Novo gênero Neotropical de Spintharinae (Araneae, Theridiidae)

‘Rectangular orb’ webs of Synotaxus (Araneae: Theridiidae)

Dragline Attachment Pattern in the Neotropical Social Spider <Emphasis Type="Italic">Anelosimus eximius</Emphasis> (Araneae: Theridiidae)

The regularity of spiders orb webs has been considered a fascinating natural wonder by generations of naturalists. Although the majority of spider species build irregular three-dimensional networks, those who have evolved the twodimensional spiral snare have drawn most of the attention (Vollrath, 1988). Even studies conducted on irregular webs are often explicitly devoted to the search of simil...

On the spider genus Thymoites in the Neotropical Region (Araneae, Theridiidae): nine new species, complementary descriptions and new records.

The theridiid genus Thymoites Keyserling, 1884 is distributed worldwide. Spiders of this genus are mainly known from the Neotropical Region, but are poorly studied in Brazil. In this paper nine new species of Thymoites are described from Brazil, one from the state of Alagoas: Thymoites murici n. sp.; two from São Paulo: T. bocaina n. sp., T. ilhabela n. sp. and T. taiobeiras n. sp. from states ...

Six new species, complementary descriptions and new records from the Neotropical Region of the spider genus Dipoena (Araneae: Theridiidae).

The theridiid genus Dipoena Thorell, 1869 is distributed worldwide. Dipoena are recognized by male with carapace often high, cylindrical, with grooves or depression on dorsum; carapace of female rarely modified, sometimes high. In this paper six new species of Dipoena are described from Brazil, one from the state of Mato Grosso do Sul: Dipoena bonitensis new species, three from São Paulo: Dipoe...

Morphology and Evolution of Cobweb Spider Male Genitalia (araneae, Theridiidae)

This study elucidates the homology of elements of the male palps in the spider family Theridiidae. We survey and illustrate 60 species from 29 out of the 86 currently recognized genera representing all subfamilies. The study is buttressed by a phylogenetic framework, and uses a new method to evaluate critically competing homology hypotheses based on various criteria. Among the classic criteria ...