Anastatus (Anastatus) pariliquadrus Peng and Tang

Peng, Lingfei, Gibson, Gary A. P., Tang, Lu & Xiang, Jiawei, 2020, Review of the species of Anastatus (Hymenoptera: Eupelmidae) known from China, with description of two new species with brachypterous females, Zootaxa 4767 (3), pp. 351-401: 392-394

publication ID 10.11646/zootaxa.4767.3.1

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Anastatus (Anastatus) pariliquadrus Peng and Tang

new species

Anastatus (Anastatus) pariliquadrus Peng and Tang   , new species 7D8E7417-5817-4268-BD3A-683845910780

Fig. 22 View FIGURE 22

Material examined. Holotype ♀ ( FAFU). “ CHINA: Chebaling, Shaoguan, Guangdong Province | 25.v.2002 | LIU Changming / Holotype ”.  

Paratypes 2♀ ( FAFU), CHINA: same data as holotype.

Description of holotype. FEMALE. Body length excluding ovipositor sheath 2.75 mm.

Head ( Figs 22A, F, H View FIGURE 22 ) primarily bright bluish-green. Head in frontal view ( Fig. 22F View FIGURE 22 ) 1.58× wider than high; frons coriaceous-granular, parascrobal region rugose, with two rows of hair-like setae; interantennal region transversely reticulate-imbricate, with hair-like setae; lower face reticulate rugose, and medially angulate, with white hair-like to very slightly lanceolate setae; scrobal depression with scrobe deep, lateral margin strongly carinate, dorsally separated from anterior ocellus by distance equal to longitudinal diameter of anterior ocellus; distance between eyes below 2.0× distance between eyes above, lower orbit in line with ventral margin of torulus; distance between toruli 1.26× distance between torulus and clypeal edge, and 2.1× distance between torulus and orbit. Head in dorsal view ( Fig. 22A View FIGURE 22 ) with width 1.95× length, with interocular distance about 0.3× head width and less than width of eye; vertex transversely reticulate to strigose, with long brown lanceolate setae. Head in lateral view ( Fig. 22H View FIGURE 22 ) almost square, with vertex almost straight, face evenly convex, 1.14× higher than long; gena reticulate, with white hair-like setae; eye height 1.31× eye width in lateral view; malar space 0.26× eye height; distance between a posterior ocellus and inner orbit: distance between posterior ocelli: distance between the anterior and a posterior ocellus: maximum diameter of a posterior ocellus = 3: 5: 4.7: 3. Antenna ( Figs 22D, F View FIGURE 22 ) with scape yellowish-brown, pedicel slightly darker than scape and with purple metallic luster, flagellum dark brown, scape 0.35 mm; relative length(width) of scape = 35(4); pedicel 9(4); first to eighth funiculars: 5(4), 11(4), 11.5(4), 13(6), 11(6), 10(6.5), 9(7), 8(7); clava 19(10). Maxillary and labial palpi brown to dark brown.

Pronotum ( Fig. 22E View FIGURE 22 ) yellowish-brown with purple metallic luster under some angles of light, except spiracular rim very dark brown; in dorsal view pentangular, weakly coriaceous, divided medially, slightly concave in middle of disc, setae pale. Mesoscutum ( Fig. 22E View FIGURE 22 ) with posterior concave part brown with purple metallic luster under some angles of light, but otherwise paler yellowish-brown; anterior convex part of medial lobe teardrop-shaped, 0.63× total length of mesoscutum, coarsely punctate-reticulate with white hair-like setae; posteriorly concave part of mesoscutum smooth, and with white, laterally directed setae; lateral lobe with inclined inner surface slightly coriaceous, with white setae along lateral margin. Scutellar-axillar complex ( Fig. 22E View FIGURE 22 ) convex, brown, coarsely punctate-reticulate, scutellum 2.0× longer than broad. Brachypterous; fore wing ( Figs 22E, G View FIGURE 22 ) 0.5 mm in length, blade like, acutely angled apically; disc hyaline, sparsely setose with hyaline setae, apical third with pale yellow setae. Tegula yellowish-brown ( Fig. 22E View FIGURE 22 ). Mesopleurosternum ( Fig. 22C View FIGURE 22 ) with mesopectus brown, finely meshlike reticulate, with white hair-like setae; acropleuron yellowish except about posterior 1/3 brown, and with fine longitudinally aligned coriaceous sculpture. Metanotum and propodeum brown ( Fig. 22E View FIGURE 22 ); propodeum with plical depression U-shaped, plical region sublinear medially ( Fig. 22E View FIGURE 22 ). Legs ( Fig. 22B View FIGURE 22 ) yellowish-brown except dorsal margin of femora and tibiae brown and mesotarsal pegs black; ventral margin of profemur evenly arched, not toothed; mesotibial apical spur pale, slightly shorter than basitarsus; mesotarsus with all tarsomeres pale in contrast with dark mesotarsal pegs; hind leg with basitarsus slightly shorter than following three tarsomeres combined.

Gaster ( Figs 22A, B View FIGURE 22 ) mostly dark brown with metallic luster under some angles, and base partly yellowishbrown; apex of syntergum and ovipositor yellowish-brown, gaster longer than mesosoma, finely reticulate; ovipositor not exserted.

MALE. Unknown.

Variation. The female paratypes are mostly similar to the holotype except the scrobal depression is separated from the anterior ocellus by a distance equal to 1.2× the longitudinal diameter of the anterior ocellus.

Etymology. The species name is derived from the Latin words ‘ parilis ’ (like, similar) and ‘ quadrus ’ (square), in reference to the head being subquadrate in lateral view.

Host. Unknown.

Distribution. ORIENTAL: China (Guangdong).

Remarks. This new species is one of four species known from China with short-winged females ( Fig. 22G View FIGURE 22 ). Females resemble those of A. meilingensis   , but are differentiated easily by the shape and sculpture of the anterior convex part of the mesoscutum. The reduced fore wings of A. pariliquadrus   females are acutely angled apically, lack a hyaline cross band, and have strongly reduced stigmal and postmarginal veins, whereas the other three species with short-winged females all have the fore wings rounded apically with a distinct hyaline cross band ( Figs 7F View FIGURE 7 , 14H, I View FIGURE 14 ) or are truncate apically with at most a remnant of a cross band ( Fig. 18F View FIGURE 18 : cbr).