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Keyword: Underside | | Seite 3 von 7 1 2 3 4 5 6 7 | | | | The females lay their eggs in spring, on the underside of the leaves of the food plants of their larvae, on birch or elm, for example. The eggs are deposited in groups of 30 - 50. The females care for their brood by sitting on the eggs and fasting in order to stay and defend them against potential attac... | | |
| | Gonocerus insidiator reach body lengths of 10 - 15 mm. Their body shape is similar to that of Pentatomidae species, but they are not so broad. The upper surface of the body is reddish brown and the underside is yellowish-green. The head has strong, long antennae with 4 segments and greenish eyes. The head and antennae are also reddish brown. The pronotum is broad and bears remarkably sharp spikes. The scutellum is smaller than in Pentatomidae species. T... | | |
| | The larvae of rose leafhoppers are cream coloured. Rose leafhoppers and their larvae pierce the leaf tissue and suck plant juices from the underside of rose petals. The rose plants initially show a fine, white and yellow mottling on the leaves. Rose leafhoppers usually start sucking along the leaf veins and later spread out onto the whole leaf. After a while the leaves of infected plants are den...
...nfected plants are densely dotted with numerous pale stains and they then wither and fall off. Similar damage is caused by spider mites. For spider mite infestation, the evidence is the lack of Rose leafhopper and their missing larvae on the leaves’ undersides. | | |
| | ... stinging-sucking mouthparts (a sting, a proboscis). Their antennae are relatively long and have one or more segments. The proboscis (rostrum) starts below the back of the head (in the hip region of the first pair of legs) and hangs backwards on the underside of the chest (thorax). | | |
| | ...eye" patch with a white core near the wing tips. On the bright seam of the wings runs a thin margin. Near the “eyes” are more patches of yellow. which run parallel to the outer edge of the wings. The outer edges of the forewings are convex. The underside of the forewings is a brownish colour and is mottled black, yellow and white. There is one white "eye" patch near the wing tips. | | |
| | ... red to brown. A distinctive characteristic is the oily sheen, which originates from their bodies and earns them their name with regards to the latin name. While females are generally reddish brown in colour, the males are rather darker brown. The underside of the body is pale brown. The entire body and limbs are covered in fine light hair, the thickness of which can only really be seen under a microscope. | | |
| | .... The basic colours of the upper side are white , yellow , green or reddish-brown. . At the upper section of the opisthosoma is the characteristic leaf-shaped marking (folium) , which varies in colour (often in highly-contrasting red tones). The underside is yellow to brown in colour, with one dark and two bright stripes in the middle.
The legs of the autumn spider are yellow to light brown in colour and have indistinct dark spots and rings. The midfoot (metatarsal) of the first leg pair is (on... | | |
| | Water scavenger beetles reach body lengths of 4-9 mm. Their bodies are oval-shaped, with a very flat underside. They have a slightly metallic sheen, are deep black in colour and shimmer slightly bronze when seen in light.
Adults have short, club-shaped antennae. Their mouthparts (maxillary palpi) are elongated, yellowish to reddish-brown in colour an... | | |
| | Mating occurs from April on. Egg laying takes place a few days later, on the food plants of the larvae. More than a hundred eggs ( in separate groups of 20 or more) may be stored on the underside of leaves. After about one week the larvae hatch. The rear body of the larvae is beige or tan in colour. . Their heads, chests and three atrophied pairs of legs, are dark brown to black. They mature rapidly and in the last larval stage (about two ... | | |
| | ...rvae, like the adult beetles, feed on the leaves of the grey or speckled alder (Alnus incana), hornbeam (Carpinus), birch (Betula) and hazel (Corylus). They feed, initally in groups and later alone, by scraping the surface off the leaves from the underside, leaving only the veins, unlike the adults. eats the leaves from the lower surface by scraping them off. The development of the larvae is complete in 3 weeks (June/July). They pupate in oval spaces in the earth just beneath the surface of the... | | |
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