Belongs within: Holometabola.
Contains: Apocrita, Siricoidea.
The Unicalcarida are a major clade of wasps characterised by the reduction of the posterior protibial spur. Within this clade, the Vespina are united by a number of synapomorphies including loss of thoracic legs in the larvae, reduction of the larval antenna to a single segment, and accomodation of the adult mesocoxae into metepisternal depressions (Grimaldi & Engel 2005). Members of the Vespina are ancestrally parasitic as larvae. The other members of the Unicalcarida, in the Cephoidea, Xiphydriidae and Siricoidea, retain phytophagous larvae.
<==Unicalcarida PK17
| i. s.: Daohugoa Rasnitsyn & Zhang 2004 [Daohugoidae] RZ04
| `--*D. tobiasi Rasnitsyn & Zhang 2004 RZ04
|--Vespina [Ephialtitoidea, Euhymenoptera, Evaniales, Evaniomorpha, Parasitica] BD17
| | i. s.: Foenus G20
| | |--F. assectator L02
| | `--F. jaculator G20
| | Karatavitidae R02
| | Ephialtitidae R02
| | |--Stephanogaster magna GE05
| | |--Karataus kourios Sharkey in Darling & Sharkey 1990 RJ93
| | |--Cratephialtites kourios GE05
| | `--Sippelipterus liasinus Zessin 1985 RJ93
| | Mesomutilla aptera Zhang 1985 RJ93
| |--Apocrita PK17
| `--Orussoidea [Idiogastra] PK17
| |--Paroryssidae [Parorysidae] GE05
| `--Orussidae HR11
| |--Mesorussus taimyrensis GE05
| |--Minyorussus luzzii GE05
| |--Guiglia sericata N91
| |--Orussobaius wilsoni N91, R70
| |--Orussonia N91
| `--Orussus Latreille 1802 L02
| |--*O. coronatus Latreille 1802 L02
| |--O. abietinus HR11
| |--O. minutus BD17
| |--O. occidentalis HR11
| `--O. unicolor PK17
`--+--Cephoidea BD17
| |--Sepulcidae GE05
| `--Cephidae HR11
| |--Mesocephus sibiricus Z02
| |--Electrocephus stralendorffi P92
| |--Hartigia Schioedte 1838 HR11, L59
| | `--H. trimaculata HR11
| |--Janus Stephens 1835 RD77, BR05
| | `--J. integer [incl. J. flaviventris] RD77
| `--Cephus Latreille 1802 L02
| |--*C. pygmaeus [=Sirex pygmaeus] L02
| |--C. cinctus [incl. C. occidentalis] RD77
| |--C. flavicornis Lucas 1849 E12
| `--C. spinipes PK17
`--+--Siricoidea BD17
`--Xiphydriidae [Xiphydrioidea] BD17
|--Derycyrtinae N91
| |--Austrocyrta australiensis N91
| `--Derecyrta circularis HR11
`--Xiphydriinae N91
|--Rhysacephala N91
`--Xiphydria Latreille 1802 L02
|--*X. camelus L02 [=Cephus (Xiphydra) camelus G20, Sirex camelus L02]
|--X. abdominalis [incl. X. attenuata] S96
|--X. champlaini S96
|--X. maculata S96
|--X. mellipes S96
|--X. prolongata HR11
|--X. scafa S96
`--X. tibialis S96
*Type species of generic name indicated
REFERENCES
[BR05] Bouchet, P., & J.-P. Rocroi. 2005. Classification and nomenclator of gastropod families. Malacologia 47 (1–2): 1–397.
[BD17] Branstetter, M. G., B. N. Danforth, J. P. Pitts, B. C. Faircloth, P. S. Ward, M. L. Buffington, M. W. Gates, R. R. Kula & S. G. Brady. 2017. Phylogenomic insights into the evolution of stinging wasps and the origins of ants and bees. Current Biology 27: 1019–1025.
