Doratura (Doratura) rikele, Guglielmino & Bückle, 2021

Guglielmino, Adalgisa & Bückle, Christoph, 2021, Two new species of the genus Doratura Sahlberg (Hemiptera: Cicadellidae: Deltocephalinae) from the Mediterranean Region, Israel Journal of Entomology (Oxford, England) 51 (6), pp. 77-84 : 80-82

Doratura (Doratura) rikele n. sp.

( Figs 5–8)

LSID: urn:lsid:zoobank.org:act:CF468D3C-B11E-4461-B823-5465FFE747BA .

Etymology: The species is named after a historic personage living about a century ago in the Swabian village of Bonlanden. The species name is a noun in apposition. Diagnosis: Doratura rikele n. sp. is related to D. heterophyla Horváth, 1903 and D. kusnezovi Vilbaste, 1961 . It shares with these species a median notch on the hind margin of the pregenital segment in females, a smooth and shiny aedeagus without spinules or teeth and above all a stout stylus shape with only a slightly narrowing apical portion. From both taxa the new species differs in having the rounded (not angular) notch on the hind margin of the female pregenital segment, by the shape of the aedeagus which is of equal width along almost all its length (not distinctly narrowing in its apical half), by the view almost evenly curved in dorsal and rather short styli (in both other species the styli are long, in the basal third distinctly bent, in the apical portion nearly straight) and the shorter genital plates (very long in the other taxa). In addition, the new species is distinguished from D. heterophyla in being smaller and in having shorter wings, and from D. kusnezovi by the hook-shaped stylus tip.

Description: Measurements (mm): Males: Total body length 3.05–3.40, width over wings 1.31–1.46, width of head including eyes 1.13–1.21, length of vertex 0.48–0.52, length of forewings from insertion point to apex 1.02–1.17, length of hind tibia 1.79–1.97. Females: Total body length 4.35–4.60, width over wings 1.40–1.54, width of head including eyes 1.25–1.31, length of vertex 0.52–0.55, length of forewings from insertion point to apex 1.09–1.21, length of hind tibia 1.82–2.06.

Male genitalia: Aedeagus shaft in lateral view ( Fig. 5) stout, along almost its whole length of approximately equal width, only near apex ventrally rounded narrowing, with short hook-shaped tip, dorsally in the middle slightly concave, ventrally slightly convex, basal part low; in ventral view basally strongly narrowed, centrally almost parallel, in apical fourth evenly rounded, basal part obtusely carinate; fold between shaft and base slightly oblique, shaft smooth and shiny without spinules or teeth; socle in lateral view very flat, in ventral view strongly, almost angularly protruding near base. Styles ( Fig. 6) in dorsal view almost evenly curved, somewhat more distinctly apically of inner denticle, stout and wide, only moderately narrowing towards the tip; in median view straight and evenly wide with hook shaped apex; denticle about at mid-length. Genital plates ( Fig. 7) with rounded sutural angle, posterior margin obliquely running in laterocaudal direction until rather indistinct exterior angle, lateral margin sinuate.

Female genitalia: Pregenital sternite ( Fig. 8) with lateral margins parallel in their basal half, then slightly converging in caudal direction towards the rounded posterior angles; hind margin straight with distinct notch in the middle. Ovipositor In lateral vIew prOtrudIng beyOnd pOsterIOr angle Of pygOfer abOut ⅓ Of Its length from hind margin of pregenital segment to ovipositor tip.

Holotype: ♂ Italy: CalabrIa (CrOtOne), nOrth Of PetIlIa, near lIttle rOad tO PaglIarelle [39°07'33.3"N 16°47'03.6"E], 509 m, 6.vII.2011, GuglIelmInO & BÜckle (lOc. 590), very dry area wIth POaceae , Hyparrhenia , Artemisia campestris , Juncus , Helichrysum , thistles.

Paratypes: Italy: 28♂ 18♀, same data as hOlOtype; 1♂ 2♀, CalabrIa (CrOtOne), rOad frOm Cerenzìa tO CaccurI [39°14'21.3"N 16°47'09.9"E], 570 m, 5.vII.2011, GuglIelmInO & BÜckle (lOc. 586), Open pine forest with Cistus , Poaceae , Hyparrhenia and slightly humid areas with Urtica , Juncus , Rubus , Clematis ; 11♂ 7♀, CalabrIa (CrOtOne), rOad frOm CaccurI tO S. RanIa [39°12'17.6"N 16°46'15.1"E], 581 m, 5.vii.2011, Guglielmino & Bückle (loc. 587) dry or moderately dry ruderal vegetation on road edges with Poaceae , Brachypodium , Rubus , Inula , Cistus , Artemisia campestris .

Distribution: Doratura rikele n. sp. is known until now only from a restricted area in southern Italy: Calabria, hillsides between the Sila Mountains and the Ionian Sea (provinces of Crotone and Catanzaro) and one locality in the Monte Pollino area (Province of Cosenza).

Ecology: We found the species on rather arid hillsides between 500 and 600 m, along fields with mixed ruderal vegetation, on argillous Hyparrhenia biotopes and in a dry Pinus forest with undergrowth of Cistus and sparse Poaceae .

Biology: The species was collected between end of May and the beginning of September; probably it is bivoltine.