Published online by Cambridge University Press: 31 May 2012
In the vicinity of Tuolumne Meadows, Yosemite National Park, California, an outbreak of the lodgepole needle miner, Evagora milleri (Busck), (new combination, Freeman 1960 = Recurvaria milleri Busck – Lepidoptera: Gelechiidae), continues unabated subsequent to its discovery in 1947. Although the outbreak is the third in this area since 1940, factors causing periodic increases and declines of E. milleri have not been determined. Climatic changes were found to have initiated and terminated an outbreak of an allied species, Evagora starki (Freeman), (new combination, Freeman 1960 = Recurvaria starki Freeman), on lodgepole pine in Canada (Stark 1959). However, an apparently sustained favorable climate at Yosemite, while perhaps capable of encouraging needle miner outbreaks cannot, as yet, be held responsible for their declines in this region.