Doratura rikele Guglielmino & Bückle, 2021

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 : 42-43

publication ID	https://doi.org/ 10.11646/zootaxa.5112.1.1
publication LSID	lsid:zoobank.org:pub:C2750D92-315A-431F-BCEB-3E20ECD03EA0
DOI	https://doi.org/10.5281/zenodo.6342961
persistent identifier	https://treatment.plazi.org/id/039C8791-BF54-155B-E8B8-842EBF2736AA
treatment provided by	Plazi
scientific name	Doratura rikele Guglielmino & Bückle, 2021
status

Treatment

( Figs 2K View FIGURE 2 ; 3D View FIGURE 3 ; 20L View FIGURE 20 ; 25D View FIGURE 25 ; 27D, E View FIGURE 27 ; 28E, F, L–N View FIGURE 28 ; 29D View FIGURE 29 )

Doratura (Doratura) rikele Guglielmino & Bückle, 2021: 80 In addition to the characters provided in the original description, we give some information on the coloration and mention some further characters concerning the male genital apparatus.

Description. Coloration ( Figs 27D, E View FIGURE 27 ). With the general characters described for the genus Doratura (see above). Vertex in dark specimens with indistinctly delimited spot in posterior half, dark markings in the middle of pronotum and scutellum forming sometimes ± continuous sagittal band from vertex tip to scutellum. Wings without metallic colour, with light veins and ± hyaline cells, in dark specimens cells somewhat fuscous with light veins. Abdomen light with eight longitudinal bands, central ones very close to each other, divided by noticeably light middle line, middle ones consisting in small transverse spots on each tergite, lateral ones irregular, often interrupted near hind border of tergites; in light specimens bands almost lacking, reduced to rows of isolated small spots.

Male genitalia. Connective ( Fig. 2K View FIGURE 2 ) small with basal part shorter than branched part, distinctly narrowing at mid-length. Pygofer ( Fig. 3D View FIGURE 3 ) with more than ten macrosetae along almost its complete caudal margin.

Fifth instar ( Fig. 25D View FIGURE 25 ). The available nymphs (15) are almost completely light, straw coloured without distinct markings. Dark spots on vertex present, but indistinct. In some specimens abdomen with indistinct darker band on both sides, central and lateral area light.

Diagnosis. D. rikele shares with D. heterophyla and D. kusnezovi the stout styles ( Figs 28L–N View FIGURE 28 ) with only slightly tapering apical portion, furthermore the median notch on the hind margin of the female pregenital segment ( Fig. 20L View FIGURE 20 ) and the smooth aedeagus ( Figs 28E, F View FIGURE 28 ) without spinules or teeth. From both taxa it is distinguished by evenly bent and comparatively short styli (in the two other taxa long, in the basal third distinctly curved, in the apical portion almost straight), by the equal width of the aedeagus over most part of its length (distinctly tapering in its apical half in the other two taxa), by the short genital plates ( Fig. 29D View FIGURE 29 ) (distinctly longer in the other taxa), and by the widely rounded (not split-shaped or narrowly rounded) notch on the hind margin of the pregenital segment in females. Furthermore, it differs from D. heterophyla by lower size and shorter wings ( Figs 27D, E View FIGURE 27 ), from D. kusnezovi by the hook-shaped apex of the styles.

Distribution ( Figs 57 View FIGURE 57 , 60A View FIGURE 60 ). Until now, D. rikele was found only in a restricted area in South Italy (Calabria; hillsides between the Sila Mountains and the Ionian Sea).

Ecology. The species occurs on rather arid hillsides at 500– 600 m. It was collected along fields with mixed ruderal vegetation, on argillous Hyparrhenia biotopes and in a dry Pinus forest with undergrowth of Cistus and sparse Poaceae .

Phenology. The species was found between the end of May and the beginning of September; it has probably two generations.