Doratura lobele Bückle & Guglielmino 2022, sp. nov.
Creators: name: Bückle, Christoph
name: Guglielmino, Adalgisa
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Doratura
Doratura lobele

description: Doratura lobele sp. nov.
(Figs 1D; 2O; 3F; 34K, L; 40C–G; 41M–Q)
Description. Coloration (Figs 40C, D). Males with the general characters described for the genus Doratura (see above). Hind region of vertex sometimes with one or two small spots on each side near hind margin; fuscous markings in the middle of pronotum and scutellum sometimes forming indistinct sagittal band from vertex tip to scutellum. Wings without green tinge, with whitish veins and ± hyaline cells. Abdomen light with eight longitudinal rows of ± distinct markings, central ones very close to each other, divided by noticeably light middle line, middle ones formed of small spots, lateral two rows more distinct and formed of longitudinal stripes. In light specimens abdominal markings almost lacking. Females with same pattern of coloration as males, sometimes somewhat lighter.
Measurements. Males: Total body length: 2.96–3.23 (in one case 3.57) mm; width over wings: 1.11–1.36 mm; width of head: 1.07–1.13 mm; length of vertex: 0.46–0.52 mm; length of forewings from shoulder to apex: 0.92–1.06 mm; length of hind tibia: 1.50–1.75 mm. Females: Total body length: 3.85–4.15 (in one case 4.46) mm; width over wings: 1.15–1.31 (in one case 1.43) mm; width of head: 1.13–1.19 (in one case 1.25) mm; length of vertex: 0.51–0.56 mm; length of forewings from shoulder to apex: 0.94–0.98 (in one case 1.11) mm; length of hind tibia: 1.65–1.84 mm.
Male genitalia. Aedeagus shaft with shield-shaped base, in lateral view (Fig. 41M) almost evenly narrowing from basal fifth to tip, apex thin and hook-shaped, ventral border very slightly concave or almost straight at midlength, dorsal margin somewhat convex; ventro-basal part distinctly carinate. In ventral view (Fig. 41N) basal part distinctly protruding laterally with angular latero-apical margin, shaft towards apex somewhat widening until about mid-length, then narrowing evenly until aedeagus tip; surface smooth and shiny without spinules or teeth. Socle rather high in lateral view, wide and distinctly protruding laterad in ventral view. Styles (Fig. 41O) with denticle almost two thirds of style length distant from base, apical part rather short, distinctly bent, basal portion with exterior margin abruptly bent at mid-length, slightly widened along its apical half. Connective (Fig. 2O) short, length of branched part approximately as length of basal part. Pygofer (Fig. 3F) with about three macrosetae in dorso-caudal position. Genital plates (Figs 41P, Q) short, apically rounded, without distinct sutural angle and with at most indistinct exterior angle, lateral margin strongly sinuate.
Female genitalia. Pregenital sternite (Figs 34K, L) with lateral margin slightly converging in caudal direction, obtuse posterior angles, hind margin laterally ± straight, medially with deep V-shaped notch. Ovipositor in lateral view protruding beyond posterior angle of pygofer somewhat less than 1/4 to almost 1/3 of its length from hind margin of pregenital segment to ovipositor tip.
Fifth instar of nymph (Figs 40E–G). Pronotum, pterothorax and wingpads brown, lateral parts lighter; abdomen with narrow light middle line, laterally brown, with exterior portion (above all in tergites V–VI) light, base of setae dark; light specimens occur very often, with strongly reduced and indistinct markings and ± homogeneous brownish yellow coloration.
Diagnosis. D. lobele combines characters in its genital morphology that make a definition of a general affinity to any other Doratura taxon very difficult. The species displays an aedeagus morphology (Figs 41M, N) with distinct affinity to the D. stylata group by the lack of spinules or teeth, the shape of the shaft in lateral view with slender tip ending in a hook, and above all by the wide laterally strongly protruding shield-shaped ventral base of the shaft apicad followed by a sagittal carina. However, both the style (Fig. 41O) with its short apical portion (in the D. stylata group very long and thin, often longer than the basal portion) and the deep notch on the hind margin of the female pregenital sternite (Figs 34K, L) (lacking in the D. stylata group) distinguish this taxon from all members of the D. stylata group. A small notch on the hind margin of the pregenital sternite is present in the females of D. gravis, but the styles morphology in this species is quite different. Other Doratura taxa with medially excavated hind margin of pregenital sternite have all a distinctly different morphology of aedeagus and/or styles.
Distribution (Figs 62B, 63). D. lobele is known so far only from the Peloponnese peninsula (Greece).
Ecology. Specimens were found at low and medium altitude between 450 and 1254 m on dry meadows and pastures, and ruderal biotopes.
Phenology. Specimens were collected at the beginning of August (2.–9.8.); in this period, males, females and nymphs were present.
Type series. Holotype, male: Greece: Arcadia, Tripoli, Kandalos; 37°24‘57.0‘‘N 22°21‘02.3‘‘E; 880 m; 09.08.2017; Guglielmino & Bückle leg. (GR29); open area with Quercus coccifera, Crataegus, Acer, Pinus malus, Poaceae.— Paratypes: Same data as holotype; 7 males, 5 females.— Achaia, Kalavryta, Kalivia; 37°49‘32.8‘‘N 22°06‘34.8‘‘E; 450 m; 02.08.2017; Guglielmino & Bückle leg. (GR9); dry meadows, moderately moist areas; 4 males, 1 female.— Corinthia, Killini, Mesino; 37°54‘54.8‘‘N 22°21‘15.1‘‘E; 1254 m; 03.08.2017; Guglielmino & Bückle leg. (GR12); dry pasture; 2 females.— Lakonia, Parnon, Polidroso; 37°09‘05.9‘‘N 22°36‘47.9‘‘E; 1061 m; 06.08.2017; Guglielmino & Bückle leg. (GR19); dry pasture; 6 males, 5 females.— Messenia, Kalamata, Dyrrachio; 37°12‘16.3‘‘N 22°11‘26.8‘‘E; 844 m; 09.08.2017; Guglielmino & Bückle leg. (GR27); Quercus forest, ruderal areas with moist spots; 5 males.
The type material is deposited in the Department of Agricultural and Forestry Sciences, University of Tuscia, via S. Camillo de Lellis snc, I –01100 Viterbo, Italy (collection Guglielmino).
Etymology. The species is named after a historic personage living in the last century in the Swabian village of Pfäffingen. The species name is a noun in apposition.
description: Published as part of 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, pp. 1-116 in Zootaxa 5112 (1) on pages 58-59, DOI: 10.11646/zootaxa.5112.1.1, http://zenodo.org/record/6340589