Mitjaevia ramosa, Luo & Song & Song, 2021

Luo, Guimei, Song, Qingfa & Song, Yuehua, 2021, Two new species of the leafhopper genus Mitjaevia Dworakowska from China (Hemiptera, Cicadellidae, Typhlocybinae), Biodiversity Data Journal 9, pp. 72420-72420 : 72420

Mitjaevia ramosa sp. n.

Materials

Type status: Holotype. Occurrence: individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Mitjaevia ramosa; order: Hemiptera ; family: Cicadellidae ; genus: Mitjaevia ; specificEpithet: ramosa; Location : country: China; stateProvince: Guizhou; county: Huajiang ; locationRemarks: label transliteration: " Guizhou Huajiang, 23. 5. 2019, coll. Zhouwei Yuan and Xiao Yang"; Record Level: collectionCode: Insects; basisOfRecord: Preserved Specimen Type status: Paratype. Occurrence: individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Mitjaevia ramosa; order: Hemiptera ; family: Cicadellidae ; genus: Mitjaevia ; specificEpithet: ramosa; Location : country: China; stateProvince: Guizhou; county: Huajiang ; locationRemarks: label transliteration: " Guizhou Huajiang, 23. 5. 2019, coll. Zhouwei Yuan and Xiao Yang"; Record Level: collectionCode: Insects; basisOfRecord: Preserved Specimen

Description

Body length, males 2.50-2.70 mm. Vertex (Fig. 4 A) light yellow, with pair of small black spots. Coronal suture short, with two irregular black markings on both sides (Fig. 4 A and C). Eyes greyish-black. Pronotum yellowish, with symmetrical pale-yellow oval impressed patches medially, (Fig. 4 A and C). Scutellum yellow, with black lateral triangles, transverse impression distinct. Face light brownish-yellow, frontoclypeus with black patches at sides basally; anteclypeus dark brown (Fig. 4 D). Forewing with orange and grey patches. Abdominal apodemes small, extended to hind margin of 3rd sternite (Fig. 5 H).

Diagnosis

Male genitalia. Pygofer lobe broad, with numerous microtrichia and fine setae scattered near caudal part and dorsal margin. Pygofer dorsal appendage expanded basally, tapering to apex and hook-like apically (Fig. 5 A and B). Subgenital plate short, wide and midfield slightly concave, with three macrosetae, numerous peg-like setae along dorsal margin (Fig. 5 C). Style apex expanded, "curved neck" area slender, pre-apical lobe obvious, enlarged (Fig. 5 D). Pre-atrium of aedeagus little expanded in lateral view, aedeagus shaft slender, with pair of "finger-like" processes arising from base of shaft and extending outwards, bifurcated into two branches apically (Fig. 5 E and F). Connective Y-shaped, two lateral arms and stem developed, median anterior lobe well developed (Fig. 5 G).

Etymology

The new species is named from the Latin word “ramosus”, referring to the aedeagal shaft with two bifurcated branches at apex.

Taxon discussion

The new species is similar to Mitjaevia diana ( Distant 1918), but differs in having the "finger-like" processes arising from base of aedeagal shaft and extending outwards; two bifurcated branches at apex; connective Y-shaped and stem developed.

Distribution. Guizhou Province.

Figures

Figure 4. Mitjaevia ramosa sp. n. A. Habitus, dorsal view B. Habitus, lateral view C. Head and thorax, dorsal view D. Face.

Figure 5. Mitjaevia ramosa sp. n. A. Male pygofer, lateral view B. Pygofer dorsal appendage, lateral view C. Subgenital plate D. Style E. Aedeagus, ventral view F. Aedeagus, lateral view G. Connective H. Abdominal apodemes.