Mitjaevia bifurcata, 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 bifurcata sp. n.

Materials

Type status: Holotype. Occurrence: individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Mitjaevia bifurcata; order: Hemiptera ; family: Cicadellidae ; genus: Mitjaevia ; specificEpithet: bifurcata; Location : country: China; stateProvince: Guizhou; locality: Bijie City , Qixinguan District , Salaxi Town ; locationRemarks: label transliteration: " Guizhou, Bijie, 27.5.2019, coll. Zhouwei Yuan and Xiao Yang"; Record Level: collectionCode: Insects; basisOfRecord: Preserved Specimen Type status: Paratype. Occurrence: individualCount: 8; sex: 4 males, 4 females; lifeStage: adult; Taxon: scientificName: Mitjaevia bifurcata; order: Hemiptera ; family: Cicadellidae ; genus: Mitjaevia ; specificEpithet: bifurcata; Location : country: China; stateProvince: Guizhou; locality: Bijie City , Qixinguan District , Salaxi Town ; ; locationRemarks: label transliteration: " Guizhou,Bijie, 27.5.2019, coll. Zhouwei Yuan and Xiao Yang"; Record Level: collectionCode: Insects; basisOfRecord: Preserved Specimen

Description

Body length, males 2.9-3.0 mm, females 2.8-2.9 mm. Vertex (Fig. 1 A) pale yellow, with pair of small black spots. Coronal suture short, with two irregular markings on sides (Fig. 1 A and C). Eyes greyish-black. Pronotum yellow, with irregularly dark brown or black patches (Fig. 1 A and C). Scutellum light yellow, with basal triangles black and transverse impression distinct (Fig. 1 A and C). Face light brownish-yellow, frontoclypeus with black patches at sides basally (Fig. 1 D). Forewing milky white, with light brown patches. Abdominal apodemes small, not extended to hind margin of 3rd sternite (Fig. 2 G).

Diagnosis

Male genitalia. Pygofer lobe broad, with many microtrichia and fine setae scattered on lateral surface, occasionally with long fine setae. Pygofer dorsal appendage expanded basally, caudal margin round (Fig. 2 A). Subgenital plate short, with three long macrosetae on lateral surface and row of peg-like setae along dorsal margin to medium area, with sparse fine small setae on apical portion (Fig. 2 B). Style long, with pre-apical lobe moderately large (Fig. 2 C). Preatrium of aedeagus short and aedeagus shaft slender; at the base of aedeagus with small appendages; dorsal apodeme branched apically; gonopore apical on ventral surface (Fig. 2 D and E). Connective Y-shaped, arms and stem developed, with long and thin central lobe (Fig. 2 F).

Female genitalia. Female 7th sternite as in Fig. 3 A and B. Valvula I elongate, curved dorsad, apical portion pointed, with dense imbricate carving (Fig. 3 C and D). Valvulae II elongate, gradually expanded from base to top and divided into two blades, one of which has dentate protrusions (Fig. 3 E and F). Valvula III leaf-like, with microtrichia on dorsal margin and apex (Fig. 3 G and H).

Etymology

The new species is named from the Latin word “bifurcatus”, referring to dorsal apodeme branched of the aedeagus.

Taxon discussion

This species has a similar aedeagus shape to Mitjaevia protuberanta Song, Li, Xiong, 2011 ( Song et al. 2011), but it can be distinguished by the aedeagal shaft slender; pre-atrium of aedeagus short, dorsal apodeme branched apically and without triangle-like processes subapically.

Distribution. Guizhou Province.

Figures

Figure 1. Mitjaevia bifurcata sp. n. A. Habitus, dorsal view B. Habitus, lateral view C. Head and thorax, dorsal view D. Face.

Figure 2. Mitjaevia bifurcata sp. n. A. Male pygofer, lateral view B. Subgenital plate C. Style D. Aedeagus, ventral view E. Aedeagus, lateral view F. Connective G. Abdominal apodemes.

Figure 3. Mitjaevia bifurcata sp. n. A. Female pygofer B. Sternite VII C. Valvula I D. Partial enlargement of valvula I E. Valvulae II F. Partial enlargement of valvulae II G. Valvula III H. Partial enlargement of valvula III.