Platycotis acutangula
Platycotis cf. acutangula is a ( Membracidae) documented in dry-mesic oak-hickory forests of the Missouri Ozarks. The Platycotis is characterized by distinctive pronotal expansions that form various shapes and projections. This record represents a tentative identification (cf. = confer, meaning "compare with") based on morphological similarity to P. acutangula. Treehoppers in this genus are typically associated with oak species (Quercus), where they feed on phloem sap.
Identification
The Platycotis can be distinguished from other genera by the pronounced development of the pronotum, which extends posteriorly over the and often forms angular or leaf-like projections. Specific identification to P. acutangula requires examination of pronotal shape, particularly the degree of angularity and the presence of carinae. The cf. designation indicates uncertainty and suggests comparison with verified specimens is needed. Separation from the P. vittata (also documented in the same region on Quercus stellata) would require detailed examination of pronotal patterning and coloration.
Habitat
Dry-mesic upland oak-hickory forest; specifically documented on twigs of Quercus stellata (post oak).
Distribution
Documented from Washington County in extreme southwestern Missouri, within the Missouri Ozarks. The broader range of P. acutangula is not established from this source.
Seasonality
Observed in late summer (August), with activity extending into nighttime hours (approximately 2 am observation).
Host Associations
- Quercus stellata - observed onpost oak twig
Similar Taxa
- Platycotis vittataCongeneric documented in same and region on same (Quercus); requires careful examination of pronotal for separation