Andes luchunensis Lv, Zhi & Chen 2026, sp. nov.
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2026
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| author | Lv, Sha-Sha Zhi, Yan Yang, Lin Long, Jian-Kun Chang, Zhi-Min Zhang, Yu-Bo Chen, Xiang-Sheng |
| author_facet | Lv, Sha-Sha Zhi, Yan Yang, Lin Long, Jian-Kun Chang, Zhi-Min Zhang, Yu-Bo Chen, Xiang-Sheng |
| contents | <p><i>Andes luchunensis</i> Lv, Zhi & Chen sp. nov.</p><p>Figs 3, 4, 9</p><p><b>Type materials.</b></p><p><i>Holotype</i>: CHINA • ‘ ♂: Yunnan Province, Lüchun County, Huanglianshan National Nature Reserve; 22°85'N, 102°20'E; sweeping, 4 August 2023; Sha-Sha Lv leg. ’; IEGU. <i>Paratypes</i>: CHINA • ‘ 8 ♂♂ 7 ♀♀; Yunnan Province, Lüchun County, Huanglianshan National Nature Reserve; 22°85'N, 102°20'E; sweeping, 4 August 2023; Sha-Sha Lv, Yong-Jin Sui and Feng-E Li leg. ’; IEGU.</p><p><b>Diagnosis.</b></p><p>Diagnostic characters of the new species include: basal half of forewings (Fig. 3 E) with claw-shaped marking; vertex (Fig. 3 A, C) as long as wide; apical 2 / 5 to 4 / 5 of gonostyli (Fig. 3 G, I) widened; ventral margin of periandrium apically with two bifurcated spinose processes, apical part with a triangular process on right side.</p><p><b>Description.</b></p><p><i>Measurements</i>. Total length: male 7.2–7.5 mm (<i>N</i> = 9), female 7.5–8.6 mm (<i>N</i> = 7).</p><p><i>Coloration</i>. General color (Fig. 3 A, B) yellowish brown. Vertex (Fig. 3 A, C) dark brown. Eyes (Fig. 3 A – D) brownish-gray with red. Ocelli (Fig. 3 B, D) light yellow with reddish, semi-translucent. Frons (Fig. 3 D) blackish-brown at middle part, lateral parts yellowish-brown. Postclypeus (Fig. 3 D) yellowish brown, anteclypeus brown. Pronotum (Fig. 3 A, C) dark brown at upper part, rest light grayish yellow. Mesonotum (Fig. 3 A, C) dark brown between two lateral carinae, rest yellowish brown. Tegulae (Fig. 3 A, C) yellowish brown. Forewings (Fig. 3 E) semi-translucent, with many light yellowish brown to dark brown spots, basal half with claw-shaped marking, with pterostigma yellowish brown, veins and tubercles yellowish brown to dark brown, as shown in Fig. 3 E. Hind legs yellowish brown. Abdomen yellowish brown to dark brown ventrally.</p><p><i>Head and thorax</i>. Vertex (Fig. 3 A, C) with length and width approximately equal, width at apex narrower than at base (about 1: 2.15), anterior margin arc-shaped, posterior margin V-shaped, lateral carina strongly developed, median carina absent. Frons (Fig. 3 D) longer in middle line than wide at widest portion (about 3.16: 1). Pronotum (Fig. 3 A, C) shorter than vertex in midline (about 1: 2.86), posterior margin forming a right angle. Mesonotum (Fig. 3 A, C) about 1.84 times longer than pronotum and vertex combined. Forewings (Fig. 3 E) about 2.29 times as long as wide, with twelve apical cells and seven subapical cells, RP 3 branches, MP with 5 terminals: MP 11, MP 12, MP 2, MP 3, and MP 4, fork MP 1 + MP 2 basad of fork MP 3 + MP 4. Hind tibiae with four lateral spines. Metatibiotarsal formula 8 / 8, second segment of hind tarsus with three platellae.</p><p><i>Male terminalia</i>. Pygofer (Fig. 3 F, G) in ventral view symmetrical; in lateral view lateral lobes arcuate and extended caudally. Medioventral process nearly cylindrical in ventral view, apical margin rounded. Anal segment (Fig. 3 F, H) flat, tubular, in lateral view, dorsal margin nearly straight, apical part expanded ventrally; about 2.74 times as long as wide in dorsal view; anal style fingerlike, not extending beyond anal segment. Gonostyli (Fig. 3 G, I) symmetrical ventrally, inner margin with two small protrusions at basal 1 / 3, apical 2 / 5 to 4 / 5 widen; in lateral view dorsal margins V-shaped, apical half to 4 / 5 slightly widen. Aedeagus (Fig. 3 J – M) with eight processes. Ventral margin of periandrium with a bifurcated process at apical part, dorsal one long, bend at the middle, directed ventrad, ventral one straight, directed ventrocephalad; on right side, apical part with a triangular process, directed dorsocaudad; middle part with a bifurcated process, longer one curved, directed dorsocephalad, shorter one directed ventrocephalad. Endosoma bent dorsally, apical part with three spinose processes, middle one longest, arc bent, directed dorsocephalad, the remaining two processes of approximately the same length, opposite direction.