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Long, narrow mines on Lamiaceae

Unid Leafminer Gmf2 - Pseudopostega Unid Leafminer Gmf3 - Pseudopostega Unid Leafminer Gmf6 - Pseudopostega Unid Leafminer Gmf9 - Pseudopostega Unid Leafminer Dmf1 - Pseudopostega Unid Leafminer Dmf1 - Pseudopostega Unid Leafminer Gmf3 - Pseudopostega Durant Nature Preserve leaf miner Pseudopostega on Lycopus D4926 2023 2 - Pseudopostega
Show images of: caterpillars · adults · both
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Nepticuloidea (Pygmy Leafmining Moths)
Family Opostegidae
Subfamily Oposteginae
Genus Pseudopostega
No Taxon Long, narrow mines on Lamiaceae
Remarks
These mines are extremely long and narrow, with frass in a continuous central line. All of the examples here are on Monarda, but I have found a similar one on Lycopus. In that case, the mine crossed over between two opposite leaves, as well as going up and down the stem.