The Pacific Forktail, Ischnura cervula, had until now been seen in Arizona until the beginning of December. On 26 December 2010 three individuals were observed at Warm Springs, Gila, thus extending the annual flight period of the species in the state by more than three weeks.
The Plateau Dragonlet in the SW United States had until now not been found later than December 5 (Kathy Biggs, personal communication). On 11 December 2010, one male and one female were observed along the Wild Horse Pass Stream, Maricopa.
This record represents a new late flying date for the species in the SW United States.
On 26 December 2010 10-15 individuals (males and females) were observed at Warm Springs, Gila, thus extending the known flying period of the species in the state by almost one month.
The Tarascan Dancer, Argia tarascana, in Arizona is uncommon and has a limited distribution that includes the Blue River, Gila. The species had until now been found until October (Bailowitz, personal communication).
On 27 November 2010 two mature males were observed along the Blue River, thus extending the flying period of the species in the SW United States by a full month.
Two species of stream spreadwings (Archilestes sp.) live in Arizona: the Great (A. grandis) and the California (A. californicus) Spreadwings. These species are easily separated from pond spreadwings (Lestes sp. ) by their considerably larger sizes.
