Tenthredo crassa

Tenthredo crassa is a sawfly species belonging to the family Tenthredinidae (common sawflies).^[1]

Tenthredo crassa
Dorsal view
Side view
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Suborder:	Symphyta
Family:	Tenthredinidae
Genus:	Tenthredo
Species:	T. crassa
Binomial name
Tenthredo crassa Scopoli, 1763
Synonyms
Tenthredo albicornis Fabricius, 1781

Distribution and habitat

This species can be found in most of Europe.^[2] These sawflies inhabit meadows, edges of forests, hills and mountainous areas, at an elevation up to 1,500 metres (4,900 ft) above sea level.^[3][4][5]

Description

Tenthredo crassa can reach a length of about 14–18 millimetres (0.55–0.71 in).^[4][6] These large sawflies have a black head, thorax and abdomen, with black femurs, yellowish tibiae and tarsi. Antennae are black, with white three final segments. The mandibles are whitish at the base. The wings are dark yellow along the outer edge, blackened at the apical third.^[4][3][5]

Biology

Adults can be found from May to August, feeding on inflorescence of Apiaceae. Larves are monophagic feeding on Angelica species.^[4][5]

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  Mating pair