Eurydema oleracea

Eurydema oleracea
	Eurydema oleracea, yellow markings
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hemiptera
Suborder:	Heteroptera
Family:	Pentatomidae
Genus:	Eurydema
Species:	E. oleracea
Binomial name
	Eurydema oleracea; (Linnaeus, 1758)
Synonyms
	Eurydema oleracea Linnaeus, 1758; Eurydema lineola lineola (Barensprung, 1859); Eurydema nevadensis lineola (Lindberg, 1932); Eurydema consobrina (Puton, 1871);

Last updated November 20, 2023

Eurydema oleracea is a species of shield bug in the family Pentatomidae and is commonly known as the rape bug, the crucifer shield bug, the cabbage bug or the brassica bug.^[1]

Morphology and biology

The rape bug has a shiny, flat dark-colored body about 5–7 millimetres (0.20–0.28 in) long and 4 millimetres (0.16 in) wide. The species has a dark ground colour which is overlain with red, yellow, cream, white or orange markings. There is an oval spot on the top of the mesonotum and one on each of the elytra as well as a longitudinal stripe on the prothorax. In young adults these spots are yellow but change to white or red in older bugs. The colour of the abdomen changes at the same time from buff to black. Such age-specific changes in the imago coloration, are connected with sexual maturation of the bugs and often take place in diapausing imagos at the time they are becoming active again.^[4]

video

The eggs are cylindrical, buff-colored with a dark pattern. They are laid on the stems and inflorescences of host plants in batches usually of about twelve eggs in two neat rows. Each female lays sixty to eighty eggs over a period of four to six weeks. The nymph is pale gray with a dark-brown pronotum and spots on the dorsal side of the abdomen. It moults five times, and the adults and nymphs live quite openly on plants. Adults overwinter, hibernating in leaf debris at the edge of woods or in bushes.^[5]

Distribution

This species has a wide distribution in the eastern Palearctic realm. It is found in Western Europe except for northern Scandinavia, Kazakhstan, most of Russia, the mountainous regions of west and central Asia, and in North Africa.^[5]

Ecology

These species overwinters as an adult, emerging in late spring. There is one generation in the northern part of their range and two in the south. The adults and nymphs are consumers of a wide range of cruciferous plants (Brassicaceae), feeding mainly on the flowering parts. Among cultivated crops the bugs damage cabbage, radish, turnip, rutabaga, horseradish and rape. They can also develop on many species of wild cruciferous plants. Natural enemies include a number of species of parasitoid wasps in the family Scelionidae, some species of predatory bugs in the family Nabidae, a rare parasitic fly Clytiomya continua ,^[1] some spiders and ants. They can be controlled by crop rotation, the destruction of cruciferous weeds and the use of insecticides.^[5]

Gallery

Gluvia dorsalis eating a Eurydema oleracea
Mating pair
Nymph
Adult

Related Research Articles

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Spanioneura fonscolombii, is a species of plant-parasitic psyllid in the family Psyllidae which feed on box. It was first described by Arnold Förster in 1848 and is found in Europe. It is also found in the United States of America where it was accidentally introduced.

References

1 2 Brickfield's Park
↑ Parker, Peter (2018). A Little Book of Latin for Gardeners. Little Brown Book Group. p. 328. ISBN 978-1-4087-0615-2. oleraceus, holeraceus = relating to vegetables or kitchen garden
↑ Whitney, William Dwight (1899). The Century Dictionary and Cyclopedia. Century Co. p. 2856. L.holeraceus, prop.oleraceus, herb-like, holus, prop.olus (oler-), herbs, vegetables
↑ Mikhailov V.K. 1949. Sub-imaginal phase of wing stage and the secondary atypical pigmentation of cuticle in Cabbage bug, Eurydema oleraceum L. In: Reports of Acad. Sci. USSR. V. 64 (6): 877-880 (in Russian).
1 2 3 AgroAtlas

External links

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[BP-1] 1 2 Brickfield's Park

[2] Parker, Peter (2018). A Little Book of Latin for Gardeners. Little Brown Book Group. p. 328. ISBN 978-1-4087-0615-2. oleraceus, holeraceus = relating to vegetables or kitchen garden

[3] Whitney, William Dwight (1899). The Century Dictionary and Cyclopedia. Century Co. p. 2856. L.holeraceus, prop.oleraceus, herb-like, holus, prop.olus (oler-), herbs, vegetables

[4] Mikhailov V.K. 1949. Sub-imaginal phase of wing stage and the secondary atypical pigmentation of cuticle in Cabbage bug, Eurydema oleraceum L. In: Reports of Acad. Sci. USSR. V. 64 (6): 877-880 (in Russian).

[AG-5] 1 2 3 AgroAtlas

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