Nematinus steini larva · pjūklelis, lerva ^Thumbnails»Nematinus steini larva · pjūklelis, lerva^Thumbnails»Nematinus steini larva · pjūklelis, lerva^Thumbnails»Nematinus steini larva · pjūklelis, lerva

Nematinus steini larva · pjūklelis, lerva

  • Stein's Alder-cutter

https://www.sawflies.org.uk/nematinus-steini/ Females: 6 to 8.5 mm. Males: 5 to 6.5 mm. In the female, the sawsheath is broad, parallel sided and slightly indented at the apex. The thorax may be flecked with black, as may be the post-scutellum, the mesosternum and the basal tergite. The subcostal, marginal and anal veins are dark basally becoming yellow towards the apical half of the wing. In the male, yellow are the costa, clypeus, tegula, edge of pronotum and the mesopleura. An almost entirely orange-yellow species. Larvae feed on alders and pupate in the ground.

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