The Nearctic agelenid spider genus Agelenopsis Giebel 1896 is revised, with redescriptions of the 13 known species including: A. actuosa (Gertsch & Ivie 1936), A. aleenae Chamberlin & Ivie 1935, A. aperta (Gertsch 1934), A. emertoni Chamberlin & Ivie 1935, A. kastoni Chamberlin & Ivie 1941, A. longistyla (Banks 1901), A. naevia (Walckenaer 1841), A. oklahoma (Gertsch 1936), A. oregonensis Chamberlin & Ivie 1935, A. pennsylvanica (C.L. Koch 1843), A. potteri (Blackwall 1846), A. spatula Chamberlin & Ivie 1935, and A. utahana (Chamberlin & Ivie 1933). We also include an identification key to the species and a species distribution map. Our cladistic analysis of Agelenopsis is based upon 31 genitalic and somatic characters using Hololena hola (Chamberlin 1928) as the outgroup taxon and including three species of Barronopsis Chamberlin & Ivie 1941 in the analysis since Barronopsis has been considered a sister taxon to Agelenopsis in previous work. The cladistic analysis found 22 most parsimonious trees unambiguously supporting Agelenopsis monophyly. The majority rule consensus provides support for a clade including (((A. pennsylvanica A. potteri) A. actuosa) A. emertoni); another clade including ((((A. aleenae A. spatula) A. aperta) A. kastoni) A. naevia); and a third clade including ((A. oregonensis A. utahana) A. longystyla). Our analysis supports species groups proposed by researchers using molecular characters.
How to translate text using browser tools
1 April 2015
Revision and morphological phylogenetic analysis of the funnel web spider genus Agelenopsis (Araneae: Agelenidae)
Julie Whitman-Zai,
Maren Francis,
Margaret Geick,
Paula E. Cushing
ACCESS THE FULL ARTICLE
The Journal of Arachnology
Vol. 43 • No. 1
April 2015
Vol. 43 • No. 1
April 2015
Barronopsis
cladistic analysis
Hololena
phylogeny
taxonomy