Sphecomyrminae

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Sphecomyrminae
Temporal range: Cenomanian–Campanian
Sphecomyrma freyi
 worker
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: †Sphecomyrminae
Wilson & Brown, 1967
Type genus
†Sphecomyrma
Wilson & Brown, 1967
Tribes and genera

See text

Sphecomyrminae is an

Formicidae known from a series of Cretaceous fossils found in North America, Europe, and Asia. Sphecomyrminae contains eight genera, divided into two tribes Sphecomyrmini and Zigrasimeciini. The tribe Sphecomyrmini contains the six genera Armania, Cretomyrma, Gerontoformica, Orapia, Pseudarmania and Sphecomyrma; while Zigrasimeciini contains Boltonimecia and Zigrasimecia. A number of taxa have been removed from the subfamily and placed either in other subfamilies or are now treated as incertae sedis
in Formicidae.

Sphecomyrminae is the most basal of the Formicidae subfamilies, but has not been included in several phylogenetic studies of the family.

synapomorphies
, the short pedicel, a second flagellar segment that is double the length of the other antenna segments, and the loss of the apical end of the CuA veins in the wings of adult males.

Tribes and genera

A 2017 study recognized three tribes, Haidomyrmecini, Sphecomyrmini, and Zigrasimeciini and included the genera formerly placed in Armaniidae within the tribe Sphecomyrmini.[1] Further review of the haidomyrmecins resulted in them being elevated to the separate subfamily Haidomyrmecinae and removed from Sphecomyrminae.

The genus

Sphecomyrmodes was formerly placed into Sphecomyrmini; however, in 2016, it was made a synonym of the stem group genus Gerontoformica, which was considered incertae sedis in Formicidae at the time.[2][3] The former tribe Zigrasimeciini is now considered to comprise the separate subfamily Zigrasimeciinae.[4]

References

  1. ^ Borysenko, L.H. (2017). "Description of a new genus of primitive ants from Canadian amber, with the study of relationships between stem- and crown-group ants (Hymenoptera: Formicidae)". Insecta Mundi. 570: 1–57.
  2. PMID 26877084
    .
  3. doi:10.1111/syen.12253
    .
  4. PMID 33390754
    .

External links
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