Trans-Pecos Black Headed Snake
Tantilla cucullata
Alternate Name(s):
Venom Status:
Non Venomous
Characteristics:
At a length of up to 25”, this is the largest of the Tantilla in the USA. The 2 former subspecies, T. rubra diabola and T. rubra cucullata have now been coalesced under the current species name of T. cucullata giving us 2 very different looking populations. 1 has a full black head and nape (Trans-Pecos region). The other has a black head, a white collar and then a wide black neck band and a white spot on the upper labial (lip) scale posterior to the eye (Devil’s River region). These snakes are grayish-brown to brown dorsally with white bellies. Scales smooth in 15 rows.
Unique Features:
At a length of up to 25”, this is the largest of the Tantilla in the USA. The 2 former subspecies, T. rubra diabola and T. rubra cucullata have now been coalesced under the current species name of T. cucullata giving us 2 very different looking populations. 1 has a full black head and nape (Trans-Pecos region). The other has a black head, a white collar and then a wide black neck band and a white spot on the upper labial (lip) scale posterior to the eye (Devil’s River region). These snakes are grayish-brown to brown dorsally with white bellies. Scales smooth in 15 rows.
Habitat and Diet:
Grasslands, rocky hillsides, pine woodlands. Primarily feeds on Small centipedes and insect larvae.
Geographic Range:
TX
Latest News
![Get medical help as soon as you can (dial 911 or call local Emergency Medical Services [EMS]). Serious snake envenomation is treated with antivenin.](https://semhandyman.com/stag/wp-content/uploads/2023/12/WhattodoifYouAreBittenbyaVenomousSnake-300x180.png)
What to Do If You Are Bitten By a Venomous Snake

How Do Rat Snakes Climb?

What Are the Differences Between Snakes and Legless Lizards?
