Spencerhydrus

{{short description|Genus of beetles}}

{{italic title}}

{{Taxobox

| name = Spencerhydrus

| regnum = Animalia

| phylum = Arthropoda

| classis = Insecta

| ordo = Coleoptera

| subordo = Adephaga

| familia = Dytiscidae

| genus = Spencerhydrus

| genus_authority = Sharp, 1882

}}

Spencerhydrus is a genus of beetles in the family Dytiscidae. The genus is found only in southern Australia and contains the following two species:{{cite book| author1=Miller, K.B. |author2=J. Bergsten | title=Diving Beetles of the World: Systematics and Biology of the Dytiscidae | year=2016 | pages=131–132 |publisher=JHU Press | isbn=978-1-4214-2054-7 }}{{cite web |first1=Anders N. |last1=Nilsson |first2=Jiří |last2=Hájek |title=A World Catalogue of the Family Dytiscidae or the Diving Beetles (Coleoptera, Adephaga) |year=2021 |edition=1.I.2021 |url=http://waterbeetles.eu/documents/W_CAT_Dytiscidae_2021.pdf}}

• Spencerhydrus latecinctus Sharp, 1882
• Spencerhydrus pulchellus Sharp, 1882