Bambusiphaga laterospina Lv, Li & Chen, 2024

Lv, Sha-Sha, Li, Hong-Xing, Yang, Lin, Zhang, Yu-Bo & Chen, Xiang-Sheng, 2024, Three new species of the genus Bambusiphaga Huang & Ding, 1979 (Hemiptera, Fulgoroidea, Delphacidae, Tropidocephalini) from China, with an updated checklist and key to species, ZooKeys 1217, pp. 291-307 : 291-307

Bambusiphaga laterospina Lv, Li & Chen sp. nov.

Figs 3 , 4

Type material.

Holotype: China • ♂; Yunnan Province, Lushui City ; 25°50'N, 98°54'E; sweeping, 8 August 2023; Yong-Jin Sui and Feng-E Li leg.; IEGU . Paratypes: China • 13 ♂♂, 6 ♀♀; same collection data as for holotype; IEGU .

Diagnosis.

The salient features of the new species include: vertex (Fig. 3 A, C ) light, without dark brown spots; lateral areas of pronotum (Fig. 3 A, C ) with dark brown markings; mesonotum (Fig. 3 A, C ) with dark brown markings; forewings (Fig. 3 F ) with basal ⅓ black; pygofer (Fig. 4 C, D ) with long medioventral and lateroventral processes; inner margin of genital styles (Fig. 4 C, G ) with a toothed process at middle part; apical part of aedeagus (Fig. 4 H ) with two slender spinous processes. This species is similar to B. taibaishana Qin, 2012 , but differs from the latter in: (1) outer part of tegula black brown, inner part yellowish-white (tegula black brown in B. taibaishana ); (2) pygofer with a pair long medioventral and a lateroventral processes (pygofer with a short medioventral process, without lateroventral process in B. taibaishana ); and (3) inner margin of genital styles with a toothed process at middle part (genital styles without process at middle part in B. taibaishana ).

Description.

Measurements. Total length: male 4.7–4.9 mm (N = 14), female 4.9–5.1 mm (N = 6).

Coloration. General color yellowish-white to black (Fig. 3 A – F ). Vertex, frons and clypeus yellowish-white. Genae dark brown at base, yellowish-white at apex. Eyes and ocelli reddish-brown. First segment of antennae yellowish-white except for dorsal side dark brown. Pronotum with lateral carinae yellowish-white at inner side, with two dark brown triangular spots, outer side black. Mesonotum black, lateral margins yellow, apex of scutellum yellowish-white. Outer part of tegula black brown, inner part yellowish-white. Forewings pale yellowish-white, hyaline, blackish-brown at basal 1 / 3. Legs yellowish-white, except coxae of fore and median legs dark brown.

Head and thorax. Vertex (Figs 3 C , 4 A ) shorter in middle line than wide at base (0.90: 1), width at apex narrower than at base (0.82: 1), middle part of anterior margin convex, lateral margins widened towards the end, lateral and submedian carinae distinct, Y-shaped carina distinct. Frons (Figs 3 E , 4 B ) longer in middle line than wide at widest portion (about 2.80: 1), widest at apex, median carina simple. Base of postclypeus (Figs 3 E , 4 B ) as wide as apex of frons. Antennae (Figs 3 E , 4 B ) with first segment longer than wide, shorter than second segment (1: 2.0). Pronotum (Figs 3 C , 4 A ) equal in length to vertex in midline (1.14: 1). Mesonotum (Figs 3 C , 4 A ) longer than 2.08 times pronotum and vertex combined. Forewings (Fig. 3 F ) slender, longer than maximal width (2.57: 1).

Male genitalia. Pygofer ventral margin longer than dorsal margin in lateral view (Fig. 4 D ), in posterior view (Fig. 4 C ) with opening longer than wide, ventral margin with long medioventral process, forked near apical 1 / 2, lateral margins each with a lateroventral process. Anal segment (Fig. 4 C – E ) ring-like, with a thick and long anal process at left lateroapical angle, taper the end. Genital styles (Fig. 4 C, D, G ) moderately long, hogged, wide at base, tapering at the end, inner margin with a toothed process near the middle. Aedeagus (Fig. 4 H ) with phallobase, phallus tubular, curved ventrally, basal part thick, apical part thin, apical part with two slender spinous processes; gonopore located at apex of phallus; phallobase slender and long, arched near basal 1 / 3.

Host plant.

Bamboo.

Distribution.

China (Yunnan Province).

Etymology.

The species name is a combination of the Latin word “ latero - ” and “ spina ”, referring to lateral margins of pygofer, each with a lateroventral process.

Figures

Figure 3. Bambusiphaga laterospina Lv, Li & Chen, sp. nov., male A habitus, dorsal view B habitus, lateral view C head and thorax, dorsal view D head and thorax, lateral view E frons, ventral view F forewing.

Figure 4. Bambusiphaga laterospina Lv, Li & Chen, sp. nov., male A head and thorax, dorsal view B frons, ventral view C male genitalia, posterior view D male genitalia, lateral view E anal segment, posterior view F pygofer, posterior view G genital style, posterior view H aedeagus, lateral view. Scale bars: 0.5 mm (A, B); 0.2 mm (C – H).