3960 x 2693 px | 33,5 x 22,8 cm | 13,2 x 9 inches | 300dpi
Data acquisizione:
6 luglio 2020
Altre informazioni:
Larva, grub, of the common name mottled shieldbug, only a few millimeters large, is a species of stink bugs in the family Pentatomidae. It is the only species of the genus Rhaphigaster. Mottled shieldbugs prefer warm deciduous forests, parks and gardens. These polyphagous bugs feed on plant juices of a wide range of broadleaved woody plants, such as hawthorn (Crataegus), plum (Prunus), hazel (Corylus), whitebeam (Sorbus) and elm (Ulmus), but they may also feed on various shrubs, on hedges (blackberry), and on creepers (ivy). In late spring, the female sticks around 40 eggs in lines or discs on different parts of plants. The young that hatch vary in colour and are flightless. Wing stumps are only recognisable after the third nymph stage. To protect against predators, young bugs have stink glands on their back in the case of adults, these are to be found on the underside of the thorax. If threatened, a strong-smelling secretion is released. Adults can be found all year. They are not good fliers their sluggish flight makes loud humming noises. Wikipedia This species displays diurnal, thermophilic activity. As with most Pentatomidae, it produces only one generation per year.[2] It likes to overwinter on walls covered with ivy. In its search for suitable winter quarters (splits and cracks) it often unwittingly finds its way into houses.
