Magadhaideus luchunensis, Xu, Shi-Yan, Long, Jian-Kun & Chen, Xiang-Sheng, 2018

Xu, Shi-Yan, Long, Jian-Kun & Chen, Xiang-Sheng, 2018, Two new species of genus Magadhaideus Long & Chen, 2017 from China (Hemiptera: Fulgoromorpha: Achilidae), ZooKeys 787, pp. 81-90 : 83-85

Magadhaideus luchunensis sp. n. Figs 1-15, 16-21

Type material.

Holotype: ♂, CHINA, Yunnan: Lüchun County, Huanglianshan, sweeping, 14 Aug 2014, Zheng-Xiang Zhou. Paratypes: Yunnan: 2♂♂5♀♀, same data as holotype; 1♂2♀♀, Lüchun County, Lüboshuiku, sweeping, 13 Aug 2014, Mei-Na Guo; 1♂3♀♀, Lüchun County, Lüboshuiku, sweeping, 8 Aug 2017, Yang-Yang Liu.

Diagnosis.

The salient features of the new species include the following: medioventral process of pygofer with two much smaller lateroapical processes (Fig. 12); and phallobase of aedeagus with right basal long lobe single, left apical short lobe directed laterally (Figs 14-15).

Description.

Measurements. Body length (from apex of vertex to tip of forewing): male 4.9-5.1 mm (n = 2), female 5.0-5.5 mm (n = 7); forewing length: male 4.6-4.8 mm (n = 2), female 4.7-5.2 mm (n = 7).

Colouration.

Head yellowish brown. Vertex (Figs 1, 3, 5) along each lateral margin with one dark brown marking at base and another one brown marking at level of anterior margin of eyes, two short longitudinal dark brown markings along median carina apically. Frons (Figure 6) with seven dark brown markings along lateral margin, in middle scattered yellowish-white dots between eyes. Postclypeus pale yellowish, with a transverse brown band near apex. Frontoclypeus (Figure 6) dark brown, with the base and apex pale yellowish. Rostrum yellowish brown, with apex brown. Genae dark brown, as in Figure 7, area along anterior and dorsal margins combined pale yellowish brown, and four transverse short dark brown stripes along anterior margin, a broad transverse yellowish white band under the suture and another narrower one at level of junction of post- and frontclypeus. Eyes (Figs 1-7) generally reddish brown; ocellus (Figs 2, 4, 7) pale reddish. Antennae (Figs 2, 4, 6, 7) pale yellowish brown. Pronotum (Figs 1, 3, 5) brown, lateral lobe with four to five dark brown areas along posterior margin, three carinae pale yellowish brown. Mesonotum (Figs 1, 3, 5) brown, trans verse callus pale, posterior two-thirds between lateral carinae with few scattered ivory-white dots, two dark markings at level of lateral carinae and posterior margin joined with peripheries pale yellowish brown, each lateral angle with a large ivory-white marking along posterior margin. Tegula (Figs 1-5) yellowish brown, along posterior margin paler. Forewing (Figs 1-4, 8) greyish brown, veins pale yellowish brown with small variably sized dark markings scattered, clavus with a broad irregular longitudinal dark brown band from base to apex. Hindwing pale brown, veins brown. Legs with colour pattern as in Figs 2 and 4, abdomen dark brown.

Head and thorax.

Ratio width of vertex at posterior margin to its length in midline 1.8 (Figure 5), anterior third produced before eyes. Ratio length of frons in midline to its maximum width 1.1, ratio maximum of width to width at apex 1.7. Ratio length of postclypeus in midline to length of frons 0.5 (Figure 6). Rostrum with ratio apical to subapical segment 1.4. Lateral lobes of pronotum with three short longitudinal carinae behind eye, ratio length in midline to length of vertex 0.8 (Figure 5). Mesonotum (Figure 5) in midline 5.3 times longer than pronotum, 2.5 times longer than pronotum and vertex combined. Forewing (Figure 8) with ratio of length to maximum width 3.0, vein R with subapical cell. Hindwing (Figure 9) with length to maximum width ratio of 2.0. Post-tibiae with a lateral spine in basal one-fifths, spinal formula 7 –6– 6.

Male genitalia.

Anal segment in dorsal view (Figure 10) with ratio length to maximum width 1.2, basal margin slightly concave, apical margin angularly convex in middle, in lateral view (Figure 11) with basal 2/3 broad, apical 1/3 slender as finger, roundly bent ventrally, lateral margin near middle with a strong spinous process, directed ventrally. Anal style (Figure 10) not exceeding apical margin of anal segment in lateral view. Pygofer in lateral view (Figure 11) with posterior margin with a large short process in the middle. Medioventral process (Figure 12) with width distinctly wider than length, apical not margin truncate, lateroapical margins with two small sharp processes. Genital style (Figure 13) with apical margin roundly convex, widest part at apical 2/5, a tortuous process rising from basal 1/3 of dorsal margin, branched into three lobes. Aedeagus (Figs 14-15) asymmetrical, phallobase in ventral view (Figure 15) with three long lateral processes rising from base, three short processes rising from apex; in dorsal view (Figure 14) with another two long, irregular, dorsal processes rising from base. Phallic appendages straight with apical margin roundly convex, not exceeding apical margin of phallobase.

Female genitalia.

Seventh abdominal sternum in ventral view (Figure 16), posterior margin truncate or slightly concave. Anal segment (Figs 17-18) in dorsal view with ratio of length to its maximum width 1.4, anal stylet not exceeding apical margin of anal segment. Second valvula in ventral view (Figure 20), with ratio of width to its maximum length 1.1. Sclerite on entrance of bursa copulatrix in ventral view (Figure 21) prominent Y-shaped.

Etymology.

This specific name refers to the type locality, Lüchun, Yunnan Province, China.

Host plant.

Unknown.

Distribution.

China (Yunnan).

Remarks.

This species is similar to M. xiphos Long & Chen, 2017, but differs from the latter in: medioventral process of pygofer with two small teeth-like lateroapical processes ( M. xiphos with two finger-like lateroapical processes); phallobase of aedeagus in ventral view with six processes ( M. xiphos with seven processes).