Fidiobia pronotata Szabo , 1958

Popovici, Ovidiu Alin, Masner, Lubomir, Lahey, Zachary & Talamas, Elijah, 2022, Revision of the Palearctic species of Fidiobia Ashmead (Hymenoptera, Platygastroidea), Journal of Hymenoptera Research 92, pp. 23-144 : 23

18. Fidiobia pronotata Szabo, 1958

Figs 170-176 , 177-180 , 284 , 315

Fidiobia pronotata Szabó, 1958: 459; Kozlov 1978: 656; Kozlov 1987: 1199; Masner and Huggert 1989: 69. Evans and Peña 2005: 62; Popovici and Buhl 2010: 1155.

Description.

Female. Body length: 0.9-1.0 mm. Colour of body: bicoloured, head and mesosoma black, metasoma brown (Figs 170 , 171 ).

Head (Figs 172-174 ). Colour of head: black. Sculpture of head: areolate-rugulose. Sculpture of occiput: areolate-rugulose. Ocellar prominence: absent. Preocellar depression: absent. Paraocellar depressions: absent. OOL / ocellar diameter: OOL equal with ocellar diameter. Orientation of lower half of inner orbits: visibly divergent. Sculpture of frons immediately anterior to ocellus: reticulate-coriaceous. Sculpture of frons immediately dorsal to toruli: areolate-rugulose, but more transverse. Epitorular carina: absent. Distance between toruli: toruli touch each other. Setation of clypeus: two setae. Malar sulcus: absent. Antenna (Fig. 175a ). Colour of A1: yellow. Colour of clava: striking different from the rest of the antenna (clava brown, rest of antenna yellow). Number of antennomeres: nine. Shape of A1: more or less cylindrical. Ventral (inner) lamella on A1: present as a trace in the apical part of A1. Length of A3 of female: distinctly shorter than A2. Sensillar formula (A7:A8:A9): 2:2:1 (Fig. 175b ).

Mesosoma (Figs 170 , 171 , 178 ). Colour of mesosoma: black. Mesosoma: weakly compressed dorsoventrally. Pronotum in dorsal view: cervical pronotal area broader than lateral shoulders. Transverse pronotal sulcus: present as a narrow groove along anterior rim of pronotum. Posteroventral end of transverse pronotal sulcus: dilated. Lateral pronotal area: entirely sculptured. Antero-admedian line: absent. Mesoscutum: weakly convex. Parapsidal lines: absent. Sculpture of internotaular area: absent. Notauli: present, incised. Shape of notauli: dilated posteriorly and rounded anteriorly. Outer edge of notauli: almost collinear with axillular carina. Orientation of inner edge of notauli: converging posteriorly. Length of notauli: more than half of length of mesoscutum, measured along midline. Length of notaulus / maximum width of notaulus: at most 1.9 times as long as maximum width. Distance between notauli: greater than the broadest part of notaulus. Transscutal articulation: complete. Scuto-scutellar sulcus: absent. Fovea on scuto-scutellar sulcus: NA. Mesoscutellum: weakly convex. Shape of mesoscutellum: subrectangular. Axillular carina: posterior apex of axillular carinae touching the posterior edge of mesoscutellum. Axilloaxillular carina: present. Sculpture of mesoscutellum: absent. Posterior mesoscutellar sulcus: absent. Metascutellum: not visible, covered by mesoscutellum. Metascutellar carina: absent. Width of metasomal depression: greater than the length of lateral propodeal carina. Median carina between lateral propodeal carinae: absent. Transverse carina between lateral propodeal carinae: present. Foamy structure on transverse carina between lateral propodeal carinae: absent. Foamy structure on metasomal depression: absent. Lateral propodeal carinae: parallel. Foamy structure on lateral propodeal carina: absent. Plica: visible. Posterior end of plica: fused with metapleural carina. Foamy structure on plica: absent. Foamy structure on metapleural carina: absent. Foamy structure on ventral metapleural area: absent. Setation of dorsal metapleural area: dense, long setae on entire surface, uniformly distributed. Setation of ventral metapleural area: dense, long setae on the entire surface, uniformly distributed. Longitudinal striation on dorsal mesopleuron: present. Transepisternal line: visible as a superficial depression on the anteroventral mesopleuron. Mesopleural carina: present. Metapleural sulcus: absent. Wings. brachypterous. Apex of fore wing (Fig. 176 ): acuminate. Colour of fore wing: transparent. Transverse brown band on fore wing: absent. Submarginal vein in fore wing: absent. Length of submarginal vein in fore wing: unknown. Spectral veins on fore wing: absent. Marginal setae of fore wing: absent. Disc of fore wing: with spinulose microtrichia. Legs. Colour of fore tibia: yellow. Colour of fore tarsus: yellow. Colour of middle femora: yellow. Colour of middle tibiae: yellow. Colour of middle tarsus: yellow. Colour of hind femora: yellow. Colour of hind tibiae: yellow. Colour of hind tarsus: yellow.

