Several families in the beetle suborder Adephaga have an aquatic life style and are commonly grouped in the “Hydradephaga,” but their monophyly is contentious and relationships between and within these families are poorly understood. Here we present fulllength 18S rRNA sequence for 84 species of Hydradephaga, including representatives of most major groups down to the tribal level, and a total o...

Aquatic beetle diversity was compared between three study sites in the state of Tlaxcala, central Mexico: Stream 1 (San Ambrosio), stream 2 Tadeo), and a lake (Acuitlapilco). Sampling took place bimonthly during an annual cycle. A total 2968 specimens were obtained, which grouped into twenty species, fifteen genera, six families (Elmidae, Dryopidae, Dytiscidae, Gyrinidae, Haliplidae, Hydrophili...


 A água é imprescindível à biodiversidade sendo um recurso natural de grande relevância em regiões semiáridas como o Nordeste do Brasil. Com isso, suma importância conhecimento da fauna insetos aquáticos desses ambientes, pois eles podem ser importantes bioindicadores qualidade e ambiente ao seu entorno. Baseado nisso, objetivo desse trabalho foi realizar uma análise faunística a partir d...