Polyplocia nebulosa, nymphal morphology: A labrum (dorsal view) B hypopharynx (ventral view) C labium (ventral view) D left maxilla (ventral view) E mandibular tusk. Scale bar: 0.5 mm.

 
 
  Part of: Kwanboon S, Boonsoong B, Suttinun C (2023) Taxonomic review of the Oriental genus Polyplocia Lestage, 1921 (Ephemeroptera, Euthyplociidae), with two new records for Thailand. ZooKeys 1179: 197-217. https://doi.org/10.3897/zookeys.1179.107312