Otiocerina, Muir, 1917

Bahder, Brian W., Myrie, Wayne, Helmick, Ericka E. & Bartlett, Charles R., 2025, A new genus and species of otiocerine planthopper (Hemiptera: Auchenorrhyncha: Derbidae) from coconut palms (Cocos nucifera) in Jamaica, revised status of Shellenius schellenbergii and an updated molecular phylogeny of New World Otiocerinae, Zootaxa 5723 (2), pp. 209-226 : 216

Key to genera of American Otiocerina (updated from Bartlett & Hoch 2023)

1. Antennae bearing elongated appendage(s)........................................................ ( Otiocerina ) 2

- First antennal segment devoid of appendages........................................................ (Anotiina)

2. Costal margin of forewing scalloped, bearing 2 or more lobes ( Fennah 1945, fig. 41 as lquitosa Fennah); mesonotum usually bearing two large tubercles; South America, Trinidad..................................... Kubilaya Koçak & Kemal

- Costal margin of forewing not lobed; mesonotal tubercles absent................................................ 3

3. Head in lateral view rounded and weakly projected, length in front of eye less than widest length of eye; forewing white with dark spots; Guyana..................................................................... Labicerus Erichson

- Head in lateral view strongly projected in front of eyes, 2x or more at widest length of eye........................... 4

4. General color rose or reddish; in lateral view, dorsum of head sinuate; dorsal margin of wings in repose sharply angled dorsally in apical third; forewings with dusky spots in most cells; USA...................................... Apache Kirkaldy

- General color white or yellow; in lateral view, dorsum of head flat or rounded, dorsal margin of wings nearly straight; forewings usually without dusky spots in most cells (although some dark spots may be present); USA, Mesoamerica............... 5

5. Demarcation between vertex and frons in lateral view obtusely angular; vertex in lateral view more or less flattened............................................................................................... Otiocerus Kirby

- Demarcation between vertex and frons in lateral view smoothly rounded; vertex in lateral view convex................. 6

6. Head elongate, length about 1.4x greatest width; vertex in lateral view sinuate.......................... Shellenius Ball

- Head shorter and broader, length 0.5–0.8x greatest width; vertex in lateral view convex................ Litophallus gen. n.