A New Species of Acentrella Bengtsson (Ephemeroptera: Baetidae) from Great Smoky Mountains National Park, USA
Jacobus LM and McCafferty WP. 2006. A New Species of Acentrella Bengtsson (Ephemeroptera: Baetidae) from Great Smoky Mountains National Park, USA. Aquatic Insects. 28(2):101-111
Acentrella barbarae sp. n. is described from eggs, larvae, and imagines collected from Great Smoky Mountains National Park, North Carolina and Tennessee, USA. Larvae were collected from cobblepebble substrate in stream rapids. Life stages were associated by rearing. Eggs have longitudinal chorionic ridges with small, longitudinal furrows. Larvae are distinguished by having segment 3 of the labial palp apically rounded, abdominal terga with posteromedian projections, and tibiae and tarsi with relatively short setae on the outer margins. Imagines are distinguished by the colouration and posterior elevation of abdominal terga. Other Acentrella larvae occur in the same streams as the new species, including A. parvula, which we report from Tennessee for the first time. We provide an updated key to the larvae of North American Acentrella species.
- Type
- Journal Article
- Authors
- Jacobus, Luke; McCafferty, W
- Units
- GRSM
- Keywords
- Abrams Falls, Animal Studies, APHN, Appalachian Highlands Network, Aquatic Insects, Baetidae, Big Creek, Bradley Fork, Cades Cove, Cosby, Deep Creek, Elkmont, Ephemeroptera, Forge Creek, Great Smoky Mountains National Park, GRSM, GRSM-00034, Identification Key, Insects, Jakes Creek, Larvae, mayfly, Middle Prong Little River, Nearctic, New Species, Oconaluftee, Parsons Branch, Ravensford, SER, Smokemont, Southeast Region, Tow String, Tremont, Twentymile
- Subjects
- Ecological Framework: Biological Integrity | Focal Species or Communities | Freshwater Invertebrates