Dineutus serrulatus variation in males. D. s. serrulatus A dorsal habitus B ventral habitus C aedeagus dorsal view; D. s. analis Liberty Co. Florida D dorsal habitus E ventral habitus F aedeagus dorsal view; D. s. analis Tennessee G dorsal habitus H ventral habitus I aedeagus dorsal view; D. s. analis Kansas J dorsal habitus K ventral habitus L aedeagus. Scale bars for C, F, I, L ≈ 1 mm all others ≈ 2 mm.

 
 
  Part of: Gustafson GT, Miller KB (2015) Тhe New World whirligig beetles of the genus Dineutus Macleay, 1825 (Coleoptera, Gyrinidae, Gyrininae, Dineutini). ZooKeys 476: 1-135. https://doi.org/10.3897/zookeys.476.8630