I'm having a hell of a time determining whether this is a male or female. I've got a group of 3, and I've got one male for sure (he's been calling) and a female (she's a MONSTER compared to the male and has been all over him since he started calling), and then there's this one. Size-wise, it's smack-dab between the male and female, but not nearly as round/tubby as the female. Toe pads are almost the same size as the known male, and the back-arch sometimes looks really pronounced, sometimes not. I'm leaning towards female, but I'm really not sure. Anyone want to hazard a guess?