Coccinellidae

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Coccinellidae

[käk·sə′nel·ə‚dē]
(invertebrate zoology)
The ladybird beetles, a family of coleopteran insects in the superfamily Cucujoidea.

Coccinellidae

 

a family of beetles. The body is convex, rounded, or oval. The coloration consists of various combinations of red, yellow, white, and black, with mostly black spots on a light background, or, more rarely, the reverse. The body is usually 4 to 7 mm long. The beetles are easily noticed because of their bright “protective” coloration, which is the same in the larvae and pupae. When touched, they secrete drops of a caustic orange hemolymph from the knee joints. The beetles are inedible for the majority of insectivorous invertebrates. The beetles and larvae are predators and extremely voracious; they feed on aphids, scale insects, and other small insects. A few species are herbivorous. There are approximately 2,000 species. They are distributed in all the countries of the world; in the European part of the USSR there are about 80 species. The predatory species are useful, whereas several herbivorous species are harmful. For example, the melon ladybug (Epilachna chrysomelina) harms melon crops in the south of Russia, and the 28-spotted ladybug (E. vigintioctomaculata) damages potatoes in the Far East. Predatory ladybugs are used in combating scale insects. In Abkhazia, the imported Australian ladybug (Rodolia cardinalis) and Cryptolaemus mon-trouzieri suppressed the reproduction of the dangerous citrus crop pests, the fluted scale and the citrus mealybug, as well as the cushion scale. In the USSR local ladybugs are also used to combat aphids. Ladybugs are collected to be released where there are many aphids. The collection of ladybugs is facilitated by the fact that they often hibernate in large piles (under rocks and pulvinate shrubs, for example).

REFERENCES

Telenga, N. A. Biologicheskii metod bor’by s vrednymi nasekomymi (khishchnye koktsinellidy i ispol’zovanie ikh ν SSSR). Kiev, 1948.
Diadechko, N. P. Koktsinellidy Ukrainskoi SSR. Kiev, 1954.
Biologicheskaia bor’ba s vrednymi nasekomymi i sorniakami. Moscow, 1968. (Translated from English.)

N. N. PLAVIL’SHCHIKOV

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However, little is known about how the volatiles from the aromatic plants regulate the behavior of the spirea aphid and its lady beetle natural enemy; this is information that would be useful for biocontrol in apple production.
At the end of each exposure time, the lady beetles were frozen to death; the next day the legs and wings were removed (in the case of adults) to reduce the amount of residue after the insects underwent acetolysis, which was conducted in the same place where the floral buds also underwent acetolysis procedure, using the same method.
Common ladybugs tend to have fewer spots than Asian lady beetles.
org Lovely ladybirds Ladybirds, or lady beetles, are named after Our Lady, the Virgin Mary.
Predatory lady beetles (Coleoptera: Coccinellidae) are associated with biological control of various insect pests more than any other group of predators (Obrycki and Kring, 1998).
To get their offspring into food-rich patches among the scale insects, female lady beetles hide their eggs in out-of-the-way places -- including the underside of the flat-bodied scale insects.
Lastly, as a final benefit to the garden, the sunflower stalk itself lends a hand as a nursery for the next generation of lady beetles whose larvae form pupae that hold fast to it and emerge days later as new lady beetles ready to go to work for me and the garden.
Inset left to right, the beneficial insects identified included lady beetles, syrphid flies and their larvae (feeding on aphids).
The significant number of lady beetles in Ontario may have been the result of an abundance of aphids early last summer.
Ecologists long debated the relative importance of abiotic and biotic factors on the growth of importance of abiotic and biotic factors on the growth of populations, so students will learn about an important historical debate in ecology while learning in-depth information about the pea aphid, its host plant, and two predators of aphids (lacewing larvae [Neuroptera: Chrysopidae] and adult lady beetles [Coleoptera: Coccinellidae]).
Biological control has asserted itself as beneficial insects such as praying mantids, assassin bugs, green lacewings, lady beetles, ground beetles, and hover flies rule supreme.