Paroster bulbus

{{Short description|Species of beetle}}

{{use dmy dates|date = April 2022}}

{{speciesbox

| taxon = Paroster bulbus

| authority = (Watts & Humphreys, 2004)

| synonyms = Nirripirti bulbus
{{small|Watts & Humphreys, 2004}}

| synonyms_ref =

}}

{{maplink|type1=point|coord1={{coord|-25.87388889|117.45166667}}

|frame=yes|zoom=3|text=Holotype site: Moorarie Station, WA}}

Paroster bulbus is a water beetle in the Hydroporini tribe of the subfamily Hydroporinae in the Dytiscidae family.{{Cite web |title=Australian Faunal Directory: Paroster bulbus |url=https://biodiversity.org.au/afd/taxa/Paroster_bulbus |access-date=2022-04-12 |website=biodiversity.org.au |language=en}} It was first described by Chris Watts and William Humphreys in 2004 as Nirripirti bulbus.{{cite Q|Q111584938|pages=99-129 [112]}} It was transferred to the genus, Paroster, in 2008 by Remko Leijs and Chris Watts.{{cite Q|Q54538330|pages=217-225 [219]}}

It is known only from the type locality in Western Australia.