Interesting question!

In the U.S., the degree system is as follows:
AA/AS (Arts/Science) 2 yrs. total
BA/BS 4 yrs. total
MA/MS 5-6 yrs. total
PhD 8 yrs. and upward

This corresponds rather well with the following system:

The degree programs at Stockholm University consists of :
Fil. kand. degree (BA equivalent), totally 3 years.
Fil. mag. degree (MS equivalent), totally 4 years.
Fil. lic. degree, BA or MS + about 2.5 years
Fil. dr. degree (PhD equivalent), BA or MS + another 4-5 years.

I would therefore be tempted to call it a Ph.D - even though it is a little different - and write the Swedish title in brackets.

That is just my 2 cents! (I can already see people shaking their heads...)
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[From Wikipedia]
Doctor of Philosophy (Ph.D.), an abbreviation for the Latin "Philosophiæ Doctor" (or alternatively Doctor philosophiæ, D.Phil.) was originally a degree granted by a university to a learned individual who had achieved the approval of his peers and who had demonstrated a long and productive career in the field of philosophy. The appellation of "Doctor" (from Latin: teacher) was usually awarded only when the individual was in middle age. It indicated a life dedicated to learning, to knowledge, and to the spread of knowledge.

The degree was popularised in the 19th century at the Friedrich Wilhelm University in Berlin as a degree to be granted to someone who had undertaken original research in the sciences or humanities. From here it spread to the U.S., arriving in the UK at the start of the 20th century. This displaced the existing Doctor of Philosophy degree in some Universities — for instance the D.Phil. (higher doctorate in the faculty of philosophy) at the University of St Andrews was discontinued and replaced with the Ph.D. (research doctorate). However some UK universities such as Oxford and Sussex retain the D.Phil. appellation for their research degrees, as do German and Scandinavian universities.
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The www.soc.uu.se site is very interesting.




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Note added at 2 hrs 0 min (2005-09-06 10:17:27 GMT)
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The problem with using "licensiate" - at least in the U.S. - is that people are not going to know what it is!

There seems to be some confusion over this title/degree. In 1968 or so the Social Democratic government took it into their heads to modify academic life to fit their own conceptions. Several academic ranks such as biträder professor were created which indicated a professor who was in fact not the head of an Institute and who had a more precarious future than a "real" professor. The Fil Lic was converted to another strange status. American Ph.D.s mean almost nothing as far as academic achievement is concerned, so the party of the time, dummied down the entire system to sort of conform to their concept of North American standards. So it is still not clear. If your Fil. Lic. antedated 1970 it became a higher status title than the subsequent title, but with no practical means of discrimination between the two. The older is closer in requirements to an American University Ph. D. with a respected graduate program. The latter or later one, falls in with state "Normal" Schools where a D.Ed. or Ph. D. is a sign of persistence rather than attainment.