Allantunicus

Taxonomy

Family: Tenthredinidae
Family common name: common sawflies
Subfamily: Allantinae
Tribe: Empriini
Genus: Allantunicus D.R. Smith, 1997
Subgenera: none

Background

The Tenthredinidae are the most species-rich family and are found throughout the world, in all continents but Antarctica. They are known as the “common sawflies.” They can generally be recognized by a cylindrical body and long, segmented antennae. Otherwise, they come in a variety of colors, sizes, and forms (Goulet 1992).

Sawflies in the Allantinae subfamily are mostly black and shining, sometimes with other colors. They have agricultural importance as some species are pests on cultivated and ornamental plants (Smith 1979a). They can be distinguished from other subfamilies by wing venation (Smith 2003a).

Allantunicus are medium-sized, about 8–9 mm in length. There is a single North American species, A. autumnalis, which is recognized by its orange body, black head, and darkened wings (Smith and Schiefer 1997).

Diversity

There is one described extant species worldwide, and it is Nearctic (Taeger et al. 2010).

Diagnostic characteristics

Subfamily characters

Genus characters

May be confused with

Allantunicus can be confused with similar species in the subfamily Allantinae or tribe Allantini. It can be distinguished from most other genera by the short genal ridge, shallow clypeal emargination, lack of cell M in the hind wing, lack of punctures on the mesepisternum, and the tarsal claw (Smith and Schiefer 1997).

Exotic pest species of concern

none

Host associations

In North America, Allantunicus feeds on Polygonella gracilis (tall jointweed) (Smith and Schiefer 1997).

Life history

unknown

Distribution

World: This genus is known from North America (Taeger et al. 2010).

North America: Allantunicus occurs in coastal Alabama (Smith and Schiefer 1997).

Map data from: GBIF.org (29 October 2019) GBIF Occurrence Download Allantunicus and the Smithsonian National Museum of Natural History (USNM)

Details about data used for maps can be found here.

Allantunicus autumnalis female lateral habitus; photo by J. Orr, WSDA

Allantunicus autumnalis female lateral habitus; photo by J. Orr, WSDA

Allantunicus autumnalis female dorsal habitus; photo by Q. Baine, WSDA

Allantunicus autumnalis female dorsal habitus; photo by Q. Baine, WSDA

Allantunicus autumnalis female face; photo by Q. Baine, WSDA

Allantunicus autumnalis female face; photo by Q. Baine, WSDA

Allantunicus autumnalis male lateral habitus; photo by J. Orr, WSDA

Allantunicus autumnalis male lateral habitus; photo by J. Orr, WSDA

Allantunicus autumnalis male dorsal habitus; photo by J. Orr, WSDA

Allantunicus autumnalis male dorsal habitus; photo by J. Orr, WSDA

Allantunicus autumnalis male face; photo by Q. Baine, WSDA

Allantunicus autumnalis male face; photo by Q. Baine, WSDA

Allantunicus autumnalis fore wing; photo by J. Orr, WSDA

Allantunicus autumnalis fore wing; photo by J. Orr, WSDA