Robinia sawfly
| Robinia sawfly | ||||||||||||
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Robinia sawfly ( Nematus tibialis ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Nematus tibialis | ||||||||||||
| Newman , 1837 |
The Robinia sawfly ( Nematus tibialis ) is a plant wasp from the family of the true sawfly (Tenthredinidae). In English, the species bears the name locust sawfly based on its host plant .
features
The sawfly reach a length of 6–7 mm. The basic color is yellow. The eyes, antennae, and posterior tibia and tarsi are blue-black. There is a blue-black spot on the back of the head between the eyes. There are three blue-black spots on the pronotum. The upper side of the abdomen has blue-black horizontal stripes. The wings have a dark vein. The wing mark is yellow.
The green larvae have a yellow-orange-colored head and a black pattern of spots.
distribution
The species originates from North America. It was probably introduced to Europe in the 17th century or later with the importation of black locust and is widespread there.
Way of life
The plant wasps are often found on common robinia ( Robinia pseudoaciaca ), in English black locust , and on bristle robin ( Robinia hispida ). The larvae prefer to feed on the leaves of these locust species.
Individual evidence
- ↑ a b c d Species Nematus tibialis - Locust Sawfly . bugguide.net. Retrieved September 7, 2017.
