The Stigmella angusta group (designated here) (species 16)

Diagnostics (Fig. 37): forewing speckled. In male genitalia, phallus with large compact clusters of spine-like cornuti; valva with two apical processes; uncus bilobed; each lobe with two caudal papillae; gnathos with two long caudal processes; vinculum with very long lateral lobes. Currently the group comprises of single high-Andean species— Stigmella angusta from Peru. Trophic relationships unknown.