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The cause was found to be hormones found in the native balsam fir tree (Abies balsamea) used to manufacture paper and related products in America, and in some other North American conifers. This hormone happened to have a profound effect on P. apterus, but not on other insect species, showing the diversification of hormone receptors in the ...
The scale insect Dactylopius coccus produces the brilliant red-coloured carminic acid to deter predators. Up to 100,000 scale insects need to be collected and processed to make a kilogram (2.2 lbs) of cochineal dye. [89] A similar number of lac bugs are needed to make a kilogram of shellac, a brush-on colourant and wood finish. [90]
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Here’s what appeared on the state inspection. Home & Garden. Lighter Side
Most insects create lift by the stiff-winged mechanism of insect flight with steady state aerodynamics; this creates a leading edge vortex continuously as the wing moves. The feathery wings of thrips, however, generate lift by clap and fling, a mechanism discovered by the Danish zoologist Torkel Weis-Fogh in 1973. In the clap part of the cycle ...
Potter wasp (Eumeninae), an idiobiont, building mud nest; she will then provision it with paralysed insects, on which she lays her eggs; she then seals the nest and provides no further care for her young. On or inside the host the parasitoid egg hatches into a larva or two or more larvae (polyembryony). Endoparasitoid eggs can absorb fluids ...