</p><p><i>Female terminalia</i>. Tergite IX (Fig. 4 A, B, D) moderately sclerotized, with a large, nearly elliptical wax plate. Anal segment (Fig. 4 C) nearly rectangular, about 1.74 times as long as wide in dorsal view, anal style linguiform. Gonapophysis VIII (Fig. 4 E) elongate and slightly curved upwards. Gonapophysis IX (Fig. 4 F) with two middle teeth, distance ratio between first middle tooth to apex and length of denticulate portion about 1.66. Gonoplac (Fig. 4 G) rod-like, about 7.13 times as long as wide in lateral view. Posterior vagina pattern as shown in Fig. 4 H.</p><p><b>Distribution.</b></p><p>China (Yunnan Province).</p><p><b>Etymology.</b></p><p>The new species is named after its type locality which is located in Lüchun County, Yunnan Province.</p><p><b>Remarks.</b></p><p>This species is similar to <i>A. pallidus</i> Wang & Chen, 2022, but differs from the latter species in: (1) general color yellowish brown (yellowish white in <i>A. pallidus</i>); (2) ventral margin of periandrium apically with two bifurcated spinose processes (with one bifurcated spinose process in <i>A. pallidus</i>); and (3) apical part of endosoma with three spinose processes (with one spinose process in <i>A. pallidus</i>).</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_18473179 |
| institution | Zenodo |
| language | |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Andes luchunensis Lv, Zhi & Chen 2026, sp. nov. Lv, Sha-Sha Zhi, Yan Yang, Lin Long, Jian-Kun Chang, Zhi-Min Zhang, Yu-Bo Chen, Xiang-Sheng Biodiversity Taxonomy Animalia Arthropoda Insecta Hemiptera Cixiidae Andes Andes luchunensis <p><i>Andes luchunensis</i> Lv, Zhi & Chen sp. nov.</p><p>Figs 3, 4, 9</p><p><b>Type materials.</b></p><p><i>Holotype</i>: CHINA • ‘ ♂: Yunnan Province, Lüchun County, Huanglianshan National Nature Reserve; 22°85'N, 102°20'E; sweeping, 4 August 2023; Sha-Sha Lv leg. ’; IEGU. <i>Paratypes</i>: CHINA • ‘ 8 ♂♂ 7 ♀♀; Yunnan Province, Lüchun County, Huanglianshan National Nature Reserve; 22°85'N, 102°20'E; sweeping, 4 August 2023; Sha-Sha Lv, Yong-Jin Sui and Feng-E Li leg. ’; IEGU.</p><p><b>Diagnosis.</b></p><p>Diagnostic characters of the new species include: basal half of forewings (Fig. 3 E) with claw-shaped marking; vertex (Fig. 3 A, C) as long as wide; apical 2 / 5 to 4 / 5 of gonostyli (Fig. 3 G, I) widened; ventral margin of periandrium apically with two bifurcated spinose processes, apical part with a triangular process on right side.</p><p><b>Description.</b></p><p><i>Measurements</i>. Total length: male 7.2–7.5 mm (<i>N</i> = 9), female 7.5–8.6 mm (<i>N</i> = 7).</p><p><i>Coloration</i>. General color (Fig. 3 A, B) yellowish brown. Vertex (Fig. 3 A, C) dark brown. Eyes (Fig. 3 A – D) brownish-gray with red. Ocelli (Fig. 3 B, D) light yellow with reddish, semi-translucent. Frons (Fig. 3 D) blackish-brown at middle part, lateral parts yellowish-brown. Postclypeus (Fig. 3 D) yellowish brown, anteclypeus brown. Pronotum (Fig. 3 A, C) dark brown at upper part, rest light grayish yellow. Mesonotum (Fig. 3 A, C) dark brown between two lateral carinae, rest yellowish brown. Tegulae (Fig. 3 A, C) yellowish brown. Forewings (Fig. 3 E) semi-translucent, with many light yellowish brown to dark brown spots, basal half with claw-shaped marking, with pterostigma yellowish brown, veins and tubercles yellowish brown to dark brown, as shown in Fig. 3 E. Hind legs yellowish brown. Abdomen yellowish brown to dark brown ventrally.