White-belted rose wasp

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White-belted rose wasp
2018 09 05 Allantus cinctus.jpg

White-belted rose wasp ( Allantus cinctus )

Systematics
Order : Hymenoptera (Hymenoptera)
Family : Sawfly (Tenthredinidae)
Subfamily : Allantinae
Genre : Allantus
Subgenus : Emphytus
Type : White-belted rose wasp
Scientific name
Allantus cinctus
( Linnaeus , 1758)
Dorsal view
larva
Damage to roses

The white-belted rose wasp ( Allantus cinctus , syn .: Emphytus cinctus ) is a plant wasp from the family of the real sawfly (Tenthredinidae).

features

The sawfly reach a length of 6.4–6.7 mm (males) and 8.0–8.5 mm (females). They have a black head and thorax . The abdomen is also black. The female has a broad pale white band on the fifth abdomen segment. The femora are black. Tibia and tarsi are reddish. The basal end of the tibia is colored white. The transparent wings are darkly veined . The pterostigma is cream-colored in the basal third, otherwise black.

In the last stage, the larvae reach a length of 13–21 mm. They are greenish-gray on the top, and lighter on the underside. In the transverse direction, numerous rows of white thorns run across the larvae's abdomen. The head is orange.

distribution

The species comes from the Palearctic (Eurasia) and was probably introduced in North America. Their distribution area extends there on the east coast from Newfoundland to Virginia, in the midwest from Ontario to Illinois and on the west coast from British Columbia to Washington . The species is widespread in Europe.

Way of life

The species forms two generations per year. It overwinters as a larva. The larvae pupate in spring . The adult plant wasps can be observed from May, the second generation from July. The larvae mainly feed on the leaves of roses. You can also find them on raspberries and strawberries. The early larval stages skeletonize the leaves, while the older larvae eat the leaves from the edge towards the veins.

Individual evidence

  1. ↑ a b c d e Species Allantus cinctus - Curled Rose Sawfly . bugguide.net. Retrieved June 4, 2018.
  2. ↑ a b c d e ARBOFUX - diagnostic database for woody plants: White-belted rose wasp . Weihenstephan-Triesdorf University of Applied Sciences, Center for Research and Further Education. Retrieved June 4, 2018.
  3. ↑ Allantus (Emphytus) cinctus in Fauna Europaea. Retrieved June 4, 2018

Web links

Commons : White-belted rose wasp ( Allantus cinctus )  - Collection of images, videos and audio files