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Phlugiolopsis cangyuanensis Pan, Pang & Bian, 2024, sp. nov.

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Zenodo2024-06-28 更新2024-06-29 收录
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Phlugiolopsis cangyuanensis sp. nov. ȑā吟ª Figure 6 Description. Male. Body small. Fastigium verticis conical, with a fine longitudinal furrow, apex rounded. Eyes hemispherical, projecting outwards (Fig. 6A). Apical segments of maxillary palpi longer than subapical ones, apices slightly inflated. Pronotum short, anterior margin of pronotum straight, posterior margin obtusely rounded (Fig. 6A); lateral lobes longer than high, narrowing to backwards, humeral sinus indistinct (Fig. 6B). Tegmina overlapped and concealed under the pronotum, reaching the posterior margin of 2nd abdominal tergite, apices rounded. Hind wings absent. Fore coxae with 1 small spine. Apices of genicular lobes of hind femora obtusely rounded. Fore tibiae and hind tibiae ventrally with 3 internal and 4 external spines and 1 pair of apical spines; tibial tympana open on both sides, long oval, internal tympanum larger than external one. Hind tibiae with 25–26 internal spines and 23–24 external spines on dorsal surfaces, ventral surfaces with 2–4 pairs of spines, apices with 1 pair of dorsal spurs and 2 pairs of ventral spurs. Posterior margin of tenth abdominal tergite slightly rounded concave in middle (Fig. 6D). Cerci long, base stout, slightly narrowing, basal third with 1 digitate lobe on interno-dorsal margin, apices of the lobe pointing inwards (Fig. 6D), interno-ventral margin with 1 lobe (Fig. 6H); two thirds of apical area incurved, spine-shaped, apices subacute. Subgenital plate with basal half broader, narrowing toward tip, basal margin concave, lateral margins rolled dorsally, apical area projecting with posterior margin obtusely rounded (Fig. 6G). Styli long, basal half slightly stout, apices obtuse, narrowing toward tip, inserted on both sides of posterior margin of subgenital plate. Female: Unknown. Coloration. Body yellowish brown, with many small brown spots. Internal margins of antennal socket, scape and pedicel dark brown. Internal margins of flagellum dark brown with light brown rings on other segments. Dorsal surface of head with four longitudinal black brown stripes, inner stripes close to each other and fused at the apices of fastigium verticis, the external stripes extending to the inside of antennal socket. Pronotum blackish brown with a longitudinal brown stripe on both sides, which reaching the middle of metazona. Apices of femora blackish brown, basal and apical area of tibiae light black brown. Apices of genicular lobes of dark brown. Abdominal tergite light black brown, basal half of the lateral margins yellowish brown, apical half dark brown.Abdominal sternites blackish brown. Measurements (mm). BL: ♂ 6.5–6.9; PL: ♂ 3.6–3.7; TL: ♂ 1.8–2.0; HFL: ♂ 7.8–8.2. Material examined. Holotype: male, Yakou, Cangyaun, Yunnan, August 8, 2022, coll. by Xiangyi Lu and Xiaoyu Peng. Paratypes: 2 males, the other information as holotype. Distribution. Yunnan (Cangyuan). Discussion. The cerci of the new species are similar to Phlugiolopsis (Tribranchis) circolobosis Bian, Shi & Chang, 2013 (Chinese name: 圆叶吟ª), but differ from the latter by body with many brown spots, posterior margin of male subgenital plate rounded, apices inconspicuously protruding. Etymology. Named after the type locality.

沧源突顶螽(Phlugiolopsis cangyuanensis)新种 图6 形态描述 雄虫:体小型。头顶(fastigium verticis)呈圆锥形,具细纵沟,顶端圆钝。复眼半球形,向外突出(图6A)。下颚须(maxillary palpi)末节长于亚末节,顶端略膨大。前胸背板(pronotum)短,前缘平直,后缘钝圆(图6A);侧片长大于高,向后渐狭,肩凹不明显(图6B)。前翅(tegmina)相互重叠,隐藏于前胸背板之下,伸达第2腹节背板后缘,顶端圆钝。无后翅。前足基节具1小刺。后足股节膝叶(genicular lobes)顶端钝圆。前足胫节和后足胫节腹面具内刺3枚、外刺4枚,以及1对端刺;胫节听器(tympana)两侧均为开放式,呈长卵形,内听器大于外听器。后足胫节背面具内刺25~26枚、外刺23~24枚,腹面具2~4对刺,顶端具1对背距和2对腹距。第10腹节背板(abdominal tergite)后缘中部略呈圆弧形凹陷(图6D)。尾须(cerci)长,基部粗壮,略渐狭,基部1/3的内背缘具1指状叶,叶端向内指(图6D),内腹缘具1叶(图6H);端部2/3段内弯,呈刺形,顶端近尖。下生殖板(subgenital plate)基部较宽,向端部渐狭,基部边缘凹陷,侧缘向背面反卷,端部突出,后缘钝圆(图6G)。针突(styli)长,基部略粗壮,顶端钝圆,向端部渐狭,着生于下生殖板后缘两侧。雌虫:未知。 体色:体黄褐色,具许多细小棕斑。触角窝内缘、柄节和梗节呈深褐色。鞭节内缘深褐色,其余环节具浅褐色环纹。头部背面具4条深褐色纵纹,内侧两条彼此靠近,在头顶顶端处愈合,外侧两条延伸至触角窝内侧。前胸背板黑褐色,两侧各具1条纵褐纹,延伸至后叶中部。股节顶端黑褐色,胫节基部和端部区域浅黑褐色。膝叶顶端呈深褐色。腹背板浅黑褐色,侧缘基部一半黄褐色,端部一半深褐色。腹腹板黑褐色。 测量数据(单位:毫米):体长(BL):雄虫6.5~6.9;前胸背板长(PL):雄虫3.6~3.7;前翅长(TL):雄虫1.8~2.0;后足股节长(HFL):雄虫7.8~8.2。 检视标本:正模:雄虫,云南沧源亚口,2022年8月8日,卢相懿、彭晓宇采。副模:2只雄虫,其余采集信息与正模相同。 分布:云南(沧源)。 讨论:本新种的尾须与圆叶突顶螽(Phlugiolopsis (Tribranchis) circolobosis Bian, Shi & Chang, 2013)相似,但本新种体具众多棕斑,雄虫下生殖板后缘圆钝,顶端不明显突出,可与后者相区别。 词源:本种以模式产地命名。

提供机构:
Pan, Yangyang
创建时间:
2024-06-27
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