Classification
Tree [regio]Heteroptera [subordo]
Lygaeidae [familia]
Geocorinae [subfamilia]
Geocoris [genus]
Piocoris [subgenus]
Subgenus Piocoris Stål, 1872 contains the following taxa:
Geocoris (Piocoris) erythrocephalus (Lepeletier & Serville, 1825) [species]
Geocoris (Piocoris) linnavuorii Péricart, 1994 [species]
Geocoris (Piocoris) luridus (Fieber, 1844) [species]
Geocoris (Piocoris) nebulosus (Montandon, 1907) [species]
Geocoris (Piocoris) putonianus Bergroth, 1892 [species]
Geocoris (Piocoris) quercicola Linnavuori, 1962 [species]