Damage based identification key for endophagous herbivores on Common Reed (Phragmites australis) |
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| Author:
Patrick Häfliger © |
CABI
Europe - Switzerland, Rue des Grillons 1, CH-2800 Delémont |
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| "The
Reed Wasp" Tetramesa phragmitis (Erdös) (Hym.: Eurytomidae) |
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Biology: Eggs are laid in June through the internode wall. Usually 5-20 larvae can be found feeding on the felt tissue inside an internode. Often only one up to 13 mm long larva is found, which is a parasitoid of the reed wasp (picture 14). After hibernation, larvae pupate and adults emerge in late spring through a gnawed hole. Description: Larvae up to 6 mm long, whitish (picture 16); adults dark (picture 72). Feeding pattern/damage: Larval feeding by the reed wasp does not cause any damage. Only the pith tissue inside an internode is grasped on a small area (max. 1 cm2) (picture 15). Distribution: Europe, North America (introduced) References: Häfliger et al., 2001 |
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