Heterogyna

Life-forms

Superregnum: Eukaryota
Cladus: Orthokaryota
Cladus: Neokaryota
Cladus: Scotokaryota
Cladus: Podiata
Cladus: Amorphea
Cladus: Obazoa
Cladus: Opisthokonta
Cladus: Holozoa
Cladus: Filozoa
Cladus: Choanozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: ParaHoxozoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Cladus: Mandibulata
Cladus: Pancrustacea
Cladus: Allotriocarida
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Holometabola
Superordo: Hymenopterida
Ordo: Hymenoptera
Subordo: Apocrita
Superfamilia: Apoidea

Familia: Heterogynaidae
Subfamilia: Heterogynainae
Genus: Heterogyna
Species (9): H. botswana – H. fantsilotra – H. kugleri – H. madecassa – H. nocticola – H. polita – H. protea – H. ravenala – H. saudita
Name

Heterogyna Nagy, 1969: 300
Type species: Heterogyna protea Nagy, 1969, by original designation & monotypy.

References

Nagy, C.G. 1969. A new taxon of the family Heterogynidae Latreille (Hym., Aculeata). Entomologische Mitteilungen aus dem Zooogischen Staatsinstitut und Zoologischen Museum Hamburg 64: 299–303 (7-11). PDF Reference page.
California Academy of Sciences Institute of Biodiversity: Heterogyna Accessed 4 December 2023

Heterogynaidae is a minor and disputed lineage (only eight described species in a single genus, Heterogyna) of small spheciform wasps occurring in Madagascar, Botswana, Turkmenistan, Oman, the United Arab Emirates, and the Eastern Mediterranean area. The majority are dark in color and range in size from approximately 1.5 to 5.0 mm. Most specimens have been collected in arid climates, but one species from Madagascar is known to occur in a humid forest habitat. Although males have functional wings, heterogynaid females are typically brachypterous, a trait which is unique among spheciform wasps. Wing venation is reduced in both sexes. All species are diurnal, with the exception of H. nocticola. Other aspects of their biology are completely unknown, but details of their morphology have prompted researchers to hypothesize that they may be non-fossorial parasitoids adapted to hunt in tight spaces, such as under tree bark. This is speculative and has not yet been confirmed by actual observations of behavior. It is also possible that modifications of the female metasomal tergum VI and gonostyli may represent a unique prey transport mechanism, but this is also unconfirmed.

The Heterogynaidae were historically considered the sister taxon to the remainder of the Apoidea, but recent studies utilizing molecular characters do not support this hypothesis. While monophyly of the genus is strongly supported, it is now considered to be related to the Crabronidae[1] or, most recently, a lineage within the Bembicidae.[2]
References

Branstetter, Michael G.; Danforth, Bryan N.; Pitts, James P.; Faircloth, Brant C.; Ward, Philip S.; Buffington, Matthew L.; Gates, Michael W.; Kula, Robert R.; Brady, Seán G. (2017). "Phylogenomic Insights into the Evolution of Stinging Wasps and the Origins of Ants and Bees". Current Biology. 27 (7): 1019–1025. Bibcode:2017CBio...27.1019B. doi:10.1016/j.cub.2017.03.027. PMID 28376325.

Manuela Sann, Oliver Niehuis, Ralph S. Peters, Christoph Mayer, Alexey Kozlov, Lars Podsiadlowski, Sarah Bank, Karen Meusemann, Bernhard Misof, Christoph Bleidorn and Michael Ohl (2018) Phylogenomic analysis of Apoidea sheds new light on the sister group of bees. BMC Evolutionary Biology 18:71. doi:10.1186/s12862-018-1155-8

Day, M.C. (1984). "The enigmatic genus Heterogyna Nagy (Hymenoptera: Sphecidae; Heterogyninae)". Systematic Entomology. 9 (3): 293–307. Bibcode:1984SysEn...9..293D. doi:10.1111/j.1365-3113.1984.tb00054.x. S2CID 84501607.
Goulet, H., Huber, J.T. (1993) Hymenoptera of the World. Agriculture Canada Research Branch, publication 1894/E. 668pp.
Ohl, M. & Bleidorn, C. (2006) "The phylogenetic position of the enigmatic wasp family Heterogynaidae based on molecular data, with a new description of a new, nocturnal species (Hymenoptera: Apoidea)". Systematic Entomology, 31, 321–337.