Anastatus (Anastatus) gansuensis Chen and Zang, 2019

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 : 377-379

publication ID 10.11646/zootaxa.4767.3.1

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Anastatus (Anastatus) gansuensis Chen and Zang, 2019


Anastatus (Anastatus) gansuensis Chen and Zang, 2019

Figs 12 View FIGURE 12 , 13 View FIGURE 13

Anastatus (Anastatus) gansuensis Chen and Zang, in Chen et al. 2019: 117–126 View Cited Treatment , figs 2, 3A–E, 4.

Diagnosis. Female. Macropterous ( Figs 12B, H View FIGURE 12 ). Fore wing ( Fig. 12H View FIGURE 12 ) with hyaline cross band behind marginal vein complete and with entirely white setae or with a few isolated dark setae within band medially ( Fig. 12I View FIGURE 12 ); infuscate region basal of hyaline band often with region of paler, more orangish setae anterior of medial fold than dark brown setae elsewhere ( Figs 12H, I View FIGURE 12 , 13A View FIGURE 13 ); basal region with basal cell, mediocubital fold and cubital and vanal areas uniformly setose, though at least basal cell with comparatively inconspicuous white setae ( Fig. 13A View FIGURE 13 ). Head ( Fig. 12C View FIGURE 12 ) with scrobal depression separated from anterior ocellus by distance slightly less than longitudinal diameter of ocellus. Antenna ( Figs 12B, D, E View FIGURE 12 ) with all funiculars beyond fl1 longer than wide. Mesosoma dark except prepectus and pronotum or at least lateral surface of pronotum pale ( Figs 12A, G View FIGURE 12 ); procoxa pale, similar in colour to lateral surface of pronotum ( Fig. 12G View FIGURE 12 ); mesotibial apical spur pale ( Fig. 13B View FIGURE 13 ); mesotarsus with at least basal four tarsomeres similarly pale as mesotibial apical spur ( Fig. 13B View FIGURE 13 ). Mesoscutum ( Fig. 12F View FIGURE 12 ) with convex anterior part of medial lobe entirely punctate-reticulate; with posterior concave part of mesoscutum comparatively narrowly setose with white setae medially, the width of setose region about equal to width of bare region on either side; mesoscutal lateral lobe with bare, minutely mesh-like-coriaceous band anterior of posteromedian carina relative to larger-sized coriaceous-alutaceous sculpture on outer inclined surface ( Fig. 12F View FIGURE 12 ). Profemur with ventral margin evenly curved, without distinct angulation or tooth apically (cf. Fig. 1H View FIGURE 1 ).

MALE. Antenna ( Figs 13D, G View FIGURE 13 ) with scape extensively yellow but dark dorsoapically with metallic luster; pedicel dark; flagellum uniformly dark such that multiporous plate sensilla not contrasting conspicuously in colour with surrounding cuticle ( Fig. 13G View FIGURE 13 ), and consisting of clava and seven funiculars, with at least fl6 and fl7 obviously lon- ger than wide, and clava distinctly shorter than combined length of fl6–fl8 ( Fig. 13G View FIGURE 13 , insert). Head ( Fig. 13C View FIGURE 13 ) with frons mesh-like coriaceous to pustulate. Mesopleurosternum uniformly dark ( Fig. 13F View FIGURE 13 ). Front leg with trochanter and trochantellus variably pale to dark, femur mostly dark except narrowly apically, and tibia and tarsus pale except apical tarsomere sometimes variably dark brown; middle leg similar in colour to front leg except trochanter often dark in contrast to pale trochantellus, femur sometimes somewhat more extensively pale anteroapically, and apical tarsomere often variably dark brown; hind leg often with both trochanter and trochantellus pale, femur entirely dark, tibia mostly dark, basally pale for distance at most equal to about apical width or about one-quarter length of tibia, and tarsus with at least basal four tarsomeres pale ( Fig. 13D View FIGURE 13 ). Fore wing ( Fig. 13H View FIGURE 13 ) with costal cell dorsally setose along entire leading margin ( Fig. 13H View FIGURE 13 ); basal cell uniformly setose with dark setae ( Fig. 13H View FIGURE 13 ); disc with variably wide but distinct, oblique speculum ( Fig. 13H View FIGURE 13 ), the dorsal bare dorsal region often up to about 3× as high as wide or appearing narrow because partly obscured anteriorly and/apically by underlying setae on ventral surface ( Fig. 13H View FIGURE 13 : left-directed arrows point to setae on dorsal surface delineating apical margin of speculum), and closed posteriorly by line of dark setae.

Species concept. Our concept of A. gansuensis is based on examination of the type material of the species as given in Chen et al. (2019).

Regional records. Non-type material examined. None.

Distribution. PALAEARCTIC: China (Gansu) ( Chen et al. 2019).

Hosts. LEPIDOPTERA . Saturniidae : Antheraea pernyi (factitious host) and Caligula japonica ( Chen et al. 2019) .

Remarks. Chen et al. (2019) described A. gansuensis as one of four species reared from the eggs of C. japonica , and subsequently cultured on the eggs of Antheraea pernyi . Females are most similar to those of Anastatus fulloi and A. orientalis , but are differentiated by the features given in our key. Chen et al. (2019) keyed males of A. gansuensis next to those of A. meilingensis , and differentiated both from males of A. japonicus and A. fulloi by length of the clava relative to the apical funiculars, and from each other by colour pattern of the metatibia.

We cannot confidently differentiate A. gansuensis from A. shichengensis males and therefore key them out together. However, observed A. gansuensis males typically have a somewhat narrower, more distinctly oblique-slen- der speculum (cf. Fig. 11H View FIGURE 11 : spc) or one that at least superficially looks smaller than the speculum of A. shichengensis males because setae on the ventral surface underlie the dorsally bare region anteriorly and/or apically ( Fig. 13H View FIGURE 13 : left-directed arrows point to setae on dorsal surface delineating apical margin of speculum). The very few males of A. shichengensis examined have a variably distinctly larger, more quadrangular speculum with setae on the ventral surface only near the parastigma ( Fig. 24I View FIGURE 24 : spc). However, this is a relative feature and species limits need to be accessed with additional material of both species.














Anastatus (Anastatus) gansuensis Chen and Zang, 2019

Peng, Lingfei, Gibson, Gary A. P., Tang, Lu & Xiang, Jiawei 2020

Anastatus (Anastatus) gansuensis Chen and Zang, in Chen et al. 2019: 117–126

Chen, Y. M. & Gibson, G. A. P. & Peng, L. F. & Iqbal, A. & Zang, L. S. 2019: 126