16.07.2019 Views

Book Fauna Palaestina 4 Year 2014 By Prof Dr Norman Ali Bassam Khalaf von Jaffa ISBN 978-9950-383-77-7

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

and modes of life. Many species are harmful to crops and stored<br />

products, including food, while others are beneficial to mankind<br />

through preying on agricultural pests or by recycling waste<br />

products. Due to the hardness of their bodies and their<br />

tremendous resistance, variety of shapes, range of size (from 1-160<br />

mm) and amazing colours, the beetles are a favourite group for<br />

many amateur entomologists and collectors (Boeliem, 2008). As a<br />

result of their habitat destruction, several species in Palestine have<br />

become extinct, such as some of the large water beetles; while<br />

others are endangered.<br />

The Coccinellidae are a family of small beetles, ranging from 1 to<br />

10 mm (0.04 to 0.4 inches). They are commonly yellow, orange, or<br />

scarlet with small black spots on their wing covers, with black<br />

legs, heads and antennae. Such colour patterns vary greatly,<br />

however; for example, a minority of species, such as Vibidia<br />

duodecimguttata, a twelve-spotted species, have whitish spots on a<br />

brown background. Coccinellids are found worldwide, with over<br />

5,000 species described (Wikipedia). About 70 species of ladybird<br />

beetles (Coccinellidae) are known in Palestine, and many of them<br />

help to regulate pest populations. Both in Palestine and abroad,<br />

some of the species are employed for biological control of pests.<br />

At the end of spring the beetles migrate to mountain tops, such as<br />

Mount Hermon (Jabal Al Shaykh) and Mount Meron (Jabal Al<br />

Jarmaq), where they mass together. At the beginning of the<br />

following spring they migrate back to the low-lying areas - a<br />

phenomenon that has not yet been fully studied (Boeliem, 2008).<br />

Coccinellidae are known colloquially as ladybirds (in Britain,<br />

Ireland and the Commonwealth), ladybugs (in North America)<br />

or lady cows, among other names. When they need to use a<br />

common name, entomologists widely prefer the names ladybird<br />

beetles or lady beetles as these insects are not true bugs<br />

(Wikipedia).<br />

48

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!