CLASS V. INSECTA. 263 
Inhabits Europe : is rare in Britain, but has been taken near Dartford 
in Kent, and at Windsor. 
Genus 401. TRICHIOSOMA. Leach, Zool. Misc. vol. iii. 
Body hairy : abdomen with the first articulation (especially in the male) 
but slightly emarginatcd, the. four posterior thighs dentated (in the 
male thick). 
Sp. 1, Tri. sylvaticum. Black, and slightly shining: abdomen of a dull 
yellow or brownish, the base and apex black : femora blucish-black: 
tibiae and tarsi yellowish : wings with the apex brownish. 
Inhabits woods near London, but is rare. 
Genus 402. CLAVELLARTA. Lamarck, Leach. 
Body hairy or but slightly hairy : abdomen with the first articulation 
scarcely marginated : femora of the four posterior legs without denta- 
tions (of the male thickened). 
Sp. l. Cta. marginata. Black; apex of the antenna?, tibia?, and tarsi 
yellow : abdomen with the margins of the posterior segments white. 
Tenthredo marginata. Linn., Pang. Cimbex marginata of authors. 
I nhabits woods in Europe : and has once occurred at Windsor. 
Genus 403. ZAE/EA. Leach. 
Eyes of the male joining at the posterior part. 
Sp. 1. Zar.fasciata. Black; tibia? and tarsi yellow, the superior wings 
with a brownish baud (abdomen of the female with the base white). 
Tenthredo iasciata. Linnt, Pang. Cimbex fasciala of authors. 
Inhabits woods: is rare in Britain. 
Genus 404. ABIA. Leach. 
Abdomen of the male with an elongated, silky spot on the posterior 
part : eyes of the male nearly joining. 
Sp. 1. Abia nigricomis. Antenna? black : wings from the middle to the 
apex with light brown spots : feet light red; thighs black and shin- 
ing. 
Tenthredo nitons (female). Linn. Cimbex sericea, var. lubr. Abia 
nigricomis. Leach. 
Inhabits woods. 
Sp. 2. Abia sericea. 
Tenthredo sericea. Linnt , 
Inhabits woods and furze on heaths. 
Genus 405. AMASIS. leach. 
Body without spots: abdomen with the first articulation undivided. 
Sp. 1. Am. lata. Back of the abdomen pale yellow, the first segment 
wholly black: wings at the base blackish. 
Tenthredo la?ta. Fabr., Pang. Cimbex beta of authors. Amasis la?ta. 
Leach. 
Inhabits England and Germany. It has once occurred near Bristol. 
