Phylogeny, evolution and classification of the giant water scavenger beetles (Coleoptera: Hydrophilidae: Hydrophilini: Hydrophilina)

Evolutionary Dynamics of <i>Tropisternus</i> Karyotype (Coleoptera: Hydrophilidae: Hydrophilini) from Southern Brazil

“…Thus, the phylogenetic data compared to body size shows that species with phyletic giantism, as in Hydrophilus (midpoint size 35 mm), are derived in relation to those species that have a reduced size, as it occurs among the species of Tropisternus (midpoint size 10.5 mm), which are plesiomorphic. The same applies to Protistolophus and Sternolophus in Hydrophilini (Short 2010).…”

“…The largest aquatic Polyphaga are allocated to the family Hydrophilidae, tribe Hydrophilini, with 198 described species. This tribe is also composed of small-sized species (less than 1 mm) and middle-sized species, among which is the genus Tropisternus Solier 1834 (Short 2010, Short andFikáček 2011).…”

“…Given that Coleoptera is of great ecological significance coleopters are widely used in several studies, including those that evaluate the ecology, morphophysiology, genetic structure, and phylogeny of the order (Martínez-Navarro et al 2005, Short 2010, Soudi and Moharramipour 2012, Almeida et al 2009). Although several molecular and cytogenetic studies have been conducted, they are still scarce compared to the great diversity of the order; only 1% of the representatives have been analyzed.…”

Systematics of aquatic beetles (Coleoptera): current state and future directions

“…In addition, hygropetric lineages known from few taxa have been found to be substantially underdescribed (e.g. Perkins 2005Perkins , 2006Short, 2010;Short & Garcia, 2010;Clarkson & Short, 2012;Bilton, 2016). These discoveries have only driven additional fieldwork in these habitats which in turn have illuminated yet more previously unrecognized hygropetric communities.…”

Phylogenetic study of the genus Sternolophus Solier (Coleoptera, Hydrophilidae) based on adult morphology

“…This subgeneric division was also rejected by Watts (1989) based on the wide inter- and intraspecific variation of the mentioned character within the Australian species. The phylogenetic relationships of Sternolophus species were also studied by Hansen (1991), Short (2010), Short and Fikáček (2013) and Toussaint et al (2017), although these studies (with the exception of Short 2010) are mainly focused either on family- and tribe-level relationships (Hansen 1991; Short and Fikáček 2013) or had a biogeographic focus (Toussaint et al 2017). Short (2010) included seven species of Sternolophus in his analysis of the subtribe Hydrophilina which resulted in the monophyly of the subgenus Sternolophus s. str.…”