Vidria

{{short description|Genus of trilobites}}

{{Taxobox

| fossil_range = {{Fossil range|Guadalupian}}

| image = Vidria vespa.jpg

| image_caption = reconstruction of adult and juvenile

| regnum = Animalia

| phylum = Arthropoda

| classis = Trilobita

| ordo = Proetida

| familia = Phillipsiidae

| genus =Vidria

| genus_authority = Weller, 1944

| binomial = Vidria vespa

| binomial_authority = Weller, 1944Weller, J. Marvin. "Permian trilobite genera." Journal of Paleontology (1944): 320-327.

}}

Vidria vespa is a proetid trilobite belonging to the family Phillipsiidae. The fossils are found in Middle Permian-aged marine strata of Western Texas. It is unique among Permian-aged trilobites in having a posterior spine emanating from the pygidium of the adult (two such posterior spines are present in immature individuals).