Prionourgus

Taxonomy

Family: Tenthredinidae
Family common name: common sawflies
Subfamily: Selandriinae
Tribe: Dolerini
Genus: Prionourgus Goulet, 1986
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 Selandriinae subfamily are relatively small and slender. The range of Selandriinae is worldwide; it occurs on all continents except Antarctica (Goulet 1992). It is the most common and diverse group of tenthredinids in tropical regions, particularly in Central America, South America, and Southeast Asia (Smith 1969e). Selandriinae contains the only known sawflies that feed on non-vascular plants, specifically ferns (Smith et al. 2013). The subfamily can be distinguished from other subfamilies by wing venation (Goulet 1992).

Prionourgus is monotypic. Prionourgus salmani is a mainly black sawfly with light yellow coloring on the legs. It is known only from southern California (Goulet 1986).

Diversity

There is a single described extant species worldwide, and it is North American (Taeger et al. 2010).

Diagnostic characteristics

Subfamily characters

Genus characters

May be confused with

Prionourgus can be confused with similar species in the subfamily Selandriinae. It can be distinguished from most other genera by the distinct punctures on the head and mesoscutum, and from the other Dolerini genus in the tribe, Dolerus, by the malar space length and the clypeus margin (Goulet 1992).

Exotic pest species of concern

none

Host associations

unknown

Life history

unknown

Distribution

World: The genus is North American (Taeger et al. 2010)

North America: Prionourgus salmani is known from San Bernardino County in southern California (Goulet 1986).

Map data from the Smithsonian National Museum of Natural History Entomology Collection (USNM)

Details about data used for maps can be found here.

Prionourgus salmani female lateral habitus; photo by J. Orr, WSDA

Prionourgus salmani female lateral habitus; photo by J. Orr, WSDA

Prionourgus salmani female dorsal habitus; photo by J. Orr, WSDA

Prionourgus salmani female dorsal habitus; photo by J. Orr, WSDA

Prionourgus salmani female face; photo by Q. Baine, WSDA

Prionourgus salmani female face; photo by Q. Baine, WSDA

Prionourgus salmani male lateral habitus; photo by J. Orr, WSDA

Prionourgus salmani male lateral habitus; photo by J. Orr, WSDA

Prionourgus salmani male dorsal habitus; photo by J. Orr, WSDA

Prionourgus salmani male dorsal habitus; photo by J. Orr, WSDA

Prionourgus salmani male face; photo by Q. Baine, WSDA

Prionourgus salmani male face; photo by Q. Baine, WSDA

Prionourgus salmani fore wing; photo by J. Orr, WSDA

Prionourgus salmani fore wing; photo by J. Orr, WSDA