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Arthropod Struct Dev. 2016 Nov;45(6):642-645. doi: 10.1016/j.asd.2016.10.012. Epub 2016 Nov 9.

Ancient hastisetae of Cretaceous carrion beetles (Coleoptera: Dermestidae) in Myanmar amber.

Author information

1
Department of Integrative Biology, Oregon State University, Corvallis, OR 97331, USA. Electronic address: poinarg@science.oregonstate.edu.
2
4405 NW Queens Avenue, Corvallis, OR 97330, USA.

Abstract

Hastisetae are extremely elaborate and intricate insect setae that occur solely on dermestid larvae (Coleoptera: Dermestidae). The present work characterizes hastisetae found in mid-Cretaceous amber from Myanmar and compares them to hastisetae found on extant dermestid larvae. The presence of hastisetae in Myanmar amber shows that lineages of dermestid beetles had already developed hastisetae by the mid-Cretaceous and their presence allows us to follow the evolutionary development of this particular arthropod structure over the past 100 million years. Hastisetae attached to a parasitic wasp in the same piece of amber indicates that ancient dermestid beetles used their hastisetae for defense, similar to their function today.

KEYWORDS:

Dermestidae; Hastisetae; Myanmar amber

PMID:
27815180
DOI:
10.1016/j.asd.2016.10.012
[Indexed for MEDLINE]

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