Fulvius anatolicus Çerçi & Gorczyca, 2021

Çerçý, Bariş, Gorczyca, Jacek & Koçak, Özgür, 2021, Description of New Miridae and Tingidae Species (Hemiptera: Heteroptera) and New Records from Southern Turkey, Zootaxa 4949 (2), pp. 312-332 : 313-318

Fulvius anatolicus Çerçi & Gorczyca sp. n.

( Figs. 1–6 )

Material examined: HOLOTYPE: ♂, Turkey: Adana, Bürücek, Toros , Anatolia, 29- 31.07.1947, Exp. N. Mus. ČSR., labelled as following: “ Fulvius oxycarenoides Reut. male / det. L. Hobertlandt 1953 // Fulvius anatolicus sp. n. male, G. Schmitz det, 1968” [pink label] ( NMPC) . PARATYPES: 1 ♀, Turkey: Mersin, Anamur , 23.06. 2017, Ö. Koçak leg., B. Çerçi det., glued on a cardboard, with all the legs and one of the antennae detached and glued on the same cardboard, female vagina glued on another cardboard, labelled as following: “ Fulvius anatolicus sp. n. / Anamur Mersin / 23.06.2017 B. Çerçi det. 2020” ( LEMT) ; 1 ♀, Turkey: Mersin, Anamur , 16.06.2017, Ö. Koçak leg., B. Çerçi det., glued on a cardboard with the female vagina glued on the same cardboard, labelled as following: “ Fulvius anatolicus sp. n. / Anamur Mersin / 26.07.2017 B. Çerçi det. 2020” ( LEMT) .

COLLECTION CIRCUMSTANCES: Paratypes were collected with UV light trap ( Fig. 1 ).

ETYMOLOGY: The new species is named after Anatolia, the Asian part of Turkey, from where the types were collected .

DIAGNOSIS: Head elongated, 1.25x as long as pronotum, 1.3–1.4x as long as wide, in lateral view, postocular length 3.8x as long as preocular length. Second antennal segment unicolorous dark brown, narrower than width of posterior tibia, uniform in width, pronotum and scutellum without small tubercles but with short horizontal stripes, hemelytra parallel-sided, dark brown with basal 1/3 pale coloured, as well as rectangular shaped area at outer half of precuneal border of corium (including exocorium), membrane fuscous with curved dark stripe along apical corner of bigger membranal cell. Vestiture covering head, pronotum, scutellum and hemelytra do not arise from tubercles, moderately dense. Vesica with 6 sclerotized processes which are either straight or only slightly curved. Outer margin of parieto-marginal rings semicircular shaped, dorsal labiate plate with a narrow and deep notch in the middle of posterior margin.

Description of male ( Fig. 2 ):

COLORATION: Dorsum brown with paler areas. Head dark brown, first antennal segment dark brown (remaining segments mutilated in specimen examined), labium invisible in specimen examined. Pronotal collar, pronotum, mesoscutum and scutellum dark brown. Proepimeron, mesepisternum and mesepimeron dark brown. Hemelytra pale brown, partly translucent, exocorium, clavus and corium paler apically, exocorium brown, tinged with red basally and apically, cuneus dark brown, corium with white patch contiguous with costal fracture. Membrane pale grey, venation grey, large areolar cell triangular, minor cell very small. Coxae pale brown at base, pale at apex, remaining segments of legs missing in specimen examined. Abdomen dissected.

TEXTURE AND VESTITURE: Dorsum matte, covered with fine, pale, short setae. First antennal segment covered with short fine setae.

STRUCTURE: Head elongated, eyes relatively small, removed from margin of pronotal collar. First antennal segment, short, much shorter than head length. Antenniferous tubercle removed from eye margin. Anterior lobe of pronotum slightly convex with thin longitudinal sulcus medially. Male genitalia as in Fig. 6F–G and 6I .

MEASUREMENTS (in mm): Body: Length 2.75, width 0.81. Head: Length of head 0.56, width 0.41, dorsal width of eye 0.07, width of vertex 0.24. Antenna: Length of first segment: 0.40. Pronotum: Length 0.50, length of lateral margins 0.56, length of anterior margin 0.42, length of posterior margin 0.84.

Description of female ( Fig. 3 ):

COLORATION: General coloration reddish brown to dark brown ( Fig.3A ). Head dark brown, immaculate, only slightly paled to reddish brown towards clypeus. Antennae immaculate, first and second antennal segments dark brown, third and fourth antennal segments slightly paler than first two segments. Pronotum and scutellum dark brown, immaculate. Hemelytra dark brown with basal 1/3 pale coloured, as well as rectangular shaped pale area at outer half of pre-cuneal border of corium (including exocorium). Membrane fuscous, veins darker coloured, curved dark stripe along apical corner of bigger membranal cell. Femora dark brown, pre-apically with narrow and diffuse red ring, apically paled, tibiae and tarsi pale brown, immaculate. Venter dark brown, immaculate.

