Related how?

Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Ecdysozoa (Ecdysozoan)
Panarthropoda
Tactopoda
Arthropoda (Arthropod)
Mandibulata
Tracheata
Uniramia
Pancrustacea
Hexapoda (Hexapods)
Insect (Insects)
Dicondylia
Pterygota (Pterygote)
Metapterygota
Neoptera
Eumetabola
Endopterygota
Coleoptera (Beetles)
Polyphaga (Polyphagans)
Staphyliniformia
Hydrophiloidea
Hydrophilidae
Sphaeridiinae

Rygmodini (21215518)

Children (9 direct children, 20 direct and indirect children):

Rygmodus (tree size 3)

Rygmostralia

Saphydrus (tree size 3)

Cylorygmus (tree size 1)

Petasopsis

Borborophorus

Eurygmus (tree size 1)

Pseudohydrobius (tree size 2)

Pseudorygmodus (tree size 1)