Unfortunately my Greek is pretty rusty too, but for what it's worth, word by word I think it would be roughly this. I don't really see how ἐξετράπη is translated as 'he occupied himself'. I think it's the 3rd person singular aorist indicative passive of ἐξετράπη (turn aside, turn away). I guess it's an idiom. Also, is ἔπωτας a mistype for ἔρωτας?

τὸ μὲν πρῶτον

first

εἰς ὕβρεις

to the outrages

γυναικῶν

of women

καὶ

and

παρανόμους ἔρωτας

transgressive loves

βαρβάρων

of the foreigners

ἐξετράπη

he was turned aside

James has done the hard lifting already.  Thank you.

To turn that literal translation into something more natural: "He was first diverted into raping women and having illicit sex with barbarians."

γυναικῶν here is referring to women, not their quarters.  βαρβάρων, being inclusive, could suggest Harpalus was disgracing himself with Persians, etc. of both sexes.  

While I do not know for certain, I would not be surprised if γυναικῶν here referred to Greek women.  The Greeks were very good at respecting barbarians for their accomplishments, courage, etc. while never forgetting to set themselves apart.

YES! Kevin's translation is the closest to the ancient Greek text. And yes Diodoros speaks of έρωτας (not επωτας) 

Thank you James and Kevin for your guidance on the translation.  And to you also Eleni for affirming the accuracy of Kevin's translation.  Apologies, too, for the ἔρωτας mistype.

The new translation, together with comments, confirms my own suspicions.  Which, in turn, also gives weight to the conclusions I had already drawn regarding where the charges against Harpalus originally came from.

Much appreciated.

P.S. Have just included a brief acknowledgement of all your help in the draft paper I'm currently working in.  Thanks again.

I am very honored to be referred to. I should like to interact with you on your research areas for collaborative research and publications.

I agree with Kevin Lee's translation and comments.

Indeed, the distinction can be between Greek (and possibly married) women, raped, and the non Greek persons (barbarians) of both sexes, with whom H. had sexual intercourses; or better between the rapes (ὕβρις is the usual word for this, including violence) and the other kinds of illegal (παράνομος) sexual intercourses (without violence?). In any case, the first part is maybe the worst one.

Οne of the difficulties is the meaning of  παράνομος: obviously, rape of Greek married women is illegal too, but maybe not the rape of barbarian women, or slaves (if it's still seen as a rape). Even if it means something like "transgressive" or ""criminal", without any legal meaning, you would have to set what kind of sexuality would be scandalous for a Greek male.

Apologies, but I should have you both, Thorwald and Benoit, for your helpful input as well.  To busy finalising the present draft for posting on line.  You can find the publication here:

https://www.researchgate.net/publication/317357456_Appendix_4_Harpalus

and on academia.edu, here:

https://www.academia.edu/s/eb0b7eaec5/appendix-4-harpalus

I'd be glad of any feedback.

Working Paper Appendix 4: Harpalus

Kathleen, may I ask:  Eleni noted above that "Diodoros speaks of έρωτας (not επωτας)", and you have replied that it was simply a typo, but I've been wondering if there was some subtle reason why you were inclined to think that γυναικῶν referred to 'the women's quarters or part of a house, rather than women per se'? I'm guessing that you had seen it translated that way somewhere – ?

Margaret, the γυναικῶν reference was my own misreading of the only entry I could find in the online Liddell-Scott-Jones lexicon:

http://stephanus.tlg.uci.edu/lsj/#eid=23858&context=lsj&action=from-search

The lexicon does not give a direct translation of the word, or indicate the part of speech.  Having now dug out my old course books, I'm guessing the ῶν ending means it's genitive plural.  But the significance of the αικ part of the αικῶν ending eludes me.

Thanks, Kathleen: I'd thought that perhaps you are using someone's  rather free translation. But, more usefully for my own purposes: I hadn't come across that link before, whose homepage gives advice on Greek fonts, etc. So, thanks again!