Family common name: common sawflies
Genus: Ceratulus MacGillivray, 1908
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 subfamily Blennocampinae have a diverse set of life histories and habits. Many species are restricted to subtropical and tropical regions, but the genus is still fairly species-rich in North America. Blennocampinae includes many sawflies that feed on ornamental and forestry crops. This subfamily can be recognized by wing venation and bidentate mandibles (Smith 1969d).
Ceratulus is monotypic. Ceratulus spectabilis is relatively large for its subfamily, about 7–9 mm in length, and entirely orange with black striping on the legs, darkened wings, and distinctly serrate antennae (MacGillivray 1908, Smith 1969d).
Ceratulus spectabilis feeds on Cissus trifoliata (sorrelvine) (Smith 1969d).
World: This genus is found only in North America (Taeger et al. 2010).
North America: Ceratulus spectabilis is known only from Texas (Smith 1969d).
Map data from: GBIF.org (29 October 2019) GBIF Occurrence Download Ceratulus
Details about data used for maps can be found here.