Document Type

Article

Journal/Book Title/Conference

Journal of Natural History

Volume

19

Publisher

Taylor & Francis

Publication Date

1-4-1985

First Page

1197

Last Page

1207

Abstract

Investigation of the cephalic foveae on the vertex of many female eumenine wasps, indicates that these depressions represent external openings of paired dermal glands. The function of this secretory system remains unknown, but it probably plays a role in mating. Presence of foveae in addition to modifications of the hypothesized primitive state, including coalescence of the foveae into a single opening, increased development of foveal setae, greater foveal separation and partial or complete foveal regression, are often useful indicators of phylogenetic relationship among various eumenine taxa.

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