Encarsia plana Viggiani & Ren
Creators: name: Wang, Zhu-Hong
name: Huang, Jian
name: Polaszek, Andrew
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Aphelinidae
Encarsia
Encarsia plana

description: Encarsia plana Viggiani & Ren
(Figs 20–33)
Encarsia plana Viggiani & Ren, 1987: 28. Holotype female, China: Guangdong, Guangzhou, 8 October 1986 (coll. Hui Ren), ex? Bambusaspis sp. on bamboo (IEUN, examined).
Encarsia plana Viggiani & Ren: Viggiani & Ren, 1993: 226; Huang, 1994: 213; Huang & Polaszek, 1998: 1939.
Material examined. 1 ♂, China: Fujian, Fuzhou, Jinshan, 30 September 2013 (coll. Zhu-Hong Wang), ex. unidentified armoured scale on bamboo (FAFU); 2 ♀, China: Hainan, Sanya, 10 January 2014 (coll. Zhu-Hong Wang), ex. unidentified armoured scale on bamboo (FAFU); 4 ♀, China: Fujian, Fuzhou, Forest Park, 22 October 1989 (coll. Jian-Qing Huang), by yellow pan trap (BMNH, FAFU).
Description. Male (Figs 20–26). Body length: 0.54 mm.
Colour. Head yellow except occiput, and facial prominence brown, clypeus and malar space dark brown, and a dark brown stripe on occipital foramen; eyes dark red, ocelli red-brown (Fig. 21). Mandible brown. Antenna brown-yellow with scape mostly pale yellow; longitudinal sensilla on each flagellar segment dark brown (Fig. 24). Mesosoma yellow except pronotum, axillae and propodeum brown to dark brown, mid-lobe of mesoscutum anteromedially with a large dark brown patch; prosternum and mesopleuron dark brown (Fig. 20). Wings hyaline (Fig. 23). Legs mostly white, but hind coxae basally brown. Petiole brown, tergites and sternites of metasoma dark brown except apex of T7 brown-yellow (Fig. 20); genitalia with basal three-fourths dark brown and apical onefourth white (Fig. 26).
Head. Head slightly wider than mesosoma; frontovertex large, with two brown carinae starting from middle of vertex margin and, forming a V-shape, extending laterally to ocelli (Fig. 21). Maxillary palps short, 2-segmented, and labial palps 1-segmented. Mandibles with three teeth. Antennal formula 1:1:0:6; pedicel shorter than each flagellar segment; lengths of F1–F6, 44: 50: 47: 49: 50: 52; each flagellar segment with 5–7 longitudinal sensilla (Fig. 24).
Mesosoma. Mid-lobe of mesoscutum mostly with longitudinal hexagonal cells or reticulation, with 2+1+2 setae; side-lobe of mesoscutum with 1 seta, axilla with 1 seta; scutellum with placoid sensilla distantly placed, closer to fore pair than to hind pair of setae, distance between fore pair of scutellar setae slightly greater than that between hind pair (Fig. 25). Fore wing 2.69× as long as maximum width of wing disc; marginal fringe rather long, 0.42× as long as maximum width of disc; submarginal vein with 2 setae, anterior margin of marginal vein with 6 setae, basal cell with 1 seta; wing disc densely setose (Fig. 23); stigmal vein short, and postmarginal vein absent (Fig. 22). Tarsal formula 5: 5: 5.
Metasoma. Metasoma 1.67× as long as mesosoma; petiole with distinct sculpture; tergites 1–7 with setae as follows: T1, 0+0; T2–T4, 2+2 each; T5, 6; T6, 4 between cercal plates; T 7, 4 in one row. Genitalia without distinct digital lobes (Fig. 26).
Female (Figs 27–33). Detailed characters for the female are given in Huang & Polaszek (1998: 1939). Body rather flat and narrow. Head slightly wider than mesosoma; frontovertex large, with two brown carinae starting from middle of vertex margin and, forming a V-shape, extending laterally to ocelli (Fig. 28). Fore wing 2.72–2.82× as long as maximum width of wing disc, with narrow stigma, ciliation on disc unusual, consisting of scattered, very short setae with a rather large base (Fig. 30).
Species group placement. Not established.
Host. An unidentified diaspidid (Hemiptera: Diaspididae) scale on bamboo. Viggiani & Ren (1987) recorded this species from a diaspidid,? Bambusaspis sp.
Distribution. China (Fujian, Hainan, Guangdong).
description: Published as part of Wang, Zhu-Hong, Huang, Jian & Polaszek, Andrew, 2014, Two new species of Encarsia Förster (Hymenoptera, Aphelinidae) and first description of the male E. plana Viggiani & Ren from China, pp. 574-588 in Zootaxa 3889 (4) on pages 582-587, DOI: 10.11646/zootaxa.3889.4.5, http://zenodo.org/record/251497