Orchelimum superbum
Rehn & Hebard, 1915
superb meadow katydid
Orchelimum superbum, the superb meadow katydid, is a of meadow katydid in the Tettigoniidae. It is native to North America, with confirmed records from Florida, Georgia, Louisiana, Maryland, Mississippi, and Oklahoma. As a member of the Orchelimum, it shares characteristics with other meadow katydids, including long and association with grassy or marshy . The species was described by Rehn and Hebard in 1915.
Pronunciation
How to pronounce Orchelimum superbum: /ɔːrˈkɛlɪməm suːˈpɜːrbəm/
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Habitat
Meadow katydids in the Orchelimum are associated with wetlands, lush meadows, prairies, and tall grass . These environments provide the grasses and forbs that constitute their primary food sources, as well as cover from .
Distribution
Confirmed records exist from Florida, Georgia, Louisiana, Maryland, Mississippi, and Oklahoma. The is native to North America.
Seasonality
reach maturity in late summer and early autumn, when they become active in seeking mates.
Diet
Meadow katydids in the Orchelimum feed on grass seeds, leaves, and flowers of forbs. They are opportunistic on other insects, particularly injured individuals such as leafhoppers, planthoppers, and smaller katydids. Females consume the , a gelatinous protein-rich gift provided by males during mating.
Life Cycle
Meadow katydids undergo with , nymph, and stages. Nymphs develop through summer, reaching adulthood by late summer or early autumn. Males produce calling songs to attract females. During copulation, males transfer a consisting of a sperm container and a nutritious , which the female consumes after mating.
Behavior
Males stridulate to produce calling songs for mate attraction. They are among the most accomplished singers in Orthoptera, with modified forewings bearing a file of teeth on one wing and a scraper on the other. Meadow katydids use their front to manipulate food items while feeding. Females may cannibalize smaller katydids, including conspecifics.
Ecological Role
Meadow katydids convert substantial plant into insect biomass. of related meadow katydid have been documented to convert nearly 16% of rush biomass into biomass, with seed reducing seed production of rushes and grasses by 30-50%. As omnivores, they function as both herbivores and opportunistic in their .
Human Relevance
Meadow katydids contribute to the acoustic environment of wetlands and grasslands through male calling songs. They are not considered agricultural pests, though their seed can impact plant in natural systems. Their bites can be painful due to strong adapted for cracking grass seeds.
Similar Taxa
- Neobarrettia spinosaBoth are large predatory katydids with powerful that can inflict painful bites. N. spinosa is an arid-land katydid with prominent spines, while O. superbum is a meadow katydid associated with wetlands and grasslands.
- Conocephalus spp.Smaller meadow katydids in the same Conocephalinae. Orchelimum are larger and may prey upon Conocephalus individuals.
- Neoconocephalus spp.Conehead katydids in the same , generally larger than Orchelimum, with distinct cone-shaped and different preferences.
More Details
Taxonomic Note
Orchelimum superbum was described by Rehn and Hebard in 1915. The Catalogue of Life lists it as a synonym, though GBIF and NCBI treat it as an accepted . The Orchelimum belongs to the tribe Conocephalini within Conocephalinae.
Color Change in Preservation
Like other green katydids, live individuals are predominantly green but fade to yellow or brown after death and pinning. This color change can complicate identification of preserved specimens.