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The adult beetles of the family Coccinellidae are the well-known ladybird beetles or ladybugs. The larvae and adults of the subfamily Coccinellinae are considered beneficial because they feed on pest species, mainly aphids and scale insects. This study was undertaken to provide a means of recognizing the larvae of native coccinellids found in or around the potato fields of Aroostook County. For our purposes, it is desirable to be able to identify the insect quickly and without killing it. Thus, the larval color pattern was chosen as a possible means of identification.
Maine Agricultural Experiment Station
Storch, R.H. 1970. Field recognition of the larvae of native Coccinellidae common to the potato fields of Aroostook County. Maine Agricultural Experiment Station Technical Bulletin 43.