Doratura horvathi Wagner, 1939

Bückle, Christoph & Guglielmino, Adalgisa, 2022, Revision of the genus Doratura Sahlberg (Hemiptera, Cicadellidae, Deltocephalinae) with particular regard to its distribution in Italy and description of four new species, Zootaxa 5112 (1), pp. 1-116 : 57-58

Doratura horvathi Wagner, 1939

( Figs 34I ; 40B ; 41G–L )

Doratura horvathi Wagner, 1939: 156

Diagnosis. The species has some characters in common with the D. stylata group: The vertex displays (in dark specimens) an intermediate transverse row of markings (similar to D. stylata ), the aedeagus ( Figs 41G, H ) is smooth, distad narrowing with apical hook, and provided with a basal shield. The hind margin of the female pregenital sternite ( Fig. 34I ) is straight or at most slightly convex. The connective is slightly longer than in D. stylata , its branched portion distinctly longer than the basal one, the bifurcation rather narrow. The pygofer displays about 3–4 macrosetae in its dorso-caudal portion. The styles ( Fig. 41I ), however, are not geniculate, but equally curved with acuminate tooth at mid-length and equally narrowing apical portion. The long, apically rounded genital plates ( Figs 41K, L ), which protrude beyond the pygofer apex, form an exclusive character.

Distribution ( Figs 57 , 62B ). We studied specimens from Austria and Germany. In addition, there are records for Czech Republic ( Lauterer, 1984), Poland ( Dworakowska, 1968), and Slovakia ( Lauterer, 1984). The record in Metcalf for the Netherlands, based on Reclaire (1944) is erroneous. Reclaire’s record refers to Germany. The species is recorded by Servadei (1967) in Italy from Apulia, Basilicata, and Calabria. We found specimens (1 male, 2 females) from Apulia and Basilicata, inserted in his collection as D. horvathi . These specimens belong to D. butzele . The specimens from M. Manfriana (Calabria, Monte Pollino) could not be examined. In view of the apparently restricted distribution of D. horvathi in Central Europe with records only from Germany, Austria, Poland, Czech Republic and Slovakia, the presence of D. horvathi in southern Italy is extremely doubtful.

Ecology. Helictotrichon pratense is recorded as host plant ( Nickel, 2003).

Figures

FIGURE 34. Doratura concors group, D. homophyla group, D. salina, D. horvathi, D. lobele. Females.A–D: D. concors group. A: D. concors Horváth. Pregenital sternite. Montenegro, Nikšić, Vidrovan; B, C: D. rusaevi Kusnezov.Apical part of abdomen, ventral view. B: Russia, Astrachan, Sör-Kata; C: Kazakhstan, Karaganda, Zhana-Arka; D: D. medvedevi Logvinenko. Apical part of abdomen, ventral view.—E, F: D. homophyla group. E: D. homophyla (Flor). Pregenital sternite. Germany, Baden-Württemberg, Baden-Baden, Sandweier; F: D. caucasica Melichar. Pregenital sternite. Azerbajan, Talysch, Alekseevka.—G, H: D. salina Horváth. G: Apical part of abdomen, ventral view. Romania, Cluj, Someşeni; H: pregenital sternite. Romania, Constanţa, Techirghiol.—I: D. horvathi W. Wagner. Pregenital sternite. Germany, Niedersachsen, Lengder Burg.—K, L: D. lobele sp. nov. Greece, Arcadia, Tripoli, Kandalos. K: apical part of abdomen, ventral view; L: pregenital sternite.

FIGURE 40. Doratura salina Horváth, D. horvathi W. Wagner, D. lobele sp. nov. A: D. salina. Male. Romania, Techirghiol, 11.09.1960, (MNHN)EH 23444.—B: D. horvathi. Male. Germany, Niedersachsen, Lengder Burg.—C–G: D. lobele. C: male. Greece, Lakonia, Parnon, Polidroso, 1061 m, 06.08.2017; D: female. Greece, Lakonia, Parnon, Polidroso, 1061 m, 06.08.2017; E: nymph. Greece, Messenia, Kalamata, Dyrrachio, 844 m, 09.08.2017; F: nymph. Greece, Lakonia, Parnon, Polidroso, 1061 m, 06.08.2017; G: nymph. Greece, Arcadia, Tripoli, Kandalos, 880 m, 09.08.2017.

FIGURE 41. Doratura salina Horváth, D. horvathi W. Wagner, D. lobele sp. nov. A–F: D. salina. A, B: aedeagus, ventral and lateral view. Romania, Cluj, Cojozna; C: aedeagus, rostral view (in direction of arrow in Fig. B). Ukraine, Charkow, Zelenino; D: right style, dorsal view. Romania, Cluj, Cojozna; E: right genital plate, ventral view. Romania, Cluj, Someşeni; F: left geni- tal plate, dorsal view. Romania, Constanţa, Techirghiol.—G–L: D. horvathi. Germany, Niedersachsen, Lengder Burg. G, H: aedeagus, ventral and lateral view; I: right style, dorsal view; K: right genital plate, ventral view; L: left genital plate, dorsal view.—M–Q: D. lobele. M, N: aedeagus, lateral and ventral view. Greece, Arcadia, Tripoli, Kandalos; O: right style, dorsal view. Greece, Arcadia, Tripoli, Kandalos; P: left genital plate, dorsal view. Greece, Messenia, Kalamata, Dyrrachio; Q: right genital plate, ventral view. Greece, Arcadia, Tripoli, Kandalos.

FIGURE 57. Doratura stylata group, D. rikele Guglielmino & Bückle, D. homophyla (Flor), D. horvathi W. Wagner, D. concors Horváth. Distribution in Italy and Slovenia. ◊ = D. stylata (Boheman); ■ = D. exilis Horváth; ◄ = D. impudica Horváth; ▲ = D. rikele; ● = D. homophyla; ○ = D. horvathi; ♦ = D. concors. In brackets: Records from literature only.

FIGURE 62. Doratura caucasica Melichar, D. salina Horváth, D. horvathi W. Wagner, D. lobele sp. nov. Distribution maps.A: D. caucasica; B: D. salina, D. horvathi, D. lobele. ● = D. salina; ■ = D. horvathi; ▲ = D. lobele. (only one generic distribution point in the middle of each country, except for Greece, Kazakhstan, Romania, Russia, Turkey, and Ukraine).