General comments:

Mompha divisella and Mompha bradleyi are of similar appearance and naming of adults usually calls for genitalia examination. Larvae of divisella mine the stems of Epilobium montanum, palustris, lanceolatum, parviflorum and adenocaulon and there are few other obvious signs than a pea-sized swelling of the stem at a node. M. bradleyi is so far known only on Epilobium hirsutum.

	Determination by Genitalia Examination Required

Recorded in 8 (20%) of 41 10k Squares. First Recorded in 1963. Last Recorded in 2023. Additional Stats

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