§ Anterior tarsi of males much dilated.
1. Willughbiella, Kirby, ♂♀. 5-7 lines.
2. maritima, Kirby, ♂♀. 6-7 lines. ([Plate XII.] fig. 2 ♂♀.)
3. circumcincta, Kirby, ♂♀. 4½-5½ lines.
§§ Anterior tarsi of males not dilated.
1. ligniseca, Kirby, ♂♀. 5-7 lines.
2. centuncularis, Linnæus, ♂♀. 4-6 lines.
centuncularis, Kirby.
3. argentata, Fabricius, ♂♀. 3-4½ lines. ([Plate XII.] fig. 3 ♂♀.)
Leachella, Kirby.