--- As you mention above, "風俗画" is most often encountered as "genre paintings" (please see websites below)

--- However, since your translation is specifically dealing with Ukiyoe prints, your term should be adjusted to reflect the type of art (woodblock prints) so it would be correctly called "genre prints."

http://pedia.mapion.co.jp/art/風俗画
風俗画（ふうぞくが、英: Genre painting, petit genre）は、庶民の普段の生活を描写し日常生活のさまざまな面を描いた作品のことである。

http://kunio.raindrop.jp/stamp-art-barocco.htm
風俗画（ふうぞくが、英:Genre painting/petit genre）とは庶民の普段の生活を描写し日常生活のさまざまな面を描いた作品のことである。フランドルのルネサンスの画家ピーテル・ブリューゲル（父）は農民やその生活を主題とした多くの絵を描いた。

http://plaza.rakuten.co.jp/macca/diary/200710070000/
国立新美術館（六本木）で開催中のフェルメール「牛乳を注ぐ女」とオランダ風俗画展（Milkmaid By Vermeer And Dutch Genre Painting Masterwork From The Rijksmuseum Amsterdam)を５日（金）に行ってきた。
「第１章：黄金時代の風俗画」（Genre Paintings Of The Golden Age）
「第６章：１９世紀後半のリアリズムの風俗画」（Genre Paintings Of Realism In The Second Half Of The 19th Century）


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Note added at 8 hrs (2010-10-28 04:29:39 GMT)
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Or, in a more neutral sense, "genre works." But, "genre prints" is more to the point.

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Note added at 2 days6 hrs (2010-10-30 03:16:19 GMT)
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I'm taking a little visit here. :-)
.... I just wanted to add that if your article is on "woodblock prints" (Ukiyoe), the term "genre painting" would not apply (although it is probably the most popular form of genre art). Genre paintings refer to oil paintings as you can see from my above example websites.