Adults from mid-July to mid-August in eastern South Dakota.[3][4] Mature larvae are commonly found in late May. Pupae are mostly found during mid to late June within the plant stem.[5][6]
^Adamski, D., 2013: Review of the Blastobasinae of Costa Rica (Lepidoptera: Gelechioidea: Blastobasidae). Zootaxa3618 (1): 1-223. Review and full article: doi:10.11646/zootaxa.3618.1.1
^Prasifka, Jarrad R., et al. "Symptoms, Distribution and Abundance of the Stem-Boring Caterpillar, Blastobasis Repartella (Dietz), in Switchgrass." BioEnergy Research, vol. 3, no. 3, 2010, pp. 238-242.