Gibbs, J. “Integrative Taxonomy Identifies New (and Old) Species in the Lasioglossum (Dialictus) Tegulare (Robertson) Species Group (Hymenoptera, Halictidae)”. Zootaxa, vol. 2032, no. 1, Mar. 2009, pp. 1–38, doi:10.11646/zootaxa.2032.1.1.