Plecoptera: LeuctridaeDespaxia augusta - Smooth Needlefly(Banks, 1907)Created 10 June 2009
LinksOn this website:Leuctridae Introduction Other Websites: Map - Kondratieff, Boris C. and Richard W. Baumann (coordinators). 2000. Stoneflies of the United States. Jamestown, ND: Northern Prairie Wildlife Research Center Online. (Version 12DEC2003). http://www.npwrc.usgs.gov/resource/distr/insects/sfly/usa/130.htm ReferencesBottorff,RL and Bottorff,LD 2007 Phenology and diversity of adult stoneflies (Plecoptera) of a small coastal stream, California. Illiesia 3(1):1-9 pdf 292 KbRichardson, JS 2001 Life cycle phenology of common detritivores from a temperate rainforest stream. Hydrobiologia 455 (1) 87-95. DOI - 10.1023/A:1011943532162 Abstract: The timing of life cycles, including growth rates, was determined for eight common species of detritivorous insects in a second-order stream in southwestern British Columbia, Canada. Six of the species (Zapada cinctipes, Z. haysi, Malenka californica, M. cornuta, Capnia sp., and Lepidostoma roafi) had simple, univoltine life cycles. The leuctrid stonefly Despaxia augusta has a 2-year life cycle, with an apparent egg diapause of about 6 months. The chironomid Brillia retifinis produced at least three generations per year. The major growth periods for the set of species considered here span the entire year. Adults of several species exhibited seasonal declines in size at emergence, but one species had larger adults as the emergence period proceeded. Closely related taxa had more similar life cycle timing than more distantly related species suggesting a degree of phylogenetic constraint in phenology of their life cycles. The influence of the timing of leaf drop on timing of life cycles for these animals does not fit with proposed scenarios based on fast and slow leaf processing rates. Stewart,KW; Stark,BP 2002 Nymphs of North American Stonefly Genera. 2nd edition The Caddis Press, Columbus, Ohio. 510 pages. Zhang,Y and Richardson,JS 2007 Unidirectional prey–predator facilitation: apparent prey enhance predators' foraging success on cryptic prey. Biology Letters 3 (3)348-351. Full Text Brown, Wendy S. 2009 Stoneflies (Plecoptera) of Gunnison County, Colorado, USA www.gunnisoninsects.org |