Helcystogramma subvectella is a moth in the family Gelechiidae. It was described by Francis Walker in 1864. It is found in Amazonas, Brazil.
Adults are dark cupreous, the forewings with four chalybeous (steel-blue) bands, the first near the base and the fourth near the exterior border.List of the Specimens of Lepidopterous Insects in the Collection of the British Museum 29: 610
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