Marchena
G. W. Peckham & E. G. Peckham, 1909
Marchena is a of to the western United States. Its sole described , M. minuta, inhabits conifer bark along the Pacific coast. The genus is the only North representative of the Heliophaninae. Marchena forms a with the genera Afraflacilla, Pseudicius, and Festucula.
Pronunciation
How to pronounce Marchena: //maɹˈkeɪ.nə//
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Identification
M. minuta can be distinguished from other in its range by the presence of on the first of its first legs. This feature is diagnostic within its geographic area.
Images
Habitat
Dwells on the bark of conifer trees. Associated with coniferous forest along the Pacific coast.
Distribution
Western United States: California, Washington, and Nevada.
Similar Taxa
- AfraflacillaForms with Marchena; related in same clade
- PseudiciusForms with Marchena; related in same clade
- FestuculaForms with Marchena; related in same clade
More Details
Etymology
The name is probably derived from the Spanish city of Marchena, Seville. The describers had a habit of naming after places unrelated to the ' distribution. The specific epithet minuta is Latin for 'small, minute'.
Taxonomic Significance
Marchena is the only North in the Heliophaninae, making it notable for biogeographic studies of evolution.