Exelastis montischristi is a species of moth in the genus Exelastis known from Hispaniola,Arthropods of Hispaniola (Dominican Republic and Haiti) Ecuador, Grenada, Jamaica, Martinique, the Virgin Islands, Florida and Texas.Description of a New Species of Exelastis (Lepidoptera: Pterophoridae) from the Neotropics, With Keys to Adults of the Four Species Occurring in Florida It has also been recorded from Tanzania.

Adults take flight in January, July and August, and have a wingspan of about 16 millimetres.Description of a New Species of Exelastis (Lepidoptera: Pterophoridae) from the Neotropics, With Keys to Adults of the Four Species Occurring in Florida

Its host plant is Rhynchosia minima.

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