Contribution to the Siberian Chrysididae (Hymenoptera). Part 1. Author Rosa, P. Author Proshchalykin, M. Yu. Author Lelej, A. S. Author Loktionov, V. M. text Far Eastern Entomologist 2017 2017-09-22 341 341 1 44 http://dx.doi.org/10.25221/fee.341.1 journal article 10.25221/fee.341.1 2713-2196 7163677 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. Fig. 15. Chrysis pavesii Rosa , sp. n. , holotype ♀: A – head, frontal view; B – mesosoma, 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.