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two side two way but one aim
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| [Note Guidelines] Photographer's Note |
The pentatomids are known as Stink Bugs or Shield Bugs. They are frequently found in large numbers on crops and weeds. If disturbed, they will emit a pungent, evil-smelling liquid.
Stink bugs are distinguished from other bugs by their 3rd thorax, or the triangular scutellum, which is well extended to cover half of their back, but not covered the whole abdomen. Their legs are thin and with no spines. The antennae are four or five segmented. Their body are usually in shield-shaped. Nymphs look similar to their adults except they are wingless.
The 'stink' evil-smelling liquid comes from the bug's scent glands. In adults the scent gland openings are located under each side of thorax, between the first and second pair of legs. In nymphs the scent gland openings are paired and located on the top of abdomen. Those stink liquid will discourage or even harm the potential predators.
Stink bugs mating occurs in spring and/or summer, depending on the species. Eggs are laid in tight clusters glued to a host plant, usually on the underside of leaves. After hatching, the first instars often stay together with the empty egg-shell until they moult become the second instars. Then they disperse in search of food. Nymphs undergo five metamorphoses to become adults.
Most of the Stink Bug species are plant suckers although some are predators to other insects. Some species in this family exhibit maternal care by standing guard over their egg batches.
All Stink Bugs are active during the day. Shield Bugs have a number of natural enemies, some species their eggs suffer parasites by wasps. |
gannu, vanderschelden, meyerd has marked this note useful
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| Discussions |
| Thread | Thread Starter |
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Updated |
| To meyerd: hi meyerd | ridvan |
1 |
04-20 16:10 |
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- Nilson
![Gold Star Critiquer/Gold Note Writer [C: 442 W: 0 N: 427]](http://i1.treknature.com/misc/g-n-g.gif)
(3110) - [2007-04-01 12:12]
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Essa eu já vi mais não consegui focar o inseto ,uma bela foto também,muito boa está de parabéns por esta composição.
Nilson
Hi Ridvan,
I like the vivid colours and the sharp bugs.
TFS
Annick
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- meyerd
![Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 519 W: 68 N: 1688]](http://i1.treknature.com/misc/g-g-g.gif)
(5336) - [2007-04-20 2:46]
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Dear Ridvan,
I like this macro with the two partners trying to go in opposite directions!
I don't know the Turkish insect fauna and it's good you provide examples of it. The picture does not present Pyrrhocoris apterus of the family Pyrrhocoridae, but clearly a species of Pentatomidae. In my book, Eurydema ventrale qualifies. Eurydema is 8-12 mm long, of Mediterranean distribution, occurs in humid places.This species is rarely represented in TN! I hope you manage to confirm my proposition.
With my best wishes to you Ridvan,
Dietrich
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- lutya
![Silver Star Critiquer/Gold Note Writer [C: 18 W: 0 N: 92]](http://i1.treknature.com/misc/s-n-g.gif)
(447) - [2007-04-23 17:06]
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mükemmel..
