Anastatus dexingensis Sheng & Wang, 1997

Peng, Lingfei, Tang, Lu & Gibson, Gary A. P., 2017, Redescription of the types of species of Anastatus Motschulsky, 1859 (Hymenoptera: Chalcidoidea: Eupelmidae) described by J. K. Sheng and coauthors, European Journal of Taxonomy 292, pp. 1-24 : 4-6

Anastatus dexingensis Sheng & Wang, 1997

Figs 1–7

Anastatus dexingensis Sheng & Wang in Sheng et al., 1997: 59–60 , figs 6–9.

Original type material designated

Holotype

CHINA: ♀, Dexing , Jiangxi Prov., Jun. 1984, YU Yunxiang leg.

Paratypes

CHINA: 4 ♀♀, same data as holotype.

Redescription

Female ( Figs 1–7 )

LENGTH. 2.5–3 mm.

COLOR. Head dark with metallic purple luster on frons and temple, gena and occiput metallic green; ocelli dark brown; maxillary and labial palpi dark brown to black ( Figs 2–3 ). Antenna ( Figs 3, 5 ) with scape yellowish-brown and pedicel dark brown with metallic purple luster (flagella missing but presumably dark based on original description). Pronotum ( Fig. 4 ) almost black, with purple and bluishgreen luster under some angles, except median groove dark brown; and posterolateral corner black anterior to spiracle. Mesoscutum ( Fig. 4 ) with anterior convex part of medial lobe black with metallic purple to green luster, posterior concave part with metallic greenish-blue luster; lateral lobe dark with metallic green luster. Scutellar-axillar complex ( Fig. 4 ) black with greenish-blue metallic luster. Tegula, acropleuron and prepectus dark brown ( Fig. 6 ). Front leg ( Fig. 7 ) with coxa and femur dark brown with metallic luster, tibia and basal two tarsomeres dark brown, apical three tarsomeres brown; middle and hind legs dark brown except mesotarsus and apex of metafemur brown. Metanotum and propodeum ( Figs 1, 4 ) dark brown. Gaster ( Fig. 1 ) dark brown to black with base whitish.

HEAD. In frontal view ( Fig. 3 ) about 1.1–1.3 × wider than high; in dorsal view ( Fig. 2 ) width 2 × length, hind margin concave; in lateral view about 1.85 × higher than long. Eye height 1.67 × eye length in lateral view; distance between eyes below 2.1–2.5 × distance between eyes above; malar space about 0.43 × eye height; distance between toruli 1.57 × as long as distance between torulus and clypeal edge, and 2.4 × distance between torulus and orbit; frontovertex narrower than eye. OOL: POL: LOL = 2.5: 7: 5.5. Vertex and frons reticulate with a few white setae; lower face reticulate-rugose, with dense lanceolate white setae (mostly broken), medially angulate; gena and parascrobal region reticulate; scrobes imbricate; interantennal region imbricate with dense white lanceolate setose. Scrobal depression ( Fig. 5 ) with scrobes shallow and channel-like, with lateral margin carinate ventrally but very weak dorsally, the dorsal margin not clearly delimited but dorsal-most limit of lateral margin 2.3 × diameter of anterior ocellus from ocellus. Lower orbit higher than ventral margin of torulus ( Fig. 3 ). Antenna with relative length (width) of scape = 42(6); pedicel 10(5); anellus 5(5).

BODY. Pronotum ( Fig. 4 ) in dorsal view obtuse-triangular, finely reticulate, concave postero-medially, and with few short setae along anterior margin of collar, only one short seta posteriorly anterior to each spiracle; median groove distinct. Mesoscutum ( Fig. 4 ) with anterior convex part of medial lobe V-shaped with sides almost uniformly convergent posteriorly, 0.76 × total length of mesoscutum, longer than broad, rugose-punctate with posteriorly directed setae, and posterior concave part strongly concave, coriaceous to finely reticulate, with some white hair-like setae; lateral lobe with inclined inner surface finely reticulate to strongly reticulate posteriorly. Scutellar-axillar complex ( Fig. 4 ) convex, coarsely punctate-reticulate, scutellum 1.5 × longer than broad. Acropleuron ( Fig. 6 ) with anterior one-third finely reticulate and with few short setae, posterior two-thirds finely strigose. Macropterous, fore wing ( Fig. 1 ) mostly missing, but apex extending beyond gaster (based on original description); basal plate bare; basal cell sparsely setose with thinner translucent setae than setae on disc; costal cell broken; submarginal vein with a row of six white setae; remaining part of disc with light brown infuscation and densely setose with thick light-brown setae except for white setae of hyaline cross-band; hyaline crossband not extending to junction of MV and STV, presumably curved; SMV: MV: PMV: STV = 33: 23: 11: 6 (paratype).

LEGS. Profemur ( Fig. 7 ) with ventral margin evenly arched basally, but with a sharp, tooth-like angulation in apical quarter. Middle leg with spur as long as basitarsus; tibia with apical pegs in a patch; basal four tarsomeres with black pegs on each side. Hind leg with basitarsus as long as following three tarsomeres combined.

GASTER ( Fig. 1 ). Shorter than mesosoma; ovipositor sheath not exserted.

Notes

Of the original type material, only one labeled female and one unlabeled female were found. The labeled female, here considered to be the holotype, has three labels: “Dexing, Jiangxi, host: egg of Dendrolimus kikuchii ”, “1984, YU Yunxiang”, and “ Anastatus dexingensis sp. nov. Det. Sheng Jinkun”. The holotype lacks both antennae beyond the pedicels, the left protibia, the left protarsus, both left wings and the right hind wing; the right fore wing is only partially preserved. The unlabeled female, here considered to be a paratype, lacks both antennae beyond the anelli, the hind wings, the front legs (lost accidently when the first author examined the specimen), the right protibia and protarsus; both fore wings are only partially preserved.

Remarks

The most important characters of females of this species are as follows: 1) profemur ventrally with a sharp tooth at apical quarter ( Fig. 7 ) (not at apical third as stated in original description); 2) scrobal depression with scrobes shallow, lateral margin very weak dorsally ( Fig. 5 ); 3) mesoscutum with less setae and with a different pattern ( Fig. 4 ) than for A. shichengensis ( Fig. 45 ), and with anterior convex part of medial lobe V-shaped; 4) posterior concave part of mesoscutum very short, only one-quarter the length of the scutellum ( Fig. 4 ). The paratype originally had its left front leg, and the tooth of the profemur was clearly evident, but the leg was lost accidently when the first author examined the specimen. In the key of Kalina (1981), A. dexingensis keys out to A. splendens , but in A. splendens the posterior concave part of mesoscutum is as long as the scutellum ( Nikol’skaya 1952), and the profemur is not toothed.

Figures

Figs 1–7. Anastatus dexingensis Sheng & Wang, 1997. 1–6. Holotype, ♀. 1. Body, dorsal view (wing mostly destroyed, remnants superficially appear like a short wing). 2. Head, dorsal view. 3. Head, frontal view. 4. Mesosoma, dorsal view. 5. Head, frontolateral view. 6. Mesosoma, lateral view. – 7. Paratype, ♀, front legs.

Figs 41–48. Anastatus shichengensis, ♀. 41–46. Holotype. 41. Body, lateral view. 42. Head, frontal view. 43. Body, dorsal view. 44. Head, lateral view. 45. Mesosoma, dorsal view. 46. Head, frontolateral view. – 47–48. Paratype. 47. Front leg (the tooth is arrowed). 48. Apex of mesotibia and mesotarsus.