VESTITURE AND TEXTURE: Pale coloured, moderately dense. Setae covering head pale, adpressed to ereced. Setae covering first and second antennal segment pale, short and adpressed except for a few long and semierected setae on first antennal segment. Setae covering third and fourth antennal segments pale, short and semierected. Setae covering pronotum, scutellum and hemelytra moderately dense, not arising from tubercles, adpressed and pale, thicker compared to setae covering extremities, only one row of setae along outer margin of exocorium ( Fig. 5D ). Setae covering femora and tibiae dense, pale and adpressed. Dorsum matt, head, pronotum, scutellum and hemelytra covered densely with very small points.

STRUCTURE: Oblong-oval, 3.7x as long as posterior width of pronotum. Head elongated, 1.25x as long as pronotum, 1.3–1.4 x as long as wide, in lateral view, postocular length 3.8x as long as preocular length, eyes located far apart from pronotal collar, preocular length, from dorsal view, 0.65x as long as length of eye, labium reaches apex of abdomen. First antennal segment slightly thicker than second one, former 0.8x as long as diatone, second antennal segment slender, narrower than thickness of posterior tibia, 1.2x as long as width of posterior margin of pronotum and 2.3x as long as diatone, third and fourth antennal segments equal in length, 0.5x as long as second antennal segment. Pronotum strongly trapezoid, posterior margin 2.4x as wide as anterior one, pronotal collar narrower than thickness of second antennal segment, anterior lobe with dome-shaped elevation, longitudinal groove passing through middle of dome shaped elevation, lateral margin of anterior lobe of pronotum straight, lateral margin of posterior lobe of pronotum straight as well but with lesser slope than posterior one, hence wide angle between them, lateral corner of prothorax slightly acute and bent up and outwards, visible from dorsal view, pronotum without tubercles but with short horizontal stripes ( Fig. 3C ). Scutellum also without tubercles but with short horizontal stripes. Hemelytra parallel sided, exceeds apex of abdomen, without any tubercles. Legs gracile, all with straight edges. Outer margin of parieto-marginal ring semicircular shaped, dorsal labiate plate with a narrow and deep notch in the middle of posterior margin ( Fig. 6K ).

MEASUREMENTS (in mm): Body: Length 3.00, width 1.00. Head: Length 0.56, width 0.41, dorsal width of eye 0.09, width of vertex 0.23. Antenna: Length 0.32: 0.94: 0.39: 0.45. Pronotum: Length 0.46, length of lateral margins 0.48, length of anterior margin 0.34, length of posterior margin 0.81.

DIFFERENTIAL DIAGNOSIS: This new species is included in the genus Fulvius Stål because of its general appearance matching with the anthocoroides -group species of Fulvius , especially close to Fulvius oxycarenoides ( Reuter, 1878) and Fulvius ussuriensis Kerzhner, 1973 . The only species of this genus that distributes in Western Palaearctic region (excluding Azores and Canary Islands) is F. oxycarenoides . It was originally described from Greece and later found from Balkans, France, Italy, Spain in Europe, and Caucasian region of Russia, Azerbaijan, Georgia, Iran and Turkey in Asia ( Reuter 1878; Reuter 1895; Linnavuori 2009; Aukema 2020). This species was recorded from Turkey from Adana ( Hoberlandt 1956; Linnavuori 1965) and Kastamonu ( Küçükbasmacı & Kıyak 2015), but the record of Hoberlandt (1956) was based on an erroneous identification of the holotype of F. anatolicus Çerçi & Gorczyca sp. n. as F. oxycarenoides . Considering the proximity of the collection site of this new species with Pozantı, Adana, it is possible that record of F. oxycarenoides by Linnavuori (1965) might also refer to the new species described here.

