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American butterfly moths, family Hedylidae, total only 40 known species, all Neotropical

Amber is a polymerized form of tree resin that was produced by trees as a protection against disease agents and insect pests

Amazonian primitive ghost moths, family Neotheoridae, are defined on the basis of a single species from the Amazonian area of southern Brazil

Some insects undergo reproduction that involves alternation of sexual and asexual generations

The almond seed wasp is a serious pest of almonds, Prunus amygdalus Batch, in several countries of southeastern Europe and the Middle East, and also in Armenia, Azerbaijan, and Georgia

For thousands of years insects and plants have been locked in a battle for which survival is the ultimate prize

The Allegheny mound ant, Formica exsectoides Forel, is a common mound-building ant of the northeastern and central United States

The alimentary system (canal) is a system of tubular structures that takes in food at the mouth

Insects feed upon many different kinds of food, including paper, wood, plant phloem and xylem sap, plant leaves, roots and stems, animal tissues, hair, wool, and vertebrate blood

Alfalfa (lucerne), Medicago sativae, is one of the most important legumes used in agriculture

Alfalfa Leafcutting Bee, Megachile rotundata (Hymenoptera: Megachilidae)