Magnacca, K.N. 2011. Two new species of Hylaeus (Nesoprosopis) (Hymenoptera: Colletidae) from O‘ahu, Hawai‘i. Zootaxa. 3065, 1 (Oct. 2011), 60–65. DOI:https://doi.org/10.11646/zootaxa.3065.1.6.