Plum curculio cover the wings; however, because of the middle humps they appear to have only two ridges. The plum curculio can be found in apple, nectarine, plum, cherry, peach, apricot, pear and quince. It may also survive on wild plum, hawthorn, and crabapple. It is found most commonly in areas east of the Rocky Mountains and in eastern Canada. The beetles are most active during the spring time when the weather is warm, damp, and cloudy. They are often seen in heavy leafed trees. Plum curculio beetles can cause irreparable damage to a fruit harvest. In badly damaged fruit, one can
Plum-headed parakeet the French name "Le perruche a teste bleu" and the Latin name "Psittaca cyanocephalos". Although Brisson coined Latin names, these do not conform to the binomial system and are not recognised by the International Commission on Zoological Nomenclature. When in 1766 the Swedish naturalist Carl Linnaeus updated his "Systema Naturae" for the twelfth edition he added 240 species that had been previously described by Brisson. One of these was the plum-headed parakeet. Linnaeus included a terse description, coined the binomial name "Psittacus cyanocephalus" and cited Brisson's work. The specific name "cyanocephalus/cyanocephala" combines the Ancient Greek words "kuanos" "dark-blue" and "-kephalos"