Love, lies and spies by Cindy Anstey.

Juliana Telford is not your average nineteenth-century young lady. She's much more interested in researching ladybugs than marriage, fashionable dresses, or dances. So when her father sends her to London for a season, she's determined not to form any attachments. Instead, she plans to secretly publish their research.

As new condition. Paperback, Swoon Reads, 344 pages. A great gift for YA readers. Rave review from Austenprose website.