Chrysis perfunctoria Rosa & Halada, 2025

Rosa, Paolo, Halada, Marek, Fateryga, Alexander V. & Proshchalykin, Maxim Yu., 2025, Contribution to the knowledge of the Uzbek cuckoo wasps (Hymenoptera, Chrysididae) with the first checklist and descriptions of new species, Zootaxa 5715 (1), pp. 331-399 : 367

Chrysis perfunctoria Rosa & Halada , sp. nov.

( Figs 4A–G )

Material examined. Holotype — ♂, Uzbekistan: USSR Uzbekistan Aktaš , 1100-1500m, Tashkent env., 24.V.1974, Jiří Niedl lgt. ( NMLU).

Diagnosis. Chrysis perfunctoria sp. nov. belongs to the rufitarsis group. The inclusion of C. perfunctoria sp. nov. in the rufitarsis group is justified by its nearly completely punctate face, obsolete to faint transverse frontal carina, long subantennal space, weak pit row and the shape of genital capsule. C. perfunctoria sp. nov. can be recognised from other species of the rufitarsis group by the following combination of characters: the third tergum is simple, with a continous apical margin, lacking both lateral teeth and emarginations on the lateral edges ( Fig. 4E ); the metasomal punctation is dense, but consists of very small and superficial punctures ( Fig. 4D ); the second sternum has large and suboval black spots ( Fig. 4G ). All other species from the Middle East and Central Asia shows different characters, such as a bidentate apical margin and a lateral edge with a distinct posterior emargination before the lateral teeth, as well as typically coarse, deep metasomal punctation.

Description. Holotype ♂. Body length 9.9 mm; anterior wing length 5.5 mm.

Head. Frons and ocellar area with dense, small (0.2–0.3× MOD) and subcontiguous punctures; vertex with sparse and double punctures ( Fig. 4A ); frontal carina weak, M-shaped but barely visible and recognisable by irregular punctures between carina and scapal basin; scapal basin deep below upper margin, medially impunctate, polished or slightly wrinkled toward clypeus; face, in frontal view, densely and finely punctate, each puncture bearing white short seta, pilosity only partially covering face and malar space; malar space finely and densely punctate; genal carina sharp, developed from middle eye to mandibular insertion; long subantennal distance 1.6× MOD; clypeal apex straight, slightly arcuate upward with narrow, dark brown rim; anterior ocellus with impunctate frontal area; posterior ocelli with lateral deep, black fovea, comma-like as long as ocellus length; posterior ocelli with polished laterally. OOL 2.4× MOD; POL 1.9× MOD; MS 1.1× MOD; relative length of P:F1:F2:F3 = 1.0:2.0:1.1:0.9. First flagellomere l/w = 3.2.

Mesosoma. Medial pronotal furrow wide, deep, reaching ¾ of pronotal length ( Fig. 4B ); pronotum with double punctures, medium sized (0.3–0.5× MOD); wide interspaces filled with dense small punctures (0.1× MOD); mesoscutum with similar double punctures, sparser medially, with polished and shining interspaces; notauli formed by deep, blue, subsquare foveae, partially confluent, and wider than larger punctures on mesoscutum; parapsidal signum deep and distinct; scutellum with similar sculpture, but medially more spaced, with shining interspaces; scutellar-metanotal suture deep, formed by longitudinally elongate foveae, with wide, enlarged median fovea covering more than half metascutal lenght; remaining metanotum densely and deeply punctate; posterior propodeal projections divergent and densely sculptured, with small punctures, wrinkles and crests; mesopleuron with weak episternal sulcus, only dorsally developed with small, subconfluent foveae, as large as one punctures on mesepisternum, fainting on ventral half towards scrobal sulcus ( Fig. 4C ).

Metasoma. Punctures on terga even, dense, shallow, with very small punctures denser on first tergum, sparser on second tergum laterally and apically; longitudinal median carina weak; third tergum with sparser punctures and dots on interspaces; small, round and shallow pits of pit row ( Fig. 4E ), laterally confluent forming a sulcus; apical margin continous, slightly angulate laterally, with narrow brownish rim; black spots on second sternum large, suboval, covering 3/4 of sternum length; spots medially separated by thin metallic line ( Fig 4G ). Genital capsule similar to other species of the rufitarsis group, wider with gonocoxa almost straight, its inner margin gently curved ( Fig. 4F ).

Colouration. Body entirely light green, metasoma with weak golden-reddish reflection; likely the species in nature might appear rosy or red and the colouration is later altered in collection, as in the case of some Chrysis and Spintharina species; legs greenish with golden reflections, tarsi brownish, with basitarsomere ligher; tegula metallic green; scape and pedicel green, flagellomeres dark brown.

Vestiture. Setae whitish and short (at least 1.0× MOD) dorsally; slightly longer (up to 1.5× MOD) on mesosoma laterally.

Female. Unknown.

Etymology. The specific epithet perfunctoria derives from the Latin adjective perfunctorius, which means superficial, and refers to the small and superficial sculpture of the metasoma.

Distribution. Uzbekistan.

Figures

FIGURE 4. Chrysis perfunctoria Rosa & Halada, sp. nov., holotype, male; A—head, frontal view; B, C—mesosoma, dorsal (B) and lateral (C) view; D, E, G—metasoma, dorsal (D), postero-lateral (E) and ventral (G) view; F— genital capsule.