Otiocerinae

Diagnostic characters include the distinctive wing venation pattern used by Muir to establish the subfamily, and the presence of a stridulation plate with concave external margin on the hind wing. The elongated forewings and compressed head structure aid in distinguishing Otiocerinae from other Derbidae subfamilies. Specific tribal and generic identification requires examination of additional morphological characters.

Forewings typically elongated, often more than 2.5 times longer than wide. Head strongly compressed, extending anterior to the eyes as two thin plates or ridges. Vertex often bears sensory pits. Antennae can be long and branched. Hind wing possesses a stridulation plate with a concave external margin. Highly variable coloration and wing patterns across the subfamily.

Adults associated with living plants where they feed on sap. Nymphs inhabit decaying organic matter, particularly under bark of dead tree trunks, where they feed on fungi. Some species have been collected from palms.

Widely distributed across the Americas, Sub-Saharan Africa, parts of Asia, Australia, and the Pacific. Specific records include North America (genus Otiocerus in central and eastern regions), Guyana, Costa Rica, and Madagascar.

Adults suck plant sap. Nymphs feed on fungi in decaying organic matter.

• Livistona chinensis - collected fromChinese fan palm in Madagascar; host for Paraphenice fluctus
• palms - associated withPlatocerella species associated with palms in Guyana and Costa Rica

Nymphal stage occurs in decaying organic matter, particularly under bark of dead trees. Adults emerge and move to living plants.

Nymphs are confined to decaying organic matter habitats, while adults are mobile on living vegetation. Some species have been surveyed as potential vectors of plant pathogens.

Nymphs contribute to decomposition processes in decaying wood. Adults may function as plant sap feeders and potential vectors of phytoplasmas, as has been investigated in palm-associated species.

Some species are studied as potential vectors of phytoplasmas causing palm decline. Otherwise limited direct economic or medical significance documented.

• DerbinaeAnother subfamily of Derbidae; distinguished by wing venation and absence of the stridulation plate characteristic of Otiocerinae
• RhotaninaeRelated subfamily established by Muir; differs in wing venation and head structure
• CenchreinaeRelated subfamily; Otiocerinae separated based on diagnostic wing venation patterns

• BugGuide
• Wikipedia
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Notes on Otiocerinae with description of a new tribe from Madagascar and Africa (Hemiptera: Fulgoromorpha: Derbidae)
• A new species of planthopper in the genus Paraphenice (Hemiptera: Derbidae: Otiocerinae) from palms in eastern Madagascar
• A new species of planthopper in the genus Platocerella (Hemiptera: Auchenorrhyncha: Derbidae) from palms in Costa Rica, a key to the genus and an updated molecular phylogeny of available New World Otiocerinae