Passalus interstitialis

{{Short description|Species of beetle}}

{{Speciesbox

| image = Passalus interstitialis sjh.jpg

| image_caption = Passalus interstitialis, adult

| genus = Passalus

| species = interstitialis

| authority = Eschsholtz

}}

Passalus interstitialis is a beetle of the family Passalidae, distributed from Mexico to Argentina and in the West Indies.{{Cite journal |last1=Jiménez-Ferbans |first1=Larry |last2=Maestre-Guerra |first2=Ana |last3=Villalba-Fuentes |first3=Evelin |last4=Barros-Barrios |first4=Mayelis M. |last5=Muñoz-Montero |first5=Jeison |date=2023-12-09 |title=Passalidae (Coleoptera, Scarabaeoidea) from the Caribbean coast of Colombia: synopsis, key, and new species description |journal=ZooKeys |language=en |issue=1179 |pages=243–297 |doi=10.3897/zookeys.1179.104037 |issn=1313-2970 |pmc=10509754 |pmid=37736161 |doi-access=free |bibcode=2023ZooK.1179..243J }}

It was classified by Johann Friedrich von Eschscholtz in the early 19th century.