Common cicadas of Delaware (DE)
All cicadas appear every year, unless otherwise noted.
Magicicada septendecim (Linnaeus, 1758) aka Decim Periodical Cicada or Linnaeus’s 17-Year Cicada or 17-Year Cicada
These emerge next in 2021 (Brood X). Often they emerge 1 or 4 years earlier than expected.

Neocicada hieroglyphica hieroglyphica (Say, 1830) aka Hieroglyphic Cicada

Neotibicen davisi davisi (Smith and Grossbeck, 1907) aka Davis’ Southeastern Dog-Day Cicada

Neotibicen lyricen engelhardti (Davis, 1910) aka Dark Lyric Cicada

Neotibicen tibicen tibicen (Linnaeus, 1758) aka Swamp Cicada, Morning Cicada

Neotibicen winnemanna (Davis, 1912) aka Eastern Scissor(s) Grinder

- Periodical cicada Brood X (10) will emerge in 15 states in 2021
- Look & listen for Brood X Stragglers
Name and Location References:
- Full Binomial Names: ITIS.gov
- Common names & locations: BugGuide.net; iNaturalist.com; The Songs of Insects by Lang Elliott and Wil Herschberger; my personal memory.
- Locations: Biogeography of the Cicadas (Hemiptera: Cicadidae) of North America, North of Mexico by Allen F. Sanborn and Polly K. Phillips.
- List of species with MAPs: Biogeography of the Cicadas (Hemiptera: Cicadidae) of North America, North of Mexico [PDF] by Allen F. Sanborn and Polly K. Phillips. Download it once; treasure it forever.