Michael S. Engel, David A. Grimaldi Diversity and phylogeny of the Mesozoic wasp family
Stigmaphronidae (Hymenoptera: Ceraphronoidea)
Abstract: The extinct, parasitoid wasp family Stigmaphronidae (Proctotrupomorpha: Ceraphronoidea) is reviewed and a cladistic
analysis of relationships undertaken. Stigmaphronids are presently known principally in Cretaceous amber from Siberia, Alaska,
Canada, New Jersey, Myanmar, and Lebanon, but also from a few compressions from the Early Cretaceous of Siberia and Mongolia.
As a result of the study the following new taxa are proposed, more than doubling the size of the family: Elasmophron kurthi
nov.gen. et sp. (New Jersey amber), Libanophron astarte nov.gen. et sp. (Lebanese amber), Burmaphron tridentatum nov.gen. et sp.
(Burmese amber), B. prolatum nov.sp. (Burmese amber), Tagsmiphron muesebecki nov.gen. et sp. (New Jersey amber), T. gigas
nov.sp. (New Jersey amber), T. ascalaphus nov.sp. (New Jersey amber), and T. canadense nov.sp. (Canadian amber). The genus
Elasmomorpha KOZLOV is proposed as a junior synonym of Allocotidus MUESEBECK (nov.syn.) resulting in Allocotidus melpomene
(KOZLOV) nov.comb. Relationships are well supported, so the lack of any stratigraphic-clade rank correlation strongly suggests
poor stratigraphic sampling of what was probably a very diverse lineage.
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