Chartocerus niger ( Ashmead, 1900 )

Chartocerus niger ( Ashmead, 1900) View in CoL

Figs 10–19 View Figures 10–19

Signiphora nigra Ashmead, 1900: 410. ♀, USNM, not examined. View in CoL

Thysanus niger (Ashmead): Armitage 1923: 513. View in CoL

Chartocerus niger (Ashmead): Rosanov 1965: 878; Woolley 1988: 492; Abd-Rabou and Evans 2016: 146. View in CoL

Material examined.

• 2 ♀, Yunnan Province; Xishuangbanna; Mengla County; Menglun Town ; 21°53.89'N, 101°16.72'E; 568 m a. s. l.; 12 May. 2019; Z.-l. Bai, Z.-g. Chen, C. Wang, H. Yu leg.; LFNU Sc 20210704 , Sc 20210705 [on slides] GoogleMaps .

Diagnosis.

Body black; fore wing (Fig. 16 View Figures 10–19 ) infuscate basally with a transverse hyaline area; clava 4.7 × as long as wide; fore wing 2.9 × as long as wide, with longest setae of marginal fringe 0.3 × as long as width of disc, seta M 1 absent; hind wing (Fig. 17 View Figures 10–19 ) 4.0–4.3 × as long as wide, bearing a seta posterior to the apex of marginal vein, posterior margin slightly rounded; Mt 1 (Fig. 15 View Figures 10–19 ) with posterior margin concave medially.

Description.

Female (Figs 10 View Figures 10–19 , 11 View Figures 10–19 ). Body length 0.6–0.8 mm.

Colour. Generally similar to C. menglaensis . Fore wing infuscate basally, with a transverse hyaline area as in Fig. 15 View Figures 10–19 ; hind wing hyaline.

Head (Fig. 12 View Figures 10–19 ). In frontal view, height as long as width, mostly smooth, with weakly lineolate sculpture on lower face. Vertex 0.7 × the width of head. Eye 0.5 × as high as head. Mandible with two teeth. Antenna (Fig. 13 View Figures 10–19 ) with four anelli; scape 3.8–3.9 × as long as wide; pedicel 2.1–2.4 × as long as wide; clava 4.7 × as long as wide, 1.8–2.3 × as long as scape.

Mesosoma (Fig. 14 View Figures 10–19 ). Pronotum, mesoscutum, and anterior of metanotum transversely imbricate; lateral sides of mesoscutellum and axillae reticulate. Mesoscutum 3.0 × as long as mesoscutellum, with 10 setae posteriorly, and a pair of long setae near posterolateral corner. Mesoscutellum with 7 setae along posterior margin, the distance of scutellar sensilla 0.3 × the anterior width of mesoscutellum. Metanotum a little shorter than mesoscutellum. Mesopostphragma extending to posterior of Mt 4.

Wings. Fore wing (Fig. 16 View Figures 10–19 ) 2.9 × as long as wide, with longest setae of marginal fringe 0.3 × as long as width of disc, seta M 1 absent. Hind wing (Fig. 17 View Figures 10–19 ) 4.0–4.3 × as long as wide, bearing a seta posterior to the apex of marginal vein, posterior margin slightly rounded, with longest setae of marginal fringe 0.4 × wing width.

Leg. Mid leg (Fig. 18 View Figures 10–19 ) with basitarsus 0.5 × as long as tibia, and basitarsus obviously longer than (1.2–1.4 × as long as) mesotibial spur, mesotibial spur with 6 teeth.

Metasoma. Mt 1 (Fig. 15 View Figures 10–19 ) with median portion concaved upward. Ovipositor (Fig. 19 View Figures 10–19 ) originating from anterior of Mt 3, 2.5 × as long as mesotibia, 1.7 × as long as metatibia. Third valvula 1.0 × as long as mesobasitarsus.

Hosts.

Unknown from this study; see UCD (2025) for detailed records.

Distribution.

China ( Yunnan) [ new record], Russia, France, Italy, Spain, North Africa, Egypt, USA, Antilles, Argentina, Bermuda, Brazil, Jamaica, Puerto Rico ( UCD 2025; Abd-Rabou and Evans 2016).

Comments.

The materials fit well with the description of C. niger by Abd-Rabou and Evans (2016). This is the first report of this species from oriental region and the Chinese fauna. Due to the original and subsequent description of the species were quite simple, here we provide more morphological information and some digital photographs for reference.