A new species of Acentrella Bengtsson (Ephemeroptera: Baetidae) from Great Smoky Mountains National Park, USA

被引：9
|
作者：
Jacobus, Luke M. [1 ]
McCafferty, W. P. [1 ]
机构：
[1] Purdue Univ, Dept Entomol, W Lafayette, IN 47907 USA
来源：
AQUATIC INSECTS | 2006年 / 28卷 / 02期
基金：
美国国家科学基金会;
关键词：
Acentrella barbarae; new species; Baetidae; Ephemeroptera; Nearctic; identification key;
D O I：
10.1080/01650420600784855
中图分类号：
Q96 [昆虫学];
学科分类号：
摘要：
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.
引用
收藏
页码：101 / 111
页数：11
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