The Malagasy goblin spiders of the new genus Malagiella (Araneae, Oonopidae). (Bulletin of the American Museum of Natural History, no. 356)

Show simple item record Ubick, Darrell. Griswold, Charles E. 2011-08-18T13:03:12Z 2011-08-18T13:03:12Z 2011-08-10
dc.description 86 p. : ill. (some col.), col. maps ; 26 cm. en_US
dc.description.abstract A new oonopid genus endemic to Madagascar, Malagiella, is proposed and its 10 constituent species newly described and illustrated: M. ambalavo ([male]), M. andringitra ([male, female]), M. fisheri ([m, f]), M. goodmani ([f]), M. nikina ([f]), M. ranavalona ([f]), M. ranomafana ([m, f]), M. toliara ([m, f]), M. valterova ([m, f]), and M. vohiparara ([m, f]). Malagiella is most similar to the Asian genus Camptoscaphiella in both somatic and genitalic features, but differs in some important characters. Unlike Camptoscaphiella, the Malagiella male has a palpal bulb completely fused with the tarsus and a sternum bearing stiff bristles; the female has a round copulatory opening and bifid 4th claws. The species may be recognized by the genitalia. Male palpi are fairly uniform, but differ in segment proportion and details of the embolus complex, which consists of a broad dorsal embolus connected to a laminar ventral prong. Female genitalia are more variable, especially in the curvature of the receptaculum, which spans the range from nearly straight to widely sinuous and occurs in mirror-image versions having opposite coiling. These torsional variants, with females having either left- or right-handed receptacula, probably occur in all species, although they are not evident in species with straight receptacula and (obviously) unknown in species represented by singleton female specimens. Malagiella species are very diverse somatically, ranging from dark, big, and large-eyed species to pale, small, and reduced-eyed ones. Our preliminary clustering uses mostly these somatic features, with some genitalic support, to identify three species groups: ranomafana, vohiparara, and toliara. Other genitalic characters that suggest different groupings are discussed. en_US
dc.language.iso en_US en_US
dc.publisher American Museum of Natural History. en_US
dc.relation.ispartofseries Bulletin of the American Museum of Natural History, no. 356. en_US
dc.subject Malagiella. en_US
dc.subject Oonopidae. en_US
dc.subject Spiders. en_US
dc.subject Madagascar. en_US
dc.title The Malagasy goblin spiders of the new genus Malagiella (Araneae, Oonopidae). (Bulletin of the American Museum of Natural History, no. 356) en_US
dc.title.alternative New genus Malagiella. en_US

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  • Bulletin of the American Museum of Natural History
    The Bulletin, published continuously since 1881, consists of longer monographic volumes in the field of natural sciences relating to zoology, paleontology, and geology. Current numbers are published at irregular intervals. The Bulletin was originally a place to publish short papers, while longer works appeared in the Memoirs. However, in the 1920s, the Memoirs ceased and the Bulletin series began publishing longer papers. A new series, the Novitates , published short papers describing new forms.

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