''Thermonectus zimmermani'' is a species of

diving beetle The Dytiscidae – based on the Greek ''dytikos'' (δυτικός), "able to dive" – are the predaceous diving beetles, a Family (biology), family of water beetles. They occur in virtually any freshwater habitat around the world, but a ...

native to western

Mexican Mexican may refer to: Mexico and its culture *Being related to, from, or connected to the country of Mexico, in North America ** People *** Mexicans, inhabitants of the country Mexico and their descendants *** Mexica, ancient indigenous people ...

states of

Jalisco Jalisco (, , ; Nahuatl: Xalixco), officially the Free and Sovereign State of Jalisco ( es, Estado Libre y Soberano de Jalisco ; Nahuatl: Tlahtohcayotl Xalixco), is one of the 31 states which, along with Mexico City, comprise the 32 Federal En ...

, Colima, and

Morelos Morelos (), officially the Free and Sovereign State of Morelos ( es, Estado Libre y Soberano de Morelos), is one of the 32 states which comprise the Federal Entities of Mexico. It is divided into 36 municipalities and its capital city is Cuer ...

. ''T. zimmermani'' reaches a total length of and has variable bright yellow and black markings similar to that of '' T. marmoratus''. However, ''T. marmoratus'' has a spotted pattern of yellow circles, ''T. zimmermani'' has an irregular, blotched pattern. ''T. zimmermani'' head has a V-shaped medial black marking that has been reduced.

References

{{DEFAULTSORT:Thermonectus zimmermani Dytiscidae Beetles of North America Beetles described in 1981