The largest fossil of the segmented spider Parvithele muelleri Wunderlich, 2017 (Mesothelae: Parvithelidae) from Cretaceous Burmese amber

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  The largest fossil of the segmented spider Parvithele muelleri Wunderlich, 2017 (Mesothelae: Parvithelidae) from Cretaceous Burmese amber Abstract A new specimen of the fossil spider Parvithele muelleri Wunderlich, 2017 (Araneae: Mesothelae) is described from the mid-Cretaceous (ca. 99 Ma) Burmese amber of Myanmar. Like the original holotype, the new specimen is a mature male, which clearly preserves a series of tibial macrospines, similar to the condition in the extant genus Liphistius Schiødte, 1849. Given that the single extant mesothele family, Liphistiidae, is predicted to have radiated ca. 39–58 million years ago, the occurrence of somewhat modern-looking male pedipalp spination in older fossil mesotheles is of considerable interest. The new specimen also shows spinnerets in a relatively posterior position, although variability observed in extant species suggests that this trait may be of limited systematic value. Of particular note is the presence of a large and well-dev...

Attack on Titan: a record of predation on the Chinese reddish mantis Hierodula chinensis (Mantodea, Mantidae) by the orb-web weaving spider Gibbaranea abscissa (Araneae, Araneidae)

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Attack on Titan: a record of predation on the Chinese reddish mantis Hierodula chinensis (Mantodea, Mantidae) by the orb-web weaving spider Gibbaranea abscissa (Araneae, Araneidae)

Abstract

Prey–predator interaction is a phenomenon important to our understanding of community dynamics. Mantises and web-weaving spiders are predators that belong to the same guild, and they can be each other’s predator and prey. However, their relationship is generally asymmetrical, with spiders often being the prey of the mantises. Here, we report a rare opposite case in which an adult female mantis, Hierodula chinensis Werner, 1929, was preyed upon by the orb-web weaving spider Gibbaranea abscissa (Karsch, 1879), without using a web, in a late autumn field in Japan. We suggest that differences in cold tolerance allowed the small spider to hunt a mantis prey that was approximately eight times its size.

Yamasaki K, Baba YG (2025) Attack on Titan: a record of predation on the Chinese reddish mantis Hierodula chinensis (Mantodea, Mantidae) by the orb-web weaving spider Gibbaranea abscissa (Araneae, Araneidae). Journal of Orthoptera Research 34(1): 131-134. https://doi.org/10.3897/jor.34.122095