We studied the reproductive cycle of Sceloporus dugesii from Pátzcuaro, Michoacán, Mexico. Males and females reached sexual maturity at the same snout–vent length (50 mm). Reproductive activity of both sexes was asynchronous, similar to other species of the torquatus group. Testicular recrudescence was July–August and maximum activity was September–December. Vitellogenesis occurred during early September to late March, with ovulation occurring November–December, and embryonic development was observed December–May. Mean clutch size was 4.4 ± 0.34. Clutch size was not correlated with snout–vent length of females. The reproductive cycle of S. dugesii is similar to other montane species of the torquatus group. Our study showed that S. dugesii shares some reproductive characteristics with its sister species.