We have got a case of human gential myiasis. We have got 6-7 maggots from the lesion. Can the fly be identified by looking at the morphology of these maggots?
There are several papers on flies/worms related to human genital myiasis, but species ID would be difficult. Smith (1989) has an entire chapter devoted to diptera and myiasis. You may check that book available online (see below). As already said by Shuvra, photo's may help.