Neobelocera russa, Yang & Chen, 2020

LI, Hong-Xing, Yang, Lin & Chen, Xiang-Sheng, 2020, Two new species of the bamboo-feeding planthopper genus Neobelocera Ding & Yang, 1986 from China (Hemiptera, Fulgoroidea, Delphacidae), European Journal of Taxonomy 641, pp. 1-14 : 8-11

Neobelocera russa sp. nov.

urn:lsid:zoobank.org:act:9D61BFF2-91B3-4BF5-92C4-DBB1C5E5ED8E

Figs 3–4

Diagnosis

The salient features of the new species include the following: frons brown, except broad transversal stripe between ocelli and narrow stripe at apex yellowish white, along near apex of median carina with several short transversal stripes, yellowish white ( Fig. 3E ); genae with 2–3 light brown spots ( Fig. 3E ); antennal segment I subsagittate, markedly flattened, with median longitudinal carina, the ventral apical angle longer than dorsal apical angle ( Fig. 4B ); ventral margin of pygofer with 3 medioventral processes short, median one slightly longer than lateral ones ( Fig. 4D ); genital styles swollen subapically ( Fig. 4H ).

Etymology

The species epithet is derived from the Latin word ‘ russa ’, referring to the body with rust color.

Type material

Holotype

CHINA • ♂; Guizhou Province, Suiyang County; 27°57′ N, 107°10′ E; 16 Aug. 2010; J.K. Long leg.; on bamboo; GUGC-FS-TN-20100801 .

Paratypes

CHINA • 3 ♂♂; same collection data as for holotype; GUGC-FS-TN-20100802 to 20100804 .

Description

MEASUREMENTS. Body length including forewing: male 4.0– 4.3 mm (N = 3); forewing length: male 3.6–3.7 mm (N = 3).

COLORATION. General coloration dark yellowish brown ( Fig. 3 A–F). Vertex, pronotum, mesonotum dirty yellowish brown, except Y-shaped carina of vertex, all carinae of pronotum and mesonotum yellowish white ( Fig. 3C ). Frons and genae brown, except broad transversal stripe below level of lower margin of eyes and narrow stripe of apex yellowish white, along near apex of median carina of frons and inner margin of lateral carinae of genae with several short transversal stripes, yellowish white. Clypeus yellowish brown to brown ( Fig. 3E ). Eyes dirty yellowish brown. Ocelli reddish brown. Antennae brown, except lateral margins of first segment yellowish white ( Fig. 3E ). Legs yellowish white, with dark brown maculations. Forewing light yellowish white, almost hyaline, basal part near costal margin with big infuscate markings, and apical part from transverse veins to apex with dark brown markings, veins with white spots ( Fig. 3F ). Wings hyaline with veins dark brown.

HEAD AND THORAX. Head including eyes almost as wide as pronotum ( Fig. 4A ). Vertex wider at base than long medially about 2.57: 1 ( Fig. 4A ). Frons in middle line longer than wide at widest part about 1.74: 1, widest above level of lower margin of eyes. Postclypeus at base almost as wide as frons at apex ( Fig. 4B ). Antennae with first segment shorter than second segment about 0.65: 1, second segment cylindrical, longer than wide about 2.80: 1 ( Fig. 4B ). Pronotum subequal to vertex medially. Mesonotum longer than vertex and pronotum combined about 2.25: 1 ( Fig. 4A ). Forewing longer in middle line than wide at widest part about 3.25: 1 ( Fig. 4C ).

MALE GENITALIA. Anal segment small, ring-like ( Fig. 4D ). Pygofer in profile much longer ventrally than dorsally ( Fig. 4E ), in posterior view with opening longer than wide, ventral margin with three medioventral processes, median one longer than lateral ones, truncate apically, lateral ones stout, tapering ( Fig. 4D ). Aedeagus ( Fig. 4 F–G) with phallobase, phallus tubular, bent ventrad medially, with node at apex, middle dorsal with a spinous process, directed dorsad, apex with 2 long spinous processes. In addition, 2 processes at subapical part of phallus, right one strongly curved. Phallobase slender, tubular, arising from base of aedeagus, running dorsad, then curving caudad, after median part, turned left then ventrad, tapering apically. Genital styles simple, long, reaching to ventral margin of anal segment, swollen subapically ( Fig. 4H ).

Host plant

Bamboo.

Distribution

China (Guizhou).

Remarks

This new species is assigned to the genus Neobelocera because the antennal segment I is subsagittate, markedly flattened, with a median longitudinal carina, the ventral apical angle longer than dorsal apical angle ( Fig. 4B ). This species is similar to N. lanpingensis Chen, 2003 in having the body elongate ( Fig. 3 A–B), forewings long and narrow, apex oblique and tapering, with blackish brown markings, and with white spots or white short stripes at intervals ( Fig. 3F ), frons with pale transverse band below level of lower margin of eyes ( Fig. 3E ), male pygofer with medioventral processes ( Fig. 4D ), phallus with four spinous processes at apex and near apex, phallobase slender and long ( Fig. 4 F–G). However, it can be distinguished from the latter by the following features: (1) frons ( Fig. 3E ) along near apex of median carina with several short transversal stripes, yellowish white (in N. lanpingensis , frons without yellowish white transverse stripes subapically); (2) genae ( Fig. 3E ) with 2–3 light brown spots (in N. lanpingensis , genae without light brown spot); (3) medioventral processes of pygofer ( Fig. 4D ) with median one longer than lateral ones, truncate apically, lateral ones stout, tapering (in N. lanpingensis , medioventral processes with median one short, tapering, lateral ones very slender, long, sinuate); (4) genital styles ( Fig. 4H ) swollen subapically (in N. lanpingensis , genital styles tapering apically).

Figures

Fig. 3. Neobelocera russa sp. nov., holotype (GUGC-FS-TN-20100801). A. Male habitus, dorsal view. B. Same, lateral view. C. Head and thorax, dorsal view. D. Same, lateral view. E. Face. F. Forewing.

Fig. 4. Neobelocera russa sp. nov., holotype (GUGC-FS-TN-20100801). A. Head and thorax, dorsal view. B. Face. C. Forewing. D. Male genitalia, posterior view. E. Same, lateral view. F. Aedeagus, posterior view. G. Same, lateral view. H. Genital style, posterior view. I. Same, lateral view. Scale bars: A–B, D–I = 0.2 mm; C = 0.5 mm.