</p><p><i>Head and thorax</i>. Vertex (Fig. 3 A, C) with length and width approximately equal, width at apex narrower than at base (about 1: 2.15), anterior margin arc-shaped, posterior margin V-shaped, lateral carina strongly developed, median carina absent. Frons (Fig. 3 D) longer in middle line than wide at widest portion (about 3.16: 1). Pronotum (Fig. 3 A, C) shorter than vertex in midline (about 1: 2.86), posterior margin forming a right angle. Mesonotum (Fig. 3 A, C) about 1.84 times longer than pronotum and vertex combined. Forewings (Fig. 3 E) about 2.29 times as long as wide, with twelve apical cells and seven subapical cells, RP 3 branches, MP with 5 terminals: MP 11, MP 12, MP 2, MP 3, and MP 4, fork MP 1 + MP 2 basad of fork MP 3 + MP 4. Hind tibiae with four lateral spines. Metatibiotarsal formula 8 / 8, second segment of hind tarsus with three platellae.</p><p><i>Male terminalia</i>. Pygofer (Fig. 3 F, G) in ventral view symmetrical; in lateral view lateral lobes arcuate and extended caudally. Medioventral process nearly cylindrical in ventral view, apical margin rounded. Anal segment (Fig. 3 F, H) flat, tubular, in lateral view, dorsal margin nearly straight, apical part expanded ventrally; about 2.74 times as long as wide in dorsal view; anal style fingerlike, not extending beyond anal segment. Gonostyli (Fig. 3 G, I) symmetrical ventrally, inner margin with two small protrusions at basal 1 / 3, apical 2 / 5 to 4 / 5 widen; in lateral view dorsal margins V-shaped, apical half to 4 / 5 slightly widen. Aedeagus (Fig. 3 J – M) with eight processes. Ventral margin of periandrium with a bifurcated process at apical part, dorsal one long, bend at the middle, directed ventrad, ventral one straight, directed ventrocephalad; on right side, apical part with a triangular process, directed dorsocaudad; middle part with a bifurcated process, longer one curved, directed dorsocephalad, shorter one directed ventrocephalad. Endosoma bent dorsally, apical part with three spinose processes, middle one longest, arc bent, directed dorsocephalad, the remaining two processes of approximately the same length, opposite direction.</p><p><i>Female terminalia</i>. Tergite IX (Fig. 4 A, B, D) moderately sclerotized, with a large, nearly elliptical wax plate. Anal segment (Fig. 4 C) nearly rectangular, about 1.74 times as long as wide in dorsal view, anal style linguiform. Gonapophysis VIII (Fig. 4 E) elongate and slightly curved upwards. Gonapophysis IX (Fig. 4 F) with two middle teeth, distance ratio between first middle tooth to apex and length of denticulate portion about 1.66. Gonoplac (Fig. 4 G) rod-like, about 7.13 times as long as wide in lateral view. Posterior vagina pattern as shown in Fig. 4 H.</p><p><b>Distribution.</b></p><p>China (Yunnan Province).</p><p><b>Etymology.</b></p><p>The new species is named after its type locality which is located in Lüchun County, Yunnan Province.</p><p><b>Remarks.</b></p><p>This species is similar to <i>A. pallidus</i> Wang & Chen, 2022, but differs from the latter species in: (1) general color yellowish brown (yellowish white in <i>A. pallidus</i>); (2) ventral margin of periandrium apically with two bifurcated spinose processes (with one bifurcated spinose process in <i>A. pallidus</i>); and (3) apical part of endosoma with three spinose processes (with one spinose process in <i>A. pallidus</i>).</p> |
| title | Andes luchunensis Lv, Zhi & Chen 2026, sp. nov. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Hemiptera Cixiidae Andes Andes luchunensis |
| url | https://doi.org/10.5281/zenodo.18473179 |