Bionomics of Hippodamia Trideceum-Punctata L.

In working with the Coccinellids, one will soon find that the larvræ of the different species are very hard to separate by a superficial examination. There is one species, however, to which this statement will not apply, this being the common 13-spotted Lady-bird beetle, Hippodamia 13-punctata. Due to its distinct coloring considerable interest in the species was aroused, and a brief review of the literature dealing with it was undertaken. This showed that while the species was mentioned frequently, and had been used as a subject in morphological studies, very little was known in regard to its life history.