Higher-level phylogeny of Hydrophilinae (Coleoptera: Hydrophilidae) based on larval, pupal, and adult characters.

ARCHANGELSKY, M.

SYSTEMATIC ENTOMOLOGY (PRINT)

Blackwell

Lugar: Reino Unido, Oxford; Año: 2004 vol. 29 p. 188 - 214

0307-6970

A phylogenetic analysis, at a tribal and subtribal level, of the subfamilyHydrophilinae was conducted. The analysis was based on twenty-nine taxa(twenty-three genera) and 148 characters (fifty-eight from immature stages andbionomics, and ninety from adults). According to the present study, Hydrophilinaeis monophyletic, and except for the tribe Hydrophilini which appears aspolyphyletic (it includes the subtribes Hydrophilina, Hydrobiina, and Acidocerina),the remaining tribes are monophyletic. The tribes Berosini and Chaetarthriiniform the basal clade of Hydrophilinae. One unexpected result is therelationship between the subtribe Hydrobiina and the tribe Sperchopsini, whichform a well-supported clade. The final tree has the following structure:(((((Sperchopsini Hydrobiina) (Anacaenini Laccobiini)) Acidocerina) Hydrophilina)(Berosini Chaetarthriini)). The results partially disagree with the phylogenypresented by Hansen, in 1991, which was based mostly on adult characters.Several evolutionary trends are briefly discussed: the types of egg case, the morphologyof the clypeolabrum, mouthparts, legs, and breathing adaptations inlarvae.