Elachista hedemanni

Kaila, Lauri, 2012, On species related to Elachista hedemanni Rebel (Lepidoptera: Elachistidae: Elachistinae), with descriptions of three new Palearctic species, Zootaxa 3316, pp. 28-39 : 29

Key to males of the species of the Elachista hedemanni complex

1. Forewing densely peppered with black scales, cornutus nearly twice as long as diameter of phallus.................... 2

- Forewing with only a few black scales; cornutus a distinctly longer than diameter of phallus.......................... 3

2. Digitate process with posterior margin straight; phallus about 12 times as long as wide.................... E. hedemanni

- Digitate process with posterior margin concave; phallus about 15 times as long as wide.................... E. cirrhoplica

3. Forewing narrow; uncus lobes distally tapered; phallus broadest in the middle, about 7 times as long as wide at its widest point............................................................................................. E. galbina

- Forewing not significantly narrow; uncus lobes distally broadly rounded, phallus about 15 times as long as wide.. E. gilvula