Boucekinus tatianae Janšta & Hanson, 2011

Janšta, Petr, Vilímová, Jitka & Hanson, Paul, 2011, Description of a new genus, Boucekinus (Hymenoptera: Chalcidoidea: Torymidae), with two new species and a discussion of its placement, Zootaxa 2762, pp. 49-55 : 53-55

Boucekinus tatianae Janšta & Hanson , sp. nov.

Figs 2–3 , 10–17

Examined material. Holotype female labeled “ COSTA RICA: Heredia, OTS-La Selva, 100m, stem gall on Anemopaegma chrysoleucum , iv.2002, P. Hanson”. Deposited in USNM. Paratypes (two females, one male) with the same labels as holotype (1 female, 1 male in USNM, 1 female in MZCR).

Etymology. tatianae (Latinized, noun) = genitive singular, feminine, named in honor of Taťána Bouċek, wife of Zdeněk Bouċek and Petr Janšta´s adoptive grandmother.

Diagnosis and identification. Ventral margin of clypeus well developed and produced ( Fig. 11 ), F4–F7 more or less transverse, only F1–F3 longer than broad ( Fig. 10 ), midlobe of mesoscutum smooth only in posterior onequarter, frenum reticulate, propodeum without submedian carinae ( Figs 12, 13 ), postmarginal vein long, nearly 3X as long as stigmal vein ( Fig. 15 ), only Gt2–Gt4 with posteromedian emargination, ovipositor nearly twice as long as rest of body ( Fig. 2 ).

Description. FEMALE. Holotype. Length of body 2.3 mm, length of ovipositor 4.3 mm. Head, scape, pedicel, mesosoma and hind coxae dark with blue-green metallic tint. Flagellum, tegula, fore and mid coxae, all femora and tibiae and gaster, including ovipositor sheaths, brown. Tarsomeres 1, 2 and 5 pale brown, 3 and 4 yellow. Wings hyaline, wing veins and setae brown.

Head. 1.1X as broad as high; 1.9X as broad as long; 1.3X broader than mesoscutum in its widest part in dorsal view; HTE: LTE = 1.4; HTE:MSP = 3. Temples short, 0.2X LTE. Ventral margin of clypeus slighty produced and slightly emarginate in middle ( Fig. 11 ). Mouth 2X length of MSP. Scape 7X as long as width of its basal part, curved along whole length ( Fig. 14 ). Antennal segments with relative measurements = 22:4:1:11:8:8:8:7:6:6:14; pedicel 1.3X, anellus 0.3X, F1 2.2X, F2 1.3X, F3 1.3X, F4 1.6X, F5 1.0X, F6 0.9X, F7 0.9X and clava 2X as long as broad. Ocelli relatively large, POL 1.6X OOL, the latter 0.9X OD ( Fig. 10 ).

Mesosoma. Mesonotum 2.1X as long as broad. Dorsal part of pronotum 1.4X as broad as long, with irregularly serrate sculpture, lateral panels of pronotum and the posterior part of pronotum more or less smooth or at most with alutaceous sculpture; pronotum flat, without differentiated collar. Mesoscutum 1.4X as broad as long, with reticulate sculpture except posterior one-quarter of midlobe smooth, and disc of lateral lobes alutaceous. Axillae alutaceous. Scutellum 1X as broad as long; conspicuously reticulated with reticulations smaller and more abundant in proximal part ( Fig. 12, 13 ). Propodeum smooth and mostly shiny with only inconspicuous rugosity in middle, and one row of foveae anteriorly and posteriorly. Mid tibia with spur relatively long, 2X width of tibia. Hind tibia with longer spur 1.9X shorter spur. Forewing 2.9X as long as wide; relative measurements, marginal:postmarginal:stigmal veins = 36:7:2.5; stigmal vein short, but uncus twice as long as in B. masneri ; venation pale brown ( Fig. 15 ).

Metasoma. A little longer than mesosoma; gaster 1.5X as long as high. Gt2–Gt4 deeply emarginate. Hypopygium 0.9X as long as gaster. Ovipositor 4.3X as long as gaster, ovipositor index 5.7 ( Fig. 2 ).

MALE. Length of body 2.0 mm. Similar to female except as follows: funicular segments inconspicuously pedicellate ( Figs 16, 17 ), flagellar segments more transverse, relative measurements = 18:3.5:1:11:9:9:8.5:7:7:6:16; pedicel 1.2X, anellus 0.5X, F1 2.2X, F2 1.5X, F3 1.4X, F4 1.2X, F5 1.0X, F6 1.0X, F7 0.9X and clava 2.5X as long as broad. POL 2.7X OOL, the latter 0.9X OD. Legs with femora stouter, mid tibial spur 1.8X width of tibia. Forewing 2.5X as long as wide. Gaster 2.1X as long as high, all tergites without emargination on posterior margin.

Variation. One paratype female (USNM) is darker, with the scape, pedicel, gaster and legs dark brown. All measurements are the same as in the holotype except the following: length of body 2.5 mm, length of ovipositor 4.5 mm, head 1.2 as broad as high, HTE:MSP = 2.7, forewing 2.9 as long as wide, ovipositor 4.7X as long as metasoma, ovipositor index 5.8.

Biology. The specimens were reared from galls on Anemopaegma chrysoleucum (Bignoniaceae) induced by an undetermined (probably undescribed) species of Cecidomyiidae (Diptera) . The galls consisted of swellings of the stem, petiole, midvein, and tendrils; each gall was about 10 mm long and 4–7 mm wide, and there were often a long series of galls (like a string of pearls). Because no other parasitoids were reared from these galls B. tatianae is presumably a primary parasitoid the cecidomyiid larvae and/or pupae.

Distribution. Costa Rica.

Figures

FIGURES 1 – 3. Habitus in lateral view. 1, Boucekinus masneri, female; 2, Boucekinus tatianae, female; 3, B. tatianae, male.

FIGURES 10 – 17. Boucekinus tatianae. 10, Ψ antenna, lateral view; 11, Ψ head, frontal view; 12, Ψ head and mesosoma, dorsal view; 13, Ψ mesosoma, dorsal view; 14, Ψ head, antenna and part of mesosoma, lateral view; 15, Ψ forewing, dorsal view; 16, ♂ antennae, lateral view; 17, ♂ antenna and head, lateral view.