Thermonectus

Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Ordo: Coleoptera
Subordo: Adephaga

Familia: Dytiscidae
Subfamilia: Dytiscinae
Tribus: Aciliini
Genus: Thermonectus
Species: T. basillaris – T. intermedius – T. marmoratus – T. ornaticollis
Name

Thermonectus Dejean, 1833: 53 (as "Thermonetus. Eschscholtz.")

Type species: Dytiscus circumscriptus Latreille, 1809, by monotypy.
Synonymy

Thermonetus Dejean, 1833: 53 [original spelling]

References
Primary references

Dejean, P.F.M.A. 1833. Catalogue des Coléoptères de la collection de M. le Comte Dejean. Deuxième édition. [Livraison 1 (pp. 1–96), Livraison 2 (pp. 97–176)]. Paris: Méquignon-Marvis Père et Fils. [pp. 177–256, Livraison 3 was published in 1834; pp. 257–360, Livraison 4 in 1835; pp. 361–442, Livraison 5 in 1836]. BHL. Reference page.

Additional references

Goodhue-McWilliams, K.L. 1981: Two new species of Thermonectus (Coleoptera: Dytiscidae) from southwestern United States and western Mexico. Coleopterists bulletin, 35(4): 399–407. JSTOR
Michat, M.C. 2013: Description of the larvae of Thermonectus alfredi GRIFFINI, 1898 (Coleoptera: Dytiscidae). Koleopterologische rundschau 83: 7–15. [Not seen] Reference page.

Thermonectus is a genus of beetle in family Dytiscidae. This genus is native to the New World, and mainly from warm temperate to tropical in distribution, but one species, T. basillaris occurs as far north as southern Ontario, Canada.[1] They inhabit a wide range of freshwater habitats with static water and are often common.[2] They are generally about 0.8–1.5 cm (0.3–0.6 in) long and a few species from desert pools in North America have a distinct yellow-spotted pattern on a black background.[2]

Species
Thermonectus basillaris

Thermonectus contains the following 20 species:[3]

Thermonectus alfredi Griffini, 1898
Thermonectus basillaris (Harris, 1829)
Thermonectus batesi Sharp, 1882
Thermonectus circumscriptus (Latreille, 1809)
Thermonectus cuneatus Sharp, 1882
Thermonectus depictus Sharp, 1882
Thermonectus duponti (Aubé, 1838)
Thermonectus intermedius Crotch, 1873
Thermonectus laporti (Aubé, 1838)
Thermonectus leprieuri J. Balfour-Browne, 1944
Thermonectus margineguttatus (Aubé, 1838)
Thermonectus marmoratus (Gray, 1831)
Thermonectus nigrofasciatus (Aubé, 1838)
Thermonectus nobilis Zimmermann, 1924
Thermonectus sibleyi Goodhue-McWilliams, 1981
Thermonectus simulator Sharp, 1882
Thermonectus succinctus (Aubé, 1838)
Thermonectus tremouillesi Michat & Torres, 2016
Thermonectus variegatus (Laporte, 1835)
Thermonectus zimmermani Goodhue-McWilliams, 1981

References

Larson, D. J.; Alarie, Y.; Roughley, R. E. (2000). Predaceous diving beetles (Coleoptera: Dytiscidae) of the Nearctic Region, with emphasis on the fauna of Canada and Alaska. Natural Research Council of Canada. ISBN 0-660-17967-9.
Miller, K.B.; J. Bergsten (2016). Diving Beetles of the World: Systematics and Biology of the Dytiscidae. pp. 131–132. ISBN 978-1-4214-2054-7.
Nilsson, Anders N.; Hájek, Jiří (2021). "A World Catalogue of the Family Dytiscidae or the Diving Beetles (Coleoptera, Adephaga)" (PDF) (1.I.2021 ed.).