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Corn bug

Eurygaster integriceps
Eurygaster integriceps Puton.jpg
Eurygaster integriceps
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Family: Scutelleridae
Subfamily: Eurygastrinae
Genus: Eurygaster
Species: E. integriceps
Binomial name
Eurygaster integriceps
Puton, 1881

Eurygaster integriceps is a species of shield bug in the family Scutelleridae, commonly known as the sunn pest or corn bug. It is native to much of northern Africa, the Balkans and western and central Asia. It is a major pest of cereal crops especially wheat, barley and oats.

The colour of the sunn pest varies but it is usually light brown. The body is a broad oval about 12 millimetres (0.5 in) long. The scutellum is wide and chitinous and covers the wings and the whole abdomen. The insect lives for about a month during which time the females lay twenty eight to forty two eggs. These are laid in batches each having two neat rows of seven eggs, on the underside of leaves and on the stems of the host plant, or sometimes on weeds. The eggs take six to twenty eight days to hatch and the nymphs moult five times while they feed on the leaves, stems and ears of cereal crops for the next twenty to forty five days. They grow fastest at an air temperature of 20–24 °C (68–75 °F). The second and third instars have a pale abdomen and dark head and thorax. The fourth instar has the rudiments of fore wings and the fifth instar, the rudiments of hind wings as well.

The sunn pest is found in Northern Africa, Albania, Greece, Bulgaria and Romania. In Asia it occurs in Turkey, Syria, Lebanon, Iran, Iraq, Afghanistan and Pakistan and the republics of Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan. In Russia it has spread into the central and Volga Basin regions, the Northern Caucasus, the Chelyabinsk region and Bashkortostan.


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Wikipedia

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