Please include the size in your description. Size often matters. The patch of epiandrous fusillae for this species is fairly obvious at smaller sizes. So, if this one is larger than that, and you don't see the obvious patch, then it is likely female.
Only moult sexing is going to be 100% accurate, but some species will give you a fairly good idea ventrally.
Try getting a photo directly on the area, instead of at a downwards angle. The male below is only a half an inch larger, and his patch of epiandrous fusillae is very obvious. Again, only a moult will tell you 100%, but if yours doesn't have that patch, then it could very well be female.
@VanessaS thank you.. I'll try get a better pic at some point. I don't know what I'm looking for. Could you explain please? I thought if it looks like there is a slit then it could be female? Is that right? X
@Rachelx91 You're looking for them not having a black dot of dark hairs above the furrow area like the photo I posted above. In addition, you might see a row of moustache-like hairs going along the entire length of the furrow and their furrow resembles lips. This is one of my females at a bit smaller size...