F. anatolicus sp. n. looks similar to F. oxycarenoides at first glance, due to similar colour pattern of hemelytra but differs from it in many ways: Second antennal segment unicolorous (basally dark brown and apically white in oxycarenoides ) and slender (thicker than width of posterior tibia in oxycarenoides ); head 1.3–1.4 times as long as wide (only 1.0– 1.2 in oxycarenoides ); rostrum reaches to apex of abdomen (rostrum does not surpass posterior border of thorax in oxycarenoides ), pronotum, scutellum and hemelytra without any tubercles, setae do not arise from tubercles ( Fig. 5D ) [these with distinct tubercles, from which setae arise in oxycarenoides ( Fig. 5B )], posterior lobe of pronotum with dense short horizontal stripes ( Fig. 3C , 6B ) [posterior lobe of pronotum with dense tubercles in oxycarenoides ( Fig. 4C , 6A )], setae covering pronotum, scutellum and hemelytra moderately dense ( Fig. 5D ) [setae covering them noticeably denser in oxycarenoides ( Fig. 5B )], vesica with 6 sclerotized processes which are either straight or only slightly curved ( Fig. 6I ) [vesica with only 3 sclerotized processes, 2 of which are strongly curved in oxycarenoides ( Fig. 6H )], outer margin of parieto-vaginal rings semicircular shaped ( Fig. 6K ) [these differently shaped in oxycarenoides ( Fig. 6J )], posterior margin of dorsal labiate plate with a narrow and deep notch in the middle ( Fig. 6K ) [this without any notch in oxycarenoides ( Fig. 6J )] ( Sadowska-Woda et al. 2006). Comparison with F. oxycarenoides is based on a specimen of this species preserved in LEMT, which was collected from Comona, Romania by Montandon ( Fig. 4 ) and the description provided by Wagner (1974). The very same specimen was mentioned by Reuter (1895) to be collected in 1892 and identified by himself as F. oxycarenoides . Among other species of Fulvius which are known to occur in Palaearctic Region, it is most similar to the Far Eastern species Fulvius ussuriensis Kerzhner, 1973 due to similar colour patterns of hemelytra, unicolorous brown second antennal segment and rostrum extending to apex of abdomen ( Kim et al. 2019; Yasunaga & Nakagawa 2020). But F. anatolicus sp. n. also differs from this species by the following characters: head 1.3–1.4x as long as wide (head as long as wide in ussuriensis ), vertex without any sulcus (vertex with a weak longitudinal sulcus in ussuriensis ), eyes noticeably removed from pronotal collar (eyes adjacent to pronotal collar in ussuriensis ), cuneus covered with setae, as the rest of hemelytra (cuneus without pubescence in ussuriensis ) and vesica with 6 sclerotized processes which are either straight or only slightly curved (vesica with 4 sclerotized processes, 2 of which are strongly curved in ussuriensis ) ( Kim et al. 2019). It differs from all other species of this genus known from Palaearctic Region by second antennal segment being unicolorous. Table 1 summarizes differential diagnostic features between the new species, Fulvius oxycarenoides and Fulvius ussuriensis .

Figures

FIG. 1A–B. 1A—Fulvius anatolicus Çerçi & Gorczyca sp. n., paratype, female, 1B—idem, paratype, female.

FIG. 2A–B. 2A—Fulvius anatolicus Çerçi & Gorczyca sp. n., holotype. 2B—idem, holotype, first antennal segment, head & pronotum. (Scale bars 0.5 mm).

FIG. 3A–C. 3A—Fulvius anatolicus Çerçi & Gorczyca sp. n., paratype, dorsal habitus (scale bar = 1 mm), 3B—idem, paratype, head and pronotum from lateral view (scale bar = 0.1 mm), 3C—idem, pronotum from superolateral view.

FIG. 4A–C. 4A—Fulvius oxycarenoides (Reuter, 1878), dorsal habitus (scale bar = 1 mm), 4B—idem, head and pronotum from lateral view (Scale bar = 0.1 mm), 4C—idem, pronotum from superolateral view.

FIG. 5A–D. 5A—Fulvius oxycarenoides (Reuter, 1878), dorsal habitus from superolateral view, 5B—idem, close view of co- rium, 5C—Fulvius anatolicus Çerçi & Gorczyca sp. n., paratype, dorsal habitus from superolateral view, 5D—idem, close view of corium.

FIG. 6A–J. 6A—Fulvius oxycarenoides (Reuter, 1878), female, dorsal habitus, 6B—Fulvius anatolicus Çerçi & Gorczyca sp. n., holotype, head and pronotum, 6C—idem, apex of hemelytra, 6D—Fulvius oxycarenoides (Reuter, 1878), right paramere, 6E—idem, left paramere, 6F—Fulvius anatolicus Çerçi & Gorczyca sp. n., holotype, left paramere, 6G—idem, right paramere, 6H—Fulvius oxycarenoides (Reuter, 1878), aedeagus, 6I—Fulvius anatolicus Çerçi & Gorczyca sp. n., idem, 6J—Fulvius oxycarenoides, vagina, 6K—Fulvius anatolicus Çerçi & Gorczyca sp. n., idem. [Figures 6A–I were drawn by the late Guy Schmitz, 6J was adapted from Sadowska-Woda et al. (2006) and seminal sac was omitted for the sake of comparison]