Fidiobia insoonae 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

11. Fidiobia insoonae Popovici, Talamas & Lahey sp. nov.

Figs 115-119 , 308

Description.

Female. Body length: 0.5 mm. Colour of body: melanic (Figs 115a , 116 ).

Head. Colour of head: brown. Sculpture of head: reticulate-coriaceous. Sculpture of occiput: transverse reticulate coriaceous. 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: alutaceous. Sculpture of frons immediately dorsal to toruli: the same with the sculpture from the rest of frons, but more transverse. Epitorular carina: present. Distance between toruli: equal to the transverse diameter of torulus. Setation of clypeus: two setae. Malar sulcus: absent. Antenna (Fig. 115b ). Colour of A1: light brown. Colour of clava: variable. 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 117 , 118 ). Colour of mesosoma: light 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: not dilated. Lateral pronotal area: sculptured only on the dorsal third. Antero-admedian line: absent. Mesoscutum: weakly convex. Parapsidal lines: absent. Sculpture of internotaular area: smooth in posterior half, reticulate coriaceous anteriorly. Notauli: present, incised. Shape of notauli: dilated posteriorly and acute 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: 2.0-2.9 times as long as wide. 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: 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: 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 only on the posterior half of the vertical part. 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: setae on one or two rows along of metapleural carina; foamy structure of metapleural carina not covered by these setae, anteriorly with a large glabrous area. Longitudinal striation on dorsal mesopleuron: present. Transepisternal line: present, anteroventrally as a short and superficial depression. Mesopleural carina: present. Metapleural sulcus: absent. Wings (Fig. 119a, 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: present, well visible. Disc of fore wing: with spinulose microtrichia. Legs. Colour of fore tibia: yellow. Colour of fore tarsus: yellow. Colour of middle femora: light-brown. Colour of middle tibiae: yellow. Colour of middle tarsus: yellow. Colour of hind femora: light-brown. Colour of hind tibiae: yellow. Colour of hind tarsus: yellow.

Metasoma. 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 in honor of Insoon Tripotin.

Material examined.

8♀. South Korea: Holotype 1♀, Chungnam, Daejeon-si, Wadong , 36.3601°N, 127.2345°E, 19.vi-24.vii.2007, leg. Tripotin P. (MT) (OPPC0058).

Paratypes: South Korea: 1♀, Chungnam, Daejeon-si, Wadong , 36.3601°N, 127.2345°E, 20.v-19.vi.2007, leg. Tripotin P. (MT) (OPPC0064) ; 1♀, Chungnam, Daejeon-si, Wadong , 36.3601°N, 127.2345°E, 19.vi-24.vii.2007, leg. Tripotin P. (MT) (OPPC0057) ; 1♀, Chungnam, Daejeon-si, Wadong , 36.3601°N, 127.2345°E, 21.viii-25.ix.2007, leg. Tripotin P. (MT) (OPPC0546) ; 1♀, Chungnam, Daejeon-si, Wadong , 36.3601°N, 127.2345°E, 25.ix-17.xi.2007, leg. Tripotin P. (MT) (OPPC0544) ; 1♀, Gangwon-do, Chuncheon Nam-myeon, Magog-li , Hongchen river , 37.72977°N, 127.5765°E, 11.vii-7.viii.2004, leg. Tripotin P. (MT) (OPPC0643) ; 1♀, Gangwon-do, Chuncheon Nam-myeon, Magog-li , Hongchen river , 37.72977°N, 127.5765°E, 26.ix-31.x.2004, leg. Tripotin P. (MT) (OPPC0816) ; 1♀, Jirisan, Hamyang, Songjeon-li , Munsu-sa , 35.41232°N, 127.7303°E, 6-27.vi.2004, leg. Tripotin P. (MT) (OPPC0493) .

Distribution.

South Korea (Fig. 308 ).

Diagnosis.

Fidiobia insoonae is superficially similar to F. polita , F. politoides , F. flaviabdominalis , and F. hofferi because of the almost similar size and the general habitus. It most obviously differs from F. polita , F. politoides , and F. flaviabdominalis (it is sympatric with the latter two) by the presence of notauli. Fidiobia insoonae and F. hofferi are allopatric and differ from each other mainly by the metascutellum, which is covered by the posterior margin of mesoscutellum and not visible in F. insoonae , and because of the setation of the metapleuron is sparse in F. hofferi and dense in F. insoonae . Also, the marginal fringe of the fore wing is short and barely noticable in F. hofferi but it is long in F. insoonae .

Figures

Figures 115 - 119. Fidiobia insoonae: 115 a habitus, dorsal view (Holotype) 115 b antenna (♀) (OPPC 0064) 116 habitus, lateral view 117 mesosoma, dorsal view 118 head and mesosoma, lateral view 119 a wings (OPPC 0064) 119 b WIP.

Figures 307 - 309. Geographical distribution of: 307 F. hofferi (Blue area-data from Asadi-Farfar et al. 2020 Koponen and Huggert 1982 Red area-our data) 308 F. insoonae 309 F. lisenchiae.