Contribution to the biology and systematics of Ephemerella alleni (Ephemeroptera: Ephemerellidae)

Publication Type:

Journal Article

Authors:

Jacobus, Luke M.; Kondratieff, Boris C.; Meyer, Michael D.; McCafferty, W. P.

Source:

Pan-Pacific entomologist, Pacific Coast Entomological Society, Volume 79, Issue 3-4, p.207-211 (2003)

Call Number:

A03JAC01IDUS

URL:

http://www.ephemeroptera-galactica.com/pubs/pub_j/pubjacobusl2004p207.pdf

Keywords:

Ephemerella alleni, mayfly, SWAP

Abstract:

The adult stages of the western Nearctic species Ephemerella alleni Jensen & Edmunds are described for the first time based on reared specimens from Mount Rainier National Park, Washington. Male adults are distinguished by having ganglionic marks on the abdominal sterna, genital forceps segment 2 with a distal expansion, penes with short apical projections, and spinulelike setae medially near the outer margin and along the inner margin of the medioapical cleft. Eggs have a smooth chorion. Larvae are distinguished from congeners by having a smooth frons and abdominal terga with distinctive paired spines. Morphological variability in these and other structures can confound identification of single specimens or short series of specimens. These collection data represent the first new records of the species since its original description in 1966.

Notes:

ELECTRONIC FILE - Zoology: Invertebrates

SWAP (2/19/2016) citation:
Jacobus LM, Kondratieff BC, Meyer MD, McCafferty WP. 2003. Contribution to the biology and systematics of Ephemerella alleni (Ephemeroptera: Ephemerellidae). [accessed 2015 Jun 1]; Pan-Pacific Entomologist. 79(3-4):207–211. http://www.ephemeroptera-galactica.com/pubs/pub_j/pubjacobusl2004p207.pdf