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Beridines are often colorful metallic flies. Adults feed at flowers. Males of numerous species form mating swarms. The few known larvae live in moss, leaf litter, and upper layers of soil (Rozkošný 1998).
Adult members of the Beridinae are distinguished by the impressed tergal grooves on abdominal segments two to six, and larvae by the major setae with tufts of auxiliary setae. There are seven visible abdominal segments in Beridinae. This is a putatively plesiomorphic state as it is shared only with Parhadrestiinae and Chiromyzinae in the Stratiomyidae (Woodley 1995).
Relationship of Beridinae to Other Stratiomyidae
Beridinae is the putative sister group of other Stratiomyidae excluding Parhadrestiinae and Chiromyzinae. Abdominal segments five to eight are reduced in size in all soldier flies more derived than Beridinae (Woodley 2001).
Discussion of Phylogenetic Relationships
Woodley (1995) hypothesized the relationships of the 33 genera of Beridinae based on 22 adult morphological characters, using a parsimony analysis with successive weighting. As a result of this analysis, Woodley (1995) informally divided Beridinae into the Beris group of genera and the Actina group.
Rozkošný, R. 1998. Chapter 24. Family Stratiomyidae. Manual Palaearct. Dipt. 2: 387-411.
Woodley, N. E. 1995. The genera of Beridinae (Diptera: Stratiomyidae). Memoirs of Entomol. Soc. Wash. 16 1-231.
Woodley, N. E. 2001. A World Catalog of the Stratiomyidae (Insecta: Diptera). Myia 11: 1-473. Backhuys Publishers, Leiden.
Information on the Internet
- Soldier fly. Image of a beridine fly on Flickr.
About This Page
North Carolina State University, Raleigh, North Carolina, USA
Correspondence regarding this page should be directed to Keith Bayless at
Page copyright © 2008 Keith Bayless
All Rights Reserved.
- First online 28 September 2008
- Content changed 28 September 2008
Citing this page:
Bayless, Keith. 2008. Beridinae. Version 28 September 2008 (under construction). http://tolweb.org/Beridinae/23956/2008.09.28 in The Tree of Life Web Project, http://tolweb.org/