澳大利亚圆织蜘蛛一新属，性别大小极不相同(蜘蛛目，蜘蛛科)

IF 1.6 2区生物学 Q2 ZOOLOGY

Zoosystematics and Evolution Pub Date : 2022-05-05 DOI:10.3897/zse.98.82649

V. Framenau, P. Castanheira

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引用次数: 1

摘要

描述了1757年新发现的澳大利亚蜘蛛蛛科红树蛛属。它的特征是极端的性别尺寸二态性(eSSD)，雌性(全长8-10毫米)比雄性(2.5-3毫米)大3至5倍。虽然Mangrovia与非正式的澳大利亚“backobourkiine”分支在雄性肢髌骨上有一个固定的分支，但该属可能与“zealaraneines”或相关属更接近。除了eSSD和单髌骨脊柱外，该属的特征是在雄性中有明显的亚末端栓子分支。新属包括两种:模式种红树(Mangrovia albida, L. Koch, 1871)。11 . (= Epeira fastidiosa Keyserling, 1887, new syn.) from Queensland and Mangrovia cidentalisp .)11月从西澳大利亚。这两种物种显然都是沿海的，出现在红树林中，但也出现在河岸林地中。人们发现蜘蛛在它们的圆网附近的卷起的叶子中休息。

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A new genus of Australian orb-weaving spider with extreme sexual size dimorphism (Araneae, Araneidae)

The new Australian orb-weaving spider genus Mangrovia in the family Araneidae Clerck, 1757 is described. It is characterised by extreme sexual size-dimorphism (eSSD) with females (total length 8–10 mm) ca. 3 to 5 times larger than males (2.5–3 mm). Whilst Mangrovia shares with the informal Australian ‘backobourkiine’ clade a single seta on the male pedipalp patella, the genus is probably more closely related to the ‘zealaraneines’ or associated genera. In addition to eSSD and the single patellar spine, the genus is characterised by a distinct subterminal embolus branch in males. The new genus includes two species: the type species Mangrovia albida (L. Koch, 1871) comb. nov. (= Epeira fastidiosa Keyserling, 1887, new syn.) from Queensland and Mangrovia occidentalissp. nov. from Western Australia. Both species are apparently coastal and occur in mangroves, but also in riparian woodland. Spiders were found resting in rolled-up leaves adjacent to their orb-web.

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来源期刊

Zoosystematics and Evolution ZOOLOGY-

CiteScore

3.50

自引率

5.00%

发文量

审稿时长

16 weeks

期刊介绍： Zoosystematics and Evolution, formerly Mitteilungen aus dem Museum für Naturkunde in Berlin, is an international, open access, peer-reviewed life science journal devoted to whole-organism biology. It publishes original research and review articles in the field of Metazoan taxonomy, biosystematics, evolution, morphology, development and biogeography at all taxonomic levels. The journal''s scope encompasses primary information from collection-related research, taxonomic descriptions and discoveries, revisions, annotated type catalogues, aspects of the history of science, and contributions on new methods and principles of systematics. Articles whose main topic is ecology, functional anatomy, physiology, or ethology are only acceptable when of systematic or evolutionary relevance and perspective.