Chrysis pavesii Rosa, 2017

Rosa, P., Proshchalykin, M. Yu., Lelej, A. S. & Loktionov, V. M., 2017, Contribution to the Siberian Chrysididae (Hymenoptera). Part 1., Far Eastern Entomologist 341 (341), pp. 1-44 : 27-29

Chrysis pavesii Rosa , sp. n.

Figs 13A, C , 15A–F

SPECIMENS EXAMINED. Holotype – ♀: Russia, Altai Rep., 5 km SE

Chagan-Uzun, Tudtuyaryk River, 50°04,367’N 88° 25,193°E, 1780m, 11.VII 2016

( MP, VL) [ZIN]. Allotype – ♂, same data as holotype [ZIN].

DIAGNOSIS. Chrysis pavesii sp. n. belongs to the bihamata species-group. It’s a medium sized species (7.5–8.0 mm long), closely related to Ch. sibirica Rosa , sp. n.

It is separated by body coloration (fully metallic green); different body sculpture with shining interspaces, shallower, more scattered punctures; general habitus slender (see Fig. 13 ); mandible with faint inner tooth ( Fig. 15A ); mesopleuron with episternal sulcus complete ( Fig. 15B ); female T3 apical margin with lateral corner

( Fig. 15E ); for others diagnostic characters see diagnosis of Ch. sibirica sp. n.

DESCRIPTION. Body length 7.5–8.0 mm. Fore wing length 5.0 mm. Female.

OOL = 2.1 MOD; POL = 2.3 MOD; MS = 1.2 MOD; relative length of P: F1: F2:

F3 = 1.0: 1.8: 0.8: 0.7.

Head. Vertex and frons with small (about 0.2–0.3 MOD) and contiguous punctures; with two large (1–3 PD apart) impunctate areas close to posterior ocelli, and polished interspaces; TFC almost straight ( Fig. 15A ); area between TFC and midocellus slightly sunken; scapal basin broadly polished in the third across; medially polished (about 2 MOD width) in the lower two thirds and laterally punctate;

subantennal space about 1.0 MOD.

Mesosoma. Pronotal groove shallow, broad and longer than half pronotal length;

pronotum with relatively small, even and equally spaced punctures, with small punctures on interspaces; mesoscutum with small and shallow punctures, about 1 PD

apart, with polished and shining interspaces; mesoscutellum with irregular small punctures, about 1 PD apart, with polished and shining interspaces as well; metanotum with large anteromedial half-circle fovea; propodeal teeth slightly divergent to subparallel; mesopleuron with complete episternal sulcus, with subrectangular foveae, larger than surrounding punctures ( Fig. 15B ).

Metasoma. Punctuation on T1 geminate, with small punctures widely separate

(1–2 PD apart), and tiny dots on interspaces; T2 basally with larger irregular punctures, geminate, partly corrugate and contiguous (seen in dorso-lateral view)

( Fig. 15D ); laterally and posteriorly with simple, shallow, widely separate punctures; T3 basally with corrugate, irregular punctures, smaller before pit row; with small punctures between pit row and apical margin; pit row with small, shallow pits. Apical margin weakly undulate, with blunt lateral corners.

Coloration. Body entirely metallic green, with golden reflection on TFC and somewhere ventrally on metasoma. Tegulae brown, with slightly metallic reflections at base; tarsi brown; scape metallic, rest of antenna black (pedicel metallic in male). Wings hyaline.

lateral view; C – metasoma, dorsal view; D – metasoma, postero-lateral view; E – metasoma,

posterior view; F – metasoma, ventral view. Scale bar = 1.0 mm.

Vestiture. Body with whitish, long, erect setae (up to 2.0 MOD), longer laterally.

Male. Similar to female, scapal basin fully micropunctate, with silvery setae;

tegulae metallic green; apical margin of T3 with slight undulations.

DISTRIBUTION. Russia (Altai Rep.).

ETYMOLOGY. The specific epithet pavesii is dedicated to Maurizio Pavesi

(Milano, Italy), renowned entomologist and excellent connoisseur of cuckoo-wasps,

who kindly reviewed this article and supported the research activity of P. Rosa with materials and precious suggestions.

Figures

Fig. 13. Habitus, dorsal view. A, C – Chrysis pavesii Rosa, sp. n.: A – holotype ♀; C –

Fig. 15. Chrysis pavesii Rosa, sp. n., holotype ♀: A – head, frontal view; B – mesosoma,