Specialized adaptations for springtail predation in Mesozoic beetles
Open Access
- 7 March 2017
- journal article
- research article
- Published by Springer Science and Business Media LLC in Scientific Reports
- Vol. 7 (1), 1-7
- https://doi.org/10.1038/s41598-017-00187-8
Abstract
Insects exhibit a variety of morphological specializations specific to particular behaviors, and these permit the reconstruction of palaeobiological traits. Despite the critical importance of predator-prey strategies in insect evolution, the appearance of particular aspects of predation are often difficult to determine from the fossil record of hexapods. Here we report the discovery of highly specialized, mid-Cretaceous ant-like stone beetles (Staphylinidae: Scydmaeninae) displaying morphological modifications unknown among living scydmaenids and associated with predation on springtails (Collembola), a widespread and abundant group of significantly greater geological age. Cascomastigus monstrabilis gen. et sp. nov. exhibits an extremely large body size, elongate clubbed maxillary palpi, toothed mandibles, and more importantly, slender and highly modified antennae that functioned as an antennal setal trap. Such an antennal modification is analogous to that of the modern ground beetle genus Loricera (Carabidae: Loricerinae), a group possessing a specialized antennal setal trap exclusively for the capture of springtails. The presence of an identical antennal setal trap in C. monstrabilis demonstrates a unique and dramatic form of obligate predation among the late Mesozoic insects.This publication has 14 references indexed in Scilit:
- Evolution of a giant intromittent organ in Scydmaeninae (Coleoptera: Staphylinidae): Functional morphology of the male postabdomen in MastiginiArthropod Structure & Development, 2015
- Functional morphology and adhesive performance of the stick-capture apparatus of the rove beetles Stenus spp. (Coleoptera, Staphylinidae)Zoology, 2012
- Description of Euroleptochromus gen.n. (Coleoptera, Staphylinidae, Scydmaeninae) from Baltic amber, with discussion of biogeography and mouthpart evolution within ClidiciniSystematic Entomology, 2012
- New ant-like stone beetles in mid-Cretaceous amber from Myanmar (Coleoptera: Staphylinidae: Scydmaeninae)Cretaceous Research, 2010
- Studies on the predatory biology of Oriental dacetine ants (Hymenoptera: Formicidae) II. Novel prey specialization inPyramica bentenJournal of Natural History, 2009
- Collembola (Arthropoda, Hexapoda) from the mid Cretaceous of Myanmar (Burma)Cretaceous Research, 2006
- Cretaceous Collembola (Arthropoda, Hexapoda) from the Upper Cretaceous of CanadaCretaceous Research, 2002
- ‘Shooting’ springtails with a sticky rod: the flexible hunting behaviour of Stenus comma (Coleoptera; Staphylinidae) and the counter-strategies of its preyAnimal Behaviour, 1991
- A new assessment of Rhyniella, the earliest known insect, from the Devonian of Rhynie, ScotlandNature, 1981
- Prey capture and structure of the visual space of an insect that hunts by sight on the litter layer (Notiophilus biguttatus F., Carabidae, Coleoptera)Behavioral Ecology and Sociobiology, 1981