Nyoka-miti ni nyoka wa jenasi Dipsadoboa katika familia Colubridae. Amepewa jina hili kwa sababu hukaa mitini takriban masaa yote. Nyoka hawa ni warefu kiasi, m 1.4 kwa kipeo lakini sm 60-90 kwa kawaida. Rangi yao ni kijani au kahawia. Spishi kahawia zina kilingo kama marumaru. Rangi hizi zinaweza kuchukuliwa kama rangi za kamafleji. Kama jina lao linadokeza huishi mitini ambapo hukamata vyura, mijusi-kafiri na vinyonga. Chonge ni meno ya nyuma lakini sumu yao haina hatari kwa watu. Dipsadoboa aulica, Nyoka-miti Marumaru (Marbled tree snake) Dipsadoboa brevirostris, Nyoka-miti wa Gini (Guinean tree snake) Dipsadoboa duchesnii, Nyoka-miti wa Duchesne (Duchesne's tree snake) Dipsadoboa flavida, Nyoka-miti Mabaka (Cross-barred tree snake) Dipsadoboa shrevei, Nyoka-miti wa Shreve (Shreve's tree snake) Dipsadoboa underwoodi, Nyoka-miti wa Underwood (Underwood's tree snake) Dipsadoboa unicolor, Nyoka-miti Kijani wa Günther (Günther's gree tree snake) Dipsadoboa viridis, Nyoka-miti Kijani wa Laurent (Laurent's gree tree snake) Dipsadoboa weileri, Nyoka-miti Mkia-mweusi (Black-tailed gree tree snake) Dipsadoboa werneri, Nyoka-miti Kijani wa Usambara (Usambara gree tree snake) Nyoka-miti kijani wa Laurent Spawls, S., Howell, K., Drewes, R. & Ashe, J. (2002) A field guide to the Reptiles of East Africa.