Lampetis dilaticollis is a beetle of the family Buprestidae.
Lampetis dilaticollis can reach a length of about . Elytra, pronotum and antennae are black with blue and violet tinge. Elytra show brassy-cupreous punctures and impressions. The surface of the pronotum is smooth, without punctures. Ventral surface is bluish black.
This species can be found in Mexico.