''Hoplia callipyge'' is a species of scarab beetle in the family

Scarabaeidae The family Scarabaeidae, as currently defined, consists of over 30,000 species of beetles worldwide; they are often called scarabs or scarab beetles. The classification of this family has undergone significant change in recent years. Several sub ...

. It has been recorded in the western United States, in

British Columbia British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...

in Canada, and in

Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...

in Mexico. Adults are about long, wide, oval, and brown. They are very similar visually to other ''Hoplia'' species, especially '' Hoplia hirta'' and '' Hoplia laticollis''. The beetles are active March through May and are noted for feeding on the petals of light-colored

roses A rose is either a woody perennial flowering plant of the genus ''Rosa'' (), in the family Rosaceae (), or the flower it bears. There are over three hundred species and tens of thousands of cultivars. They form a group of plants that can be e ...

. However, they will also feed on other flowers and the young leaves and fruit of certain plants. Larvae hatch from white eggs in soil and feed on roots and decaying plants.

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