Metasoma (Figs 170 , 178 ): Tergites posterior of T2 may be retracted under T2. Shape of T1: trapezoidal. Colour of T1: reddish brown. Lateral setae of T1: 2 pairs. Colour of T2: brown. Shape of T2: longer than wide. Anterior pits of T2: distinctly separated. Sculpture of T2, lateral to anterior pits of T2: absent. Colour of T3-T6: the same as T2.

Male. unknown.

Material examined.

11♀. France : 1♀, Côte-d’Or, Esbarres , 47.102°N, 5.229°E, 1.ix.1948, leg. Barbier J. (MNHP) ; 1♀, Côte-d’Or, Esbarres , 47.102°N, 5.229°E, 22.ix.1955, leg. Barbier J. (MNHP) ; 1♀, Côte-d’Or, Gevrolles , 47.985°N, 4.772°E, 4.ix.1957, leg. Barbier J. (MNHP) ; 1♀, Côte-d’Or, Esbarres , 47.102°N, 5.229°E, 16.vii.1958, leg. Barbier J. (CNCI) ; 1♀, Côte-d’Or, Esbarres , 47.102°N, 5.229°E, 27.viii.1959, leg. Barbier J. (CNCI) .

Hungary: Holotype: ♀, Pesta, Szentendrei-sziget , 47.643°N, 19.099°E, 2.vii.1957, leg. Szabó JB. (HNHM) (Figs 177-180 ) ; Paratype: 1♀, Siófok, Zamárdi, 46.861°N, 17.953°E, 29.x.1953, leg. Balogh J. (HNHM) .

Romania: 1♀, Iași, Botanical Garden , 47.186°N, 27.5512°E, 17.ix.2003, leg. Popovici O. (sweep net) (OPPC0692) ; 1♀, Constanța, Vadu , 44.47265°N, 28.8064°E, 26.viii.2004, leg. Popovici O. (sweep net) (OPPC0693) ; 1♀, Iași, Ciric lake , 47.18778°N, 27.60139°E, 30.vii.2010, leg. Popovici O. (YPT) (OPPC0482) ; 1♀, Iași, Botanical Garden , 47.1875°N, 27.54889°E, 30.vi.2011, leg. Noyes JS. (SS) (OPPC0755) .

Distribution.

Germany ( Buhl et al. 2016); Republic of Moldova ( Kozlov 1987); France, Hungary, Romania (Fig. 315 ).

Biology.

unknown.

Diagnosis.

Fidiobia pronotata can be easily identified by the elongate pronotum, shortened wings and large, non-foveate mesoscutal humeral and suprahumeral sulci. The epomial carina is absent, or very short and weakly indicated. This combination of characters is unique among Palearctic Fidiobia .

Comments.

In the original description of this species, Szabó (1958) designated the holotype and one paratype. Both specimens were located in HNHM. In the case of the holotype, near the original labels there is one label that indicates the specimen as the lectotype (Fig. 180 ). We do not understand the significance of this label.

It is a relatively rare species not often collected with sweep nets or Malaise traps.

Figures

Figures 170 - 176. Fidiobia pronotata: 170 habitus, dorsal view (OPPC 0693) 171 habitus, lateral view 172 head, dorsal view 173 head, frontal view 174 head and antenna 175 a antenna (♀) (OPPC 0692) 175 b sensillar formula 176 fore wing (OPPC 0692).

Figures 177 - 180. Holotype of Fidiobia pronotata. 177, 178 habitus, dorsal view 179 habitus, lateral view 180 data labels.

Figures 282 - 289. SEM of Fidiobia spp.: 282 F. striatitergitis 283 F. vladlubomiri 284 F. pronotata 285 F. roatai 286, 287 F. rugosifrons 288 F. flaviabdominalis 289 F. rugosifronsoides.

Figures 313 - 315. Geographical distribution of: 313 F. polita 314 F. politoides 315 F. pronotata (Blue area-data from Buhl et al. 2016 and Kozlov 1987. Red area: our data).