Revision of Stenetra Masi, 1931 (Hymenoptera: Chalcidoidea: Pteromalidae) Author Tselikh, Ekaterina Author Burks, Roger text Zootaxa 2020 2020-04-02 4759 2 191 208 journal article 10.11646/zootaxa.4759.2.3 819b234f-6385-4412-a51b-d7a82f490ac4 1175-5326 3737407 A2B2B004-8F86-4245-B29F-5FE60C0B2870 Stenetra Masi, 1931 urn:lsid:zoobank.org:act: DA2B2137-4E98-42C1-A14F-966C3C705EB4 Stenetra Masi, 1931: 170 . Type species: Stenetra ligustica Masi, 1931 , by monotypy ( Holotype ♀ , MCSN, examined). Neolonchetron Szelényi, 1982 . Type species: Neolonchetron hungaricum Szelényi, 1982 , by monotypy ( Holotype ♀ , HNHM, examined). Synonymy by Bouček (1991: 205). Diagnosis. Body colour black, dark metallic green or blue, sometimes with diffuse coppery lustre ( e.g ., Figs 6 , 14 , 22 , 27, 40, 47, 60, 69, 77); fore wing with brownish tint. Head in dorsal view reticulate or alutaceous, clypeus radially striate; mesosoma distinctly reticulate; nucha of propodeum reticulate or alutaceous; metasoma weakly alutaceous and shiny. Head of female in dorsal view 2.0–2.6× as broad as long; scrobes absent; occiput without carina; lower margin of clypeus emarginate. Antennal formula 11263 ( e.g. , Figs 1 , 9 , 16 , 24, 41, 54, 63, 70), inserted above level of lower edges of eyes ( e.g. , Figs 3 , 12 , 18 , 28, 35, 49); both anelli transverse; F1 longer than broad ( e.g. , Figs 1 , 16 , 24, 41, 54, 63, 70), subquadrate or transverse ( e.g. , Figs 9 , 33 ), with 0–4 rows of dense sensilla, F2–F6 longer than broad; clava symmetric. Mandibular formula 4:4 ( e.g. , Fig. 49). Mesosoma usually moderately arched dorsally; pronotum without smooth and shiny carina, almost rounded in front; notauli deep and incomplete ( e.g. , Figs 4 , 11 , 38 , 46); scutellum with weak and shallow frenal line. Propodeum with median carina present only anteriorly, plicae absent or sharp, nucha short and convex, spiracles situated nearer to metanotum ( e.g. , Figs 5 , 15 , 20 , 31, 37, 43, 57, 66, 74). Petiole transverse. Fore wing with speculum; basal cell bare or pilose; veins not thickened ( e.g. , Figs 2 , 10 , 17 , 25, 34, 42, 53, 62, 71). Hind coxa in dorsal view bare; hind tibia with two spurs ( e.g. , Figs 44), sometimes second spur short. Metasoma lanceolate, longer than thorax and head ( e.g. , Figs 7 , 11 , 22 , 26, 28, 46, 60, 69, 77); Mt8 1.1–6.2× as long as broad; cerci with setae subequal in length. Distribution . Palearctic and Nearctic. Comments. Species of this genus are rare and few specimens are represented in collection material. Unfortunately, males and biology are not known for any of the species. Females can be distinguished from those of other Pteromalidae using the key of Bouček & Rasplus (1991) . One characteristic of the genus is that the antenna has two anelli, but there is a tendency towards reduction in the size of F1, such that it may resemble a third anellus, in some Palearctic species. In S. caucasica Tselikh sp. nov. F1 is transverse but with one row of dense longitudinal sensilla ( e.g ., Figs 9 ), whereas in S. khalaimi Tselikh sp. nov. F1 is so short that longitudinal sensilla are lost ( e.g ., Fig. 33 ).