|Physical appearance||Wears lots of jewelry, very tall pointed hat and silver glasses on a chain.|
|Marital Status||married, Dr Earwig|
|Books||A Hat Full of Sky|
The Sea and Little Fishes
The Shepherd's Crown
Mrs. Earwig (pronounced "Ah-widge") is an arrogant, snobbish witch. She is married to a retired wizard Dr Earwig, and is of the kind of witches who read books, and has even written several books on "magik". Her last, and only, trainee was Annagramma Hawkin.
Although she does use practical folk wisdom as a witch, she also tends to use crystals, jewelry and other items considered useless by witches of Esmeralda Weatherwax's tradition. (Not that Granny doesn't recognise the uses of Boffo, but you don't have to go believing it yourself.) Needless to say these two are intense rivals, and treat each other with hostile politeness.
She does however help promote the craft among younger girls by selling her various books including First Flights in Witchcraft, My Fairy Friends, and To Ride a Golden Broomstick, in addition to an unnamed book on "Flower Magick". These are widely denounced by other witches as being ridiculous nonsense that only appeals to those who don't know what witchcraft is really about.
Her husband Dr. Earwig is mentioned in Unseen Academicals as one of the few wizards who have retired (although he technically just left to get married, which, according to Mustrum Ridcully, is the same as dying).
Her complete self-absorption does come in handy. In The Shepherd's Crown, she is shown to be completely immune to Elven Glamour, which leverages human self-doubt. With Letice, there's nowhere for such a lever to gain a purchase.
Letice Earwig's character is most likely inspired by a number of real-world Wiccans, witches and neopagans. In particular, parallels are drawn between Earwig and Wiccan author Silver RavenWolf, author of To Ride a Silver Broomstick. RavenWolf is generally strongly disapproved of as "fluffy" by the vast majority of Wiccans and witches in the real world, much as Mrs Earwig is strongly disapproved of and considered woolly by Discworld witches and wizards. Both Earwig and RavenWolf are seen to be pandering to teenagers who want to play at being dark and mysterious by becoming witches, but without any real content behind them.
Her insistence on having her name pronounced 'are-wij' is possibly a reference to Mrs Bucket from the British sitcom 'Keeping up appearances'. The character insists that her name is actually pronounced 'bouquet', due to middle class pretensions.