Manuscript under submission at Journal of Heredity ### **Abstract** Smoky rubyspot damselflies (_Hetaerina titia_ Drury, 1773) are one of the most commonly encountered odonates along streams and rivers on both slopes of Central America and the Atlantic drainages in the US and southern Canada. Owing to their highly variable wing pigmentation, they have become a model system for studying sexual selection and interspecific behavioural interference. Here, we sequence and assemble the genome of a female smoky rubyspot. Of the primary assembly (i.e., the principle pseudohaplotype), 98.8%  is made up of 12 chromosomal pseudomolecules (2N = 22A + X). There are 75 scaffolds in total, an N50 of 120 Mbp, a contig-N50 of 0.64 Mbp, and a high arthropod BUSCO score (C:97.6% [S:97.3%, D:0.3%], F:0.8%, M:1.6%). We then compare our assembly to an assembly of a blue-tailed damselfly genome (_Ischnura elegans_), the most complete damselfly assembly to date, and a recently published assembly for an American rubyspot damselfly (_H. americana_). Collectively, these resources make _Hetaerina_ a genome-enabled genus for further studies of the ecological and evolutionary forces shaping biological diversity.