Fidiobia brevinotaula Veenakumari, Popovici & Buhl, 2018

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

3. Fidiobia brevinotaula Veenakumari, Popovici & Buhl, 2018

Figs 48-55 , 300

Fidiobia brevinotaula Veenakumari, Popovici & Buhl, 2018: 557.

Description.

Female (Figs 48 , 49 ). Body length: 0.6 mm. Colour of body: melanic, T1 lighter than the rest of body (Fig. 48 ).

Head (Figs 50 , 51 ). Colour of head: black. Sculpture of head: reticulate coriaceous. Sculpture of occiput: transverse reticulate coriaceous. Ocellar prominence: absent. Preocellar depression: absent. Paraocellar depressions: absent. OOL / ocellar diameter: OOL shorter than 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: the same as the sculpture of 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. 52 ). Colour of A1: yellow. Colour of clava: 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 53 , 54 ). Colour of mesosoma: black. 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 half. Antero-admedian line: absent. Mesoscutum: weakly convex. Parapsidal lines: absent. Sculpture of internotaular area: smooth, almost absent in posterior half, imbricate coriaceous anteriorly. Notauli: present, incised. Shape of notauli: dilated posteriorly and rounded anteriorly. Outer edge of notauli: medial to axillular carina. Orientation of inner edge of notauli: converging posteriorly. Length of notauli: at most 0.3 times as long as length of mesoscutellum, 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 surpassing 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: present. Foamy structure on metasomal depression: absent. Lateral propodeal carinae: parallel. Foamy structure on lateral propodeal carina: present on the entire carina. 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 metapleuron: dense, long setae on 3-4 rows along the metapleural carina, covering the foamy structure of metapleural carina, anteriorly with triangular glabrous area. Longitudinal striation on dorsal mesopleuron: present. Transepisternal line: short, anteroventrally located near mesopleral carina. Mesopleural carina: present. Metapleural sulcus: not visible. Wings (Fig. 55a, b ): macropterous. Apex of fore wing: rounded. Colour of fore wing: infuscate. Transverse brown band on fore wing: absent. 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: faintly indicated. Disc of fore wing: with spinulose microtrichia. Legs. Colour of fore tibia: yellow. Colour of fore tarsus: yellow with darker pretarsus. Colour of middle femora: yellow. Colour of middle tibiae: yellow. Colour of middle tarsus: yellow with darker pretarsus. Colour of hind femora: yellow. Colour of hind tibiae: yellow. Colour of hind tarsus: yellow with darker pretarsus.

Metasoma (Fig. 48 ): Posterior of T2 some or all tergites may be under T2. Shape of T1: trapezoidal. Colour of T1: light brown. Lateral setae of T1: 2 pairs. Colour of T2: dark-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.

Material examined.

5♀. Russia : 1♀, Primorsky Krai, Ussuriysk District, Gornotayozhnoye , 44.1°N, 132.41°E, 4-10.viii.1999, leg. Michailovskaya MV. (YPT) (CNCI) ; 3♀, Primorsky Krai, Ussuriysk District, Gornotayozhnoye , 44.1°N, 132.41°E, 16-18.ix.1999, leg. Michailovskaya MV. (YPT) (CNCI) .

South Korea: 1♀, Gyeongsan-si , Daehak-ro 280, Yeungnam University, 35.82119°N, 128.7634°E, 14.viii.2016, Fusu L. (YPT) (OPPC0073) .

Distribution.

India (Veenakumari et al. 2018), Russia, South Korea (Fig. 300 ).

Diagnosis.

Fidiobia brevinotaula is a distinct species based on the abbreviated notauli; the transaxillar carina and horizontal part of the dorsal axillar area that are not visible; the presence of foamy structures on the lateral propodeal carinae; the long, strong, white, dense setae on the metapleuron; and the minute size of specimens. It is close habitually to F. insoonae , but these species can be separated by the marginal setae of fore wings (short in F. brevinotaula and long in F. insoonae ) and by the setation of metapleuron (there are long, strong, dense setae in F. brevinotaula and short, tiny, sparse setae in F. insoonae ).

Figures

Figures 48 - 55. Fidiobia brevinotaula: 48 habitus, dorsal view (OPPC 0073) 49 habitus, lateral view 50 head, dorsal view 51 head, frontal view 52 antenna (♀) 53 mesosoma, dorsal view 54 head and mesosoma, lateral view 55 a wings 55 b WIP.

Figures 298 - 300. Geographical distribution of: 298 F. bohemica 299 F. brevialis 300 F. brevinotaula (Blue area-data from Veenakumari et al. 2018. Red area-our data).