Texas
Snakes in Willacy County
33 species have been documented here, 2 of them venomous.
Venomous snakes in Willacy County
Full guide & what to do if bitten →
Western Diamond-backed RattlesnakeCrotalus atroxVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Texas CoralsnakeMicrurus tenerVenomousRings of red, yellow, and black where red touches yellow; small rounded head and round pupils.
Every snake recorded in Willacy County
Western Ribbon Snake
Thamnophis proximus
Harmless
Western Diamond-backed Rattlesnake
Crotalus atrox
Venomous
DeKay's Brownsnake
Storeria dekayi
Harmless
Central American Indigo Snake
Drymarchon melanurus
Harmless
Great Plains Ratsnake
Pantherophis emoryi
Harmless
Checkered Garter Snake
Thamnophis marcianus
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
Tamaulipan Milksnake
Lampropeltis annulata
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Glossy Snake
Arizona elegans
Harmless
Texas Patch-nosed Snake
Salvadora lineata
Harmless
Black-striped Snake
Coniophanes imperialis
Harmless
Northern Cat-eyed Snake
Leptodeira septentrionalis
Harmless
Paraiba Cat-eyed Snake
Leptodeira tarairiu
Harmless
Texas Coralsnake
Micrurus tener
Venomous
North American Racer
Coluber constrictor
Harmless
Schott's Whipsnake
Masticophis schotti
Harmless
Tantilla selmae
Harmless
Texas Blind Snake
Rena dulcis
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Flat-headed Snake
Tantilla gracilis
Harmless
Scarletsnake
Cemophora coccinea
Harmless
Plains Black-headed Snake
Tantilla nigriceps
Harmless
Sinaloan Nightsnake
Hypsiglena torquata
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Brahminy Blindsnake
Indotyphlops braminus
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Long-nosed Snake
Rhinocheilus lecontei
Harmless
Desert Kingsnake
Lampropeltis splendida
Harmless
Ground Snake
Sonora semiannulata
Harmless
Levant Rat Snake
Elaphe druzei
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.