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A second species of the North American mayfly genus Amercaenis Provonsha and McCafferty (Ephemeroptera: Caenidae).

Provonsha AV, McCafferty WP - J. Insect Sci. (2006)

Bottom Line: The new species differs from the only other known species of the genus, A. ridens (McDunnough), for example, in having segments 2 and 3 of the labial palps subequal in length, and having the transverse row of setae on the forefemora consisting of long spatulate setae.Adults provisionally assigned to the new species are associated with the larvae morphologically and in locale do not fit any other adults of North American Caenidae, and differ from the congener A. ridens by dark dorsal coloration.The two species of Americaenis are biogeoraphically disjunct.

View Article: PubMed Central - PubMed

Affiliation: Department of Entomology, Purdue Unviversity, West Lafayette, IN 47905, USA. provonsh@purdue.edu

ABSTRACT
A new species of the psammophilous and brushlegged North American genus Amercaenis Provonsha and McCafferty, Amercaenis cusabo Provonsha and McCafferty, new species, is described from larvae taken from the Black River (North Carolina), the Pee Dee River (North Carolina), and the Savannah River (Georgia and South Carolina). The new species differs from the only other known species of the genus, A. ridens (McDunnough), for example, in having segments 2 and 3 of the labial palps subequal in length, and having the transverse row of setae on the forefemora consisting of long spatulate setae. Adults provisionally assigned to the new species are associated with the larvae morphologically and in locale do not fit any other adults of North American Caenidae, and differ from the congener A. ridens by dark dorsal coloration. The two species of Americaenis are biogeoraphically disjunct.

Show MeSH
Amercaenis cusabo, male adult. 10, Body, dorsal. 11, Hind femur. 12, Base of abdomen, lateral.
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i1536-2442-6-10-1-f10: Amercaenis cusabo, male adult. 10, Body, dorsal. 11, Hind femur. 12, Base of abdomen, lateral.

Mentions: Head: Vertex (Fig. 10) shaded with dark brown, and with medium brown band between lateral ocelli; anterior and posterior margins of head capsule edged with dark brown. Antennae pale.


A second species of the North American mayfly genus Amercaenis Provonsha and McCafferty (Ephemeroptera: Caenidae).

Provonsha AV, McCafferty WP - J. Insect Sci. (2006)

Amercaenis cusabo, male adult. 10, Body, dorsal. 11, Hind femur. 12, Base of abdomen, lateral.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2990297&req=5

i1536-2442-6-10-1-f10: Amercaenis cusabo, male adult. 10, Body, dorsal. 11, Hind femur. 12, Base of abdomen, lateral.
Mentions: Head: Vertex (Fig. 10) shaded with dark brown, and with medium brown band between lateral ocelli; anterior and posterior margins of head capsule edged with dark brown. Antennae pale.

Bottom Line: The new species differs from the only other known species of the genus, A. ridens (McDunnough), for example, in having segments 2 and 3 of the labial palps subequal in length, and having the transverse row of setae on the forefemora consisting of long spatulate setae.Adults provisionally assigned to the new species are associated with the larvae morphologically and in locale do not fit any other adults of North American Caenidae, and differ from the congener A. ridens by dark dorsal coloration.The two species of Americaenis are biogeoraphically disjunct.

View Article: PubMed Central - PubMed

Affiliation: Department of Entomology, Purdue Unviversity, West Lafayette, IN 47905, USA. provonsh@purdue.edu

ABSTRACT
A new species of the psammophilous and brushlegged North American genus Amercaenis Provonsha and McCafferty, Amercaenis cusabo Provonsha and McCafferty, new species, is described from larvae taken from the Black River (North Carolina), the Pee Dee River (North Carolina), and the Savannah River (Georgia and South Carolina). The new species differs from the only other known species of the genus, A. ridens (McDunnough), for example, in having segments 2 and 3 of the labial palps subequal in length, and having the transverse row of setae on the forefemora consisting of long spatulate setae. Adults provisionally assigned to the new species are associated with the larvae morphologically and in locale do not fit any other adults of North American Caenidae, and differ from the congener A. ridens by dark dorsal coloration. The two species of Americaenis are biogeoraphically disjunct.

Show MeSH