or potentially self-destructive behaviour performed for the benefit of others.Īmbrosia. The fungus cultivated by wood-boring beetles of the family ScolytidaeĪmetabola. The insects which develop without metamorphosis, namely the Protura, Thysanura, and Collembola.Īmide. Compound derived from carboxylic acids by replacing the hydroxyl of the -COOH by the amino group, -NH 2-.Īmine. An organic compound containing nitrogen, derived from ammonia, NH 3, by replacing one or more hydrogen atoms by as many hydrocarbon radicals.Īmino acid. Organic compounds that contain the amino (NH,) group and the carboxyl (COOH) group.
Nodus feature list series#
A synthetic insecticide a chlorinated hydrocarbon of not less than 95 per cent 1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-hexahydro-1,4:5,8-dimethanonaphthalene moderately toxic to mammals, acute oral LD, for rats 44 mg/kg phytotoxicity: none when properly formulated, but some crops are sensitive to solvents in certain formulations.Īliphatic. A term applied to the “open chain” or fatty series of hydrocarbons.Īlkaloids. Substances found in plants, many having powerful pharmacologic action, and characterized by content of nitrogen and the property of combining with acids to form 壮alts’.Īlloparental. When individuals other than the parent assist in the caring for that parents offspring.Īltruistic. Self-destructive. it is too hot or too dry.Īge Polyethism. The regular changing of roles of colony members as they get older.Īlar Squama. The middle of three flap-like outgrowths at the base of the wing in various flies.Īlitrunk. Name given to the thorax and propodeum of ‘wasp-waisted’ hymenopterans.Īllopatric. Two or more forms of a species having essentially separate distributions.Īlternating Generations. When two generations are produced within a life cycle each producing individuals of only one sex, either male first and then female or visa-versa.Īlula. In insects (not birds) the outermost of the three flap-like outgrowths at the base of the wing in various flies: really a part of the wing membrane.Īldrin. (common name).
Its shape is often important in separating closely related species.Īdecticous. Of pupa: referring to the state in which the pupa does not posses movable mandibles, the opposite being Decticous.Īestivation. Summer dormancy, entered into when conditions are unfavourable for active life i.e. Abdomen. The hindmost of the three main body divisions of an insect.Īcaricide. A chemical employed to kill and control mites and ticks.Īcetyl choline. A substance present in many parts of the body of animals and important to the function of nerves.Īcrostichal Bristles. The two rows of hairs or bristles lying one on either side of the mid-line of the thorax of a true fly.Īctive Space. The space within which the concentration of a pheromone or other behaviourally active substance is concentrated enough to generate the required response, remembering that like light and sound pheromones become more dilute the further they radiate out from their source.Īculeate. (Hymenoptera) Those members of the Hymenoptera which possess a sting.Īdeagus. The part of the male genitalia which is inserted into the female during copulation and which carries the sperm into the female.