[E12] Evenhuis, N. L. 2012. Publication and dating of the Exploration Scientifique de l'Algérie: Histoire Naturelle des Animaux Articulés (1846–1849) by Pierre Hippolyte Lucas. Zootaxa 3448: 1–61.
[G20] Goldfuss, G. A. 1820. Handbuch der Naturgeschichte vol. 3. Handbuch der Zoologie pt 1. Johann Leonhard Schrag: Nürnberg.
[GE05] Grimaldi, D., & M. S. Engel. 2005. Evolution of the Insects. Cambridge University Press: New York.
[HR11] Heraty, J., F. Ronquist, J. M. Carpenter, D. Hawks, S. Schulmeister, A. P. Dowling, D. Murray, J. Munro, W. C. Wheeler, N. Schiff & M. Sharkey. 2011. Evolution of the hymenopteran megaradiation. Molecular Phylogenetics and Evolution 60: 73–88.
[L02] Latreille, P. A. 1802. Histoire Naturelle, générale et particulière des crustacés et des insectes vol. 3. Familles naturelles des genres. F. Dufart: Paris.
[L59] Lopes, H. de S. 1959. A revision of Australian Sarcophagidae (Diptera). Studia Ent. 2 (1–4): 33–67.
[N91] Naumann, I. D. 1991. Hymenoptera (wasps, bees, ants, sawflies). In: CSIRO. The Insects of Australia: A textbook for students and research workers 2nd ed. vol. 2 pp. 916–1000. Melbourne University Press: Carlton (Victoria).
[PK17] Peters, R. S., L. Krogmann, C. Mayer, A. Donath, S. Gunkel, K. Meusemann, A. Kozlov, L. Podsiadlowski, M. Petersen, R. Lanfear, P. A. Diez, J. Heraty, K. M. Kjer, S. Klopfstein, R. Meier, C. Polidori, T. Schmitt, S. Liu, X. Zhou, T. Wappler, J. Rust, B. Misof & O. Niehuis. 2017. Evolutionary history of the Hymenoptera. Current Biology 27 (7): 1013–1018.
[P92] Poinar, G. O., Jr. 1992. Life in Amber. Stanford University Press: Stanford.
[R02] Rasnitsyn, A. P. 2002. Superorder Vespidea Laicharting, 1781. Order Hymenoptera Linné, 1758 (=Vespida Laicharting, 1781). In: Rasnitsyn, A. P., & D. L. J. Quicke (eds) History of Insects pp. 242–254. Kluwer Academic Publishers: Dordrecht.
[RZ04] Rasnitsyn, A. P., & H. Zhang. 2004. A new family, Daohugoidae fam. n., of siricomorph hymenopteran (Hymenoptera=Vespida) from the Middle Jurassic of Daohugou in Inner Mongolia (China). Proceedings of the Russian Entomological Society, St. Petersburg 75 (1): 12–16.
[RD77] Richards, O. W., & R. G. Davies. 1977. Imms' General Textbook of Entomology 10th ed. vol. 2. Classification and Biology. Chapman and Hall: London.
[R70] Riek, E. F. 1970. Hymenoptera (wasps, bees, ants). In: CSIRO. The Insects of Australia: A textbook for students and research workers pp. 867–959. Melbourne University Press.
[RJ93] Ross, A. J., & E. A. Jarzembowski. 1993. Arthropoda (Hexapoda; Insecta). In: Benton, M. J. (ed.) The Fossil Record 2 pp. 363–426. Chapman & Hall: London.
[S96] Smith, D. R. 1996. Aulacidae (Hymenoptera) in the mid-Atlantic states, with a key to species of eastern North America. Proceedings of the Entomological Society of Washington 98 (2): 274–291.
[Z02] Zherikhin, V. V. 2002. Ecological history of the terrestrial insects. In: Rasnitsyn, A. P., & D. L. J. Quicke (eds) History of Insects pp. 331–388. Kluwer Academic Publishers: Dordrecht.
Last updated: 20 March 2021.