The vine scale, parthenolecanium corni, is a widespread plants pest. It damages the leaves and fruit of the plants it lives on due to the growth of a sooty mold on the honeydew produced by the bug. Length 0.2 inches (6 mm).
Common name: Scale insects (soft, wax, and tortoise scales)
Family : coccidae
Class/ subphylum: Insecta/ Hexapoda
Number of species: About 1,000 (84 U.S.)
Size:From about 0.04 in (1 mm) to 0.2 in (5 mm)
Key features: Males and females look completely different; males lack mouthparts and have just 1 front pair of transparent, membranous wings, the 2nd pair resembling the halteres of the flies; alternatively, males may be wingless but still recognizable as insects; females may not resemble normal insects; the rostrum is present, but antennae are tiny or nonexistent; normal division of the body into segments not clear; top of the body is covered by a plate resembling a fish scale, wings absent, legs reduced and often nonworking; a powdery or waxy coating may also be present on the body
Habits: Females most often found fixed in one place to any part of their host plant or plants, usually in quite large numbers
Breeding: Females cannot fly and are sought out by the ma life cycles are quite complicated species
Diet:Females are sap feeders, often on a single plant and produce honeydew as a by-product
Habitat: Grassland, forests, gardens, orchards, fields, and deserts
Distribution: Worldwide, but more species are found in tropical regions.
Scale insects Photos Gallery