Echthrodelphax laotianus Olmi, 1984

Xu, Zaifu, Olmi, Massimo & He, Junhua, 2013, Dryinidae of the Oriental region (Hymenoptera: Chrysidoidea), Zootaxa 3614 (1), pp. 1-460 : 343-345

2. Echthrodelphax laotianus Olmi, 1984

( Plate 102B, C )

Echthrodelphax laotianus Olmi 1984: 1158 ; Olmi 1998e: 91; Xu et al. 2011 g (Suppl.): 18.

Description of Female. Fully winged; length 2.5 mm. Head, antenna, prothorax and scutum testaceous; rest of mesosoma black, except posterior extremity of propodeum yellow; petiole black; metasoma testaceous, except tergite 1 partly brown. Antenna clavate. Head shiny, smooth, unsculptured, except occiput and part of vertex granulated; ocellar triangle strongly isosceles, with median longitudinal keel; OL much longer than POL. Palpal formula 5/2. Pronotum crossed by strong transverse impression, with disc dull and granulated; anterior collar smooth, shiny and unsculptured; posterior edges of pronotum rounded, not produced into lobes. Scutum shiny, smooth, unsculptured. Notauli complete, posteriorly separated. Scutellum shiny, smooth, finely punctate. Metanotum very reduced and short. Propodeum reticulate rugose, with strong transverse keels; posterior surface without longitudinal keels. Fore wing of holotype hyaline, without dark transverse bands; in specimen from Thailand, Maerim, fore wing with one dark transverse band. Protrochanter approximately four times as long as broad. Enlarged claw ( Plate 102C ) with one subapical tooth and one row of five lamellae. Segment 5 of protarsus ( Plate 102C ) with one row of about nine lamellae; distal apex with about nine lamellae. Tibial spurs 1/ 0/1.

Description of Male. Fully winged; length 0.9–1.6 mm. Head black, except mandible testaceous; antenna brown; mesosoma black; metasoma brown; legs testaceous. Antenna filiform; antennal segments in following proportions: 5:4.5:7:8:8:8:7.5:8:7:9. Head swollen, shiny, finely punctate, unsculptured among punctures; frontal line incomplete, only present in anterior half of face; occipital carina complete; temple very prominent; POL = 4; OL = 2; OOL = 4; OPL = 1; TL = 4.5; greatest breadth of posterior ocelli slightly longer than OPL (1.5:1). Palpal formula 5/3. Scutum finely punctate, unsculptured among punctures. Notauli complete, posteriorly separated; minimum distance between notauli as long as greatest breadth of posterior ocelli. Scutellum and metanotum shiny, smooth, finely punctate, unsculptured among punctures. Propodeum dull, completely reticulate rugose, without transverse or longitudinal keels. Fore wing hyaline, without dark transverse bands; distal part of stigmal vein much longer than proximal part (14:6). Paramere ( Plate 102B ) with inner dorsal fold-shaped process not showing any sense organs. Tibial spurs 1/1/2.

Material examined. Type: holotype ♀: LAOS: Vientiane Prov., Vientiane ( BPBM). Other material. CHINA: Hainan, Mt. Yinggeling , 17–20.VII.2010, Huayan Chen leg., 1♂ ( SCAU). LAOS: Khammouan Prov., Ban Khoun Ngeun, 18°07'N 104°29'E, 250 m, XI.2000, E. Jendek leg., 1♂ ( OLL). THAILAND: Chiang Mai Prov., Maerim, ♀♀ and ♂ ( NHMLA, AMNH) .

Hosts. Unknown.

Distribution. China (Hainan), Laos (Vientiane, Khammouan), Thailand (Chiang Mai).

Figures

PLATE 102. A, B, E, F. Male genitalia. C, D. Chelae. A. Echthrodelphax fairchildii from Hawaii (from Olmi 1984). B, C. E. laotianus from Thailand (from Olmi 1998e). C. E. laotianus, holotype (from Olmi 1984). D. E. rufus, paratype (arolium removed) (from Olmi 1984). E, F. E. rufus from China, paramere in ventral side (E) and dorsal view (F) (from Olmi 1995a). Scale bar 0.13 mm for A, 0.08 mm for B, 0.14 mm for C, 0.11 mm for D, E and F.