Eurytides philolaus, the dark zebra swallowtail or dark kite-swallowtail, is a butterfly of the family Papilionidae. It is found from southern Texas to northern South America.

The wingspan is 90–95 mm.

"Antenna black; the 7. pale green band of the forewing only represented by a spot; hindwing with 2 red spots posteriorly; on the under surface the red line of the hindwing edged with black at both sides, undulate anteriorly. Scent-scales of the male short, broad, irregular, produced in a number of filaments. The female is in 2 forms: female f. philolaus Boisd. similar to the male, the underside paler, female f. niger Eimer (nigrescens Eimer; felicis Fruhst.) the pale green bands of the membrane of the wings scaled with black, the wings therefore black with slight traces of the bands."

Biology: The butterfly is found in low situations, often resting in crowds on the sand at the edge of rivers. The larvae feed on Annonaceae species.

Subspecies: There are two recognised subspecies:

• Eurytides philolaus philolaus (Mexico, Honduras, Costa Rica, southern Texas)
• Eurytides philolaus xanticles (Bates, 1863) (Panama, northern Colombia, northern Venezuela)