Aphonopelma hentzi, the Texas Brown tarantula, (also known as Oklahoma Brown tarantula or Missouri tarantula), is one of the most common species of tarantula thriving in the southern-most United States today. Texas Browns can grow in excess of a four inch leg span, and weigh more than 3 ounces as adults. The body is dark brown in color. Shades may vary between individual tarantulas and is more distinct after moult.
Wolf spiders are members of the family Lycosidae, from the Ancient Greek word "λύκος" meaning "wolf". They are robust and agile hunters with excellent eyesight. They live mostly solitary lives and hunt alone.