Bambusiphaga angulosa, Chen & Yang, 2023

Li, Hong-Xing, Chen, Xiang-Sheng & Yang, Lin, 2023, Three new species of the bamboo-feeding planthopper genus Bambusiphaga Huang & Ding from China (Hemiptera: Fulgoroidea: Delphacidae), European Journal of Taxonomy 875, pp. 142-158 : 149-152

Bambusiphaga angulosa sp. nov.

urn:lsid:zoobank.org:act:588D6FE9-1864-47C0-B4B2-807CB3AC0FA5

Figs 3–4

Diagnosis

Bambusiphaga angulosa sp. nov. can be distinguished from the remaining species of the genus by having the vertex and mesonotum without any dark brown markings, the ventral margin of the anal segment without a process, not incised medially, the pygofer without a spine on the ventral margin, the genital styles without a finger-like process at the base, not forked apically, and the aedeagus without small teeth near the apex, forked at the apex.

Etymology

The specific epithet is derived from the Latin word ‘ angulosa ’, referring to the genital styles having an angular process near the apical ⅓.

Type material

Holotype

CHINA • ♂; Yunnan, Yingjiang County; 24°44′ N, 97°33′ E; 20 Aug. 2018; H.X. Li, F.E. Li and N. Gong leg.; on bamboo; GUGU-DE-BA-20180807 .

Paratypes

CHINA • 3 ♂♂; same collection data as for holotype; GUGU-DE-BA-20180808 to GUGU-DE-BA-20180810 .

Description

MEASUREMENTS. Body length including forewing: male 3.7–3.8 mm (N = 4).

COLORATION. General color yellowish. Eyes and ocelli reddish brown ( Fig. 3A–E ). Forewings pale yellowish orange, veins yellow ( Fig. 3F ).

HEAD AND THORAX. Vertex ( Figs 3C , 4A ) at midline shorter than wide at base (1:1.43), width at apex narrower than at base (1:1.42), anterior margin broadly rounded, lateral and submedian carinae distinct, median carina indistinct. Frons ( Figs 3E , 4B ) in middle line longer than wide, at widest part about 2.33: 1, as wide at base as at apex, median carina simple. Base of postclypeus ( Figs 3E , 4B ) wider than apex of frons. Antennae ( Figs 3E , 4B ) with basal segment with length subequal to width, shorter than second segment (1:3.41). Pronotum ( Figs 3C , 4A ) slightly longer than vertex medially (1: 0.92). Mesonotum ( Figs 3C , 4A ) 1.48 × as long as vertex and pronotum together in middle line. Forewings ( Fig. 3F ) longer in middle line than broad at widest part (3.22: 1), transverse venation located in middle near apex.

MALE GENITALIA. Anal segment ( Fig. 4C ) short, ring-like, ventral margin without a process. Pygofer ( Fig. 4C–E ) in profile with dorsal margin shorter than ventral margin, opening in posterior view longer than wide, no process at ventral margin. Genital styles ( Fig. 4F–G ) in posterior view moderately long, narrow and divergent, lateral margins subparallel, sinuate, tapering apically, with an angular process near apical ⅓, in profile ( Fig. 4G ) with truncate apical margin, near apex with a stout process. Aedeagus without phyllobase. Phallus ( Fig. 4H–I ) slender, very long, tubular, in profile ( Fig. 4I ) broad at base, narrowing apically, strongly curved dorsally at basal ⅓ and curved ventrally at apical ⅓, forked at apex, with a node near apex.

Host plant

Bambusoideae.

Distribution

China (Yunnan).

Remarks

This new species is similar to B. parvula sp. nov. in general appearance, but differs in the following: (1) forewings ( Fig. 3F ) without dark brown mark (vs forewings ( Fig. 1F ) with a small dark brown mark along cross veins CuP-CuA 1 in B. parvula sp. nov.); (2) genital styles ( Fig. 4F–G ) with a small process near apical ⅓ (vs genital styles ( Fig. 2F–G ) with a large process near apical ⅓ in B. parvula sp. nov.); (3) aedeagus ( Fig. 4H–I ) without spine near apex, forked at apex (vs aedeagus ( Fig. 2H–I ) with some small spines near apex, not forked at apex in B. parvula sp. nov.).

Figures

Fig. 3. Bambusiphaga angulosa sp. nov., ♂, holotype (GUGU-DE-BA-20180807). A. Male adult, dorsal view. B. Male adult, lateral view. C. Head and thorax, dorsal view. D. Head and thorax, lateral view. E. Face. F. Forewing. Scale bars = 0.5 mm.

Fig. 4. Bambusiphaga angulosa sp. nov, ♂., holotype (GUGU-DE-BA-20180807). A. Head and thorax, dorsal view. B. Face. C. Male genitalia, posterior view. D. Male genitalia, lateral view. E. Pygofer, posterior view. F. Genital style, posterior view. G. Genital style, lateral view. H. Aedeagus, posterior view. I. Aedeagus, lateral view. Scale bars: A–B = 0.5 mm; C–G, I = 0.2 mm; H = 0.1 mm.

Fig. 1. Bambusiphaga parvula sp. nov., ♂, holotype (GUGU-DE-BA-20180801). A. Male adult, dorsal view. B. Same, lateral view. C. Head and thorax, dorsal view. D. Head and thorax, lateral view. E. Face. F. Forewing. Scale bars = 0.5 mm.

Fig. 2. Bambusiphaga parvula sp. nov., ♂, holotype (GUGU-DE-BA-20180801). A. Head and thorax, dorsal view. B. Face.C. Male genitalia, posterior view. D. Same, lateral view. E. Pygofer, posterior view. F. Genital style, posterior view. G. Genital style, lateral view. H. Aedeagus, posterior view. I. Aedeagus, lateral view. Scale bars: A–B = 0.5mm; C–I = 0.2 mm.