Castianeira alteranda is a species of true spider in the family Corinnidae. It is found in the US and Canada.Dean DA (2016). "Catalogue of Texas spiders". ZooKeys 570: 1-703.
References
Bradley, Richard A. (2012). Common Spiders of North America. University of California Press. Ubick, Darrell (2005). Spiders of North America: An Identification Manual. American Arachnological Society.