Doratura roesle 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 roesle

description: Doratura roesle sp. nov.
(Figs 7C–E; 9D–G; 10K, L; 11E; 12G; 19H)
Description. Coloration (Figs 7C–E). With the general characters described for the genus Doratura (see above). Central and hind region of vertex at most with indistinct light brown markings, sometimes with small brown spots along hind margin; pronotum light without markings, somewhat fuscous in sagittal part. Fore wings hyaline pale without green tinge and generally without dark markings. Abdomen light with eight longitudinal rows of small markings, central ones very close to each other, divided by noticeably light middle line, middle ones formed of very small spots, lateral two rows more distinct and formed of short longitudinal stripes; in light specimens abdominal markings almost lacking. Females with same pattern of coloration as males.
Measurements. Males: Total body length: 2.95–3.25 mm; width over wings: 1.15–1.28 mm; width of head: 1.07–1.14 mm; length of vertex: 0.48–0.55 mm; length of forewings from shoulder to apex: 0.88–1.00 mm; length of hind tibia: 1.60–1.78 mm.
Females: Total body length: 3.80–4.25 mm; width over wings: 1.20–1.38 mm; width of head: 1.10–1.25 mm; length of vertex: 0.52–0.58 mm; length of forewings from shoulder to apex: 0.95–1.06 mm; length of hind tibia: 1.65–1.90 mm.
Male genitalia. Aedeagus smooth, shaft in lateral view (Fig. 10L) equally narrowing towards apex, ventral margin straight or very slightly convex, whole lateral part sclerotized without membranous areas; in ventral view (Fig. 10K) basal shield with rather indistinct or lacking latero-apical angles, central part indistinctly widening. Styles (Fig. 11E) in dorsal view almost equally curved, not geniculate, with prominent acuminate denticle ± at mid-length, portion basally of denticle slender, lateral apodeme (“talon”) acuminate. Connective with basal portion somewhat shorter than branched portion; basal part parallel, branching with rounded angles. Pygofer with about three long macrosetae on each side near its dorso-caudal margin. Genital plates (Fig. 12G) apically with rounded angles, laterally sinuate.
Female genitalia. Pregenital sternite (Fig. 19H) with hind margin straight or slightly convex in the middle. Ovipositor in lateral view protruding beyond posterior angle of pygofer barely 0.3 times length from hind margin of pregenital sternite to ovipositor tip.
Fifth instar (Figs 9D–G). All the nymphs collected together with adults of D. roesle display a coloration pattern similar to that of D. stylata. Some nymphs are very light, and their coloration pattern cannot easily be discerned.
Diagnosis. Based on the morphology of aedeagus and female pregenital sternite, D. roesle belongs to the D. stylata group. It differs from D. exilis and D. stylata particularly by its proportionally long vertex (Figs 7C–E) with ratio length to width including eyes 0.43–0.5 (in D. exilis and D. stylata 0.37–0.43) and by the not geniculate styles (Fig. 11E) (in D. exilis and D. stylata distinctly geniculate) with acuminate lateral apodeme, from D. impudica also by its distinctly smaller size (D. roesle: males maximum 3.25 mm, females maximum 4.25 mm; D. impudica: males minimum ca. 3.9 mm, females minimum ca. 5.3 mm). In coloration and head shape, D. roesle resembles to some degree D. vefele and specimens among the D. vefele complex. In regard of the style or aedeagus morphology, there is equally some affinity to some specimens belonging to the D. vefele complex. D. roesle is distinguished in respect of these specimens, however, by its smaller body size and above all by its proportionally very short fore wings with ratio length (from shoulder to hind margin) to width of head 0.8–0.91 (in specimens of D. vefele and the D. vefele complex 1.03–1.24).
Distribution (Fig. 63). Until now, known only from three localities in the northern part of the Peloponnese Peninsula (Greece).
Ecology. The material was collected on dry open areas at about 950–1200 m altitude.
Phenology. The specimens (nymphs, males, females) were collected at the end of July and the beginning of August.
Type series. Holotype, male: Greece: Achaia, Kalavryta, Lousiko; 37°58‘11.0‘‘N 22°08‘31.3‘‘E; 960 m; 02.08.2017; Guglielmino & Bückle leg. (GR10); dry pasture, Quercus cf. coccifera, Prunus spinosa, Poaceae, Ononis.— Paratypes: Same data as holotype; 16 males, 8 females.— Greece: Achaia, Erymanthos, Elliniko; 38°02‘08.6‘‘N 21°49‘49.3‘‘E; 943 m; 31.07.2017; Guglielmino & Bückle leg. (GR4); spring in forest of Abies, Holoschoenus, Juncus, Carex, Equisetum, dry areas with thistles, Poaceae, Ononis (?), Quercus cf. ilex, Prunus spinosa, Lamiaceae; 11 males, 4 females.
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 dear housemaid, once living and working in the house of one of the authors. 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 26-30, DOI: 10.11646/zootaxa.5112.1.1, http://zenodo.org/record/6340589