Infact I have even seen in Devi temples having shrine of Lord Hanuman right with Maa Shakti. While Lord Bhairava has His significance in Shaktism,I don't know much about Lord Hanuman's significance in Shakti traditions. Is it because of Lord Hanuman(like Lord Bhairava) being avatar of Lord Shiva? Lord Hanuman is usually associated with Bhakti traditions of Lord Rama.
As a Bhakta of both Lord Hanuman and Maa Durga I want to know significance of Lord Hanuman in worship of Maa Durga and other forms of Shakti like Maa Kali and others and the relation between the same.
Edit : I just came across this article in Siddha pedia about Lord Hanuman Which goes deeper into tantric as well as Bhakti aspect of Lord Hanuman.
Also from what I have seen(at least in North India), is that during navaratri small boys are referred as Langura(s) while small girls are called Kanya(s). And in Devi temples the murti of Langura generally resemble that of Lord Hanuman in his child form. An example might be this murti of Sri Bala Vijaya Mast Hanuman from in Shri Mahakaleshwar Jyotirlinga Ujjain. Even there is no use of Langura term here but murtis resemble like that those of Langura in devi temples.
I have asked separate question for this. Linked here : Who is Langura worshipped in Devi temples?