil Nadu), Brunei (Seria), Philippines (Mindanao, Luzon, Negros), Japan (Yonagunijima), Pakistan (Nawabshah), Sri Lanka (Uda Walawe), Thailand (Chiang Mai, Mae Hong Son).

Figures

PLATE 83. Dryinus pyrilliivorus. A. Female from Thailand. Length 4.0 mm. B. Head of female (holotype of Richardsidryinus gauldi) (from Olmi 1987c). C. Vertex of holotype (from Olmi 1986). D. Chela of holotype (from Olmi 1986). E. Female from China, Zhejiang (from He & Xu, 2002). F. Male genitalia. Scale bar 1.67 mm for B, 1.23 mm for C, 0.33 mm for D, 0.31 mm for E, 0.20 mm for F.