Synonyms and other taxonomic changes
Hippodamia Dejean 1837
Hemisphaerica Hope 1840
Adonia Mulsant 1846
Numbers
18 species north of Mexico.
Hippodamia americana Crotch, 1873
Hippodamia arctica (Schneider, 1792)
Hippodamia convergens Guérin-Méneville, 1842
Hippodamia lunatomaculata Motschulsky, 1845
Hippodamia oregonensis Crotch, 1873
Hippodamia quindecimmaculata Mulsant, 1850
Identification
Elongated, oval shape.
Femur visible beyond lateral margin of elytron (that is, part of the upper leg can be seen from above, not concealed under the body).
Color usually red, sometimes yellow or brown, with black markings.
Pronotum black with white markings on outer margin, sometimes with converging white lines.
Cleft tarsal claws are unique to the genus, but can only be seen under magnification.
Habitat
Anywhere with aphids. Usually outdoors, but may enter buildings in cold weather.
Print References
Gordon, 1985, especially pp. 706-752.
(2)
Acorn, 2007, especially pp. 111-125.
(3)