The other motherly alien was an alien who lived on a desert planet. Like the motherly alien, she would help visitors to the planet. However, her method of help was different. Rather than food, she would give sunscreen and a hat to visitors. This Other motherly alien is an alter-ego of Calvin's Mother.
This alien appeared to be a humanoid insect with extremely long legs and saucer-shaped feet. Like many aliens Spiff encountered, she was made up of several differently colored body parts.
This alien must have been compassionate, as she helped those who visited the planet that were in need, but she was more scolding than the motherly alien, reproaching Spiff for his lack of common sense.