Fidiobia politoides Popovici, Talamas & Lahey, 2022

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

17. Fidiobia politoides Popovici, Talamas & Lahey sp. nov.

Figs 165-169 , 314

Description.

Female. Body length: 0.5 mm. Colour of body: melanic (Figs 165-166 ).

Head (Fig. 167 ). Colour of head: brown. Sculpture of head: reticulate-coriaceous. Sculpture of occiput: transverse reticulate coriaceous. Ocellar prominence: absent. Preocellar depression: absent. Paraocellar depressions: present. OOL / ocellar diameter: OOL shorter than ocellar diameter. Orientation of lower half of inner orbits: visibly divergent. Sculpture of frons immediately anterior to ocellus: alutaceous. Sculpture of frons immediately dorsal to toruli: the same as the rest of frons, but more transverse. Epitorular carina: present. Distance between toruli: smaller than the transverse diameter of torulus. Setation of clypeus: two setae. Malar sulcus: absent. Antenna (Fig. 168 ). Colour of A1: light brown. Colour of clava: similar to or slightly darker than the rest of antenna. 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.

Mesosoma (Figs 165 , 166 ). Colour of mesosoma: brown. Mesosoma: weakly compressed dorsoventrally. Pronotum in dorsal view: narrow, collarlike. Transverse pronotal sulcus: present as a narrow groove along anterior rim of pronotum. Posteroventral end of transverse pronotal sulcus: dilated. Lateral pronotal area: sculptured only on the dorsal third. Antero-admedian line: absent. Mesoscutum: weakly convex. Parapsidal lines: absent. Sculpture of internotaular area: absent. Notauli: absent. Shape of notauli: NA. Outer edge of notauli: NA. Orientation of inner edge of notauli: NA. Length of notauli: NA. Length of notaulus / maximum width of notaulus: NA. Distance between notauli: NA. 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: absent. 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: present. Transverse carina between lateral propodeal carinae: present. Foamy structure on transverse carina between lateral propodeal carinae: present, weakly developed. Foamy structure on metasomal depression: absent. Lateral propodeal carinae: parallel. Foamy structure on lateral propodeal carina: absent. Plica: not visible. Posterior end of plica: NA. Foamy structure on plica: NA. Foamy structure on metapleural carina: present on the entire carina. Foamy structure on ventral metapleural area: present. Setation of dorsal metapleural area: few, sparse setae. Setation of ventral metapleural area: absent. Longitudinal striation on dorsal mesopleuron: present. Transepisternal line: absent. Mesopleural carina: present. Metapleural sulcus: present, incomplete. Wings (Fig. 169a, b ): macropterous. Apex of fore wing: rounded. Colour of fore wing: transparent. Transverse brown band on fore wing: present. Submarginal vein in fore wing: present. Length of submarginal vein in fore wing: not surpassing basal 1/4 of fore wing. Spectral veins on fore wing: absent. Marginal setae of fore wing: very short, almost absent. Disc of fore wing: with spinulose microtrichia. Legs. Colour of fore tibia: light brown. Colour of fore tarsus: light brown. Colour of middle femora: light brown. Colour of middle tibiae: light brown. Colour of middle tarsus: light brown. Colour of hind femora: light brown. Colour of hind tibiae: light brown. Colour of hind tarsus: light brown.

Metasoma (Figs 165 , 166 ): Posterior of T2 some or all tergites may be retracted under T2. Shape of T1: trapezoidal. Colour of T1: 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-T5: the same as T2.

Male. unknown.

Etymology.

This species is named for its similarity to F. polita .

Material examined.

2♀. South Korea: Holotype 1♀, Chungnam, Daejeon-si, Wadong , 36.3601°N, 127.2345°E, 24.iv-20.v.2007, leg. Tripotin P. (MT) (OPPC0653).

Paratype: South Korea: 1♀, Gangwon-do , Chuncheon Nam-myeon, Hudong-ri, 34.6422°N, 127.6285°E, 25.v-14.vi.2003, leg Tripotin P. (MT) (OPPC0475) .

Distribution.

South Korea (Fig. 314 ).

Biology.

unknown.

Diagnosis.

Fidiobia politoides is close to F. polita because T2 is transverse or about as long as wide and the OOL is about as long as an OD (OOL 0.8-1.2 times as long as OD) and they differ in the length of the fore wing marginal setae (long marginal setae in F. polita and very short marginal setae in F. politoides ). In the structure of antenna, the clava in F. politoides is larger than in F. polita , and A5 and A6 are more transverse in F. politoides than in F. polita . According to the studied material these species are allopatric.

Figures

Figures 165 - 169. Fidiobia politoides: 165 habitus, dorsal view (OPPC 0475) 166 habitus, lateral view 167 head (frontal view) and antenna 168 antenna (♀) 169 a wings 169 b WIP.

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).