. British journal of entomology and natural history. Natural history; Entomology. BR. J. ENT. NAT. HIST . 10: 1997 65 ORTHOCHAETES SETIGER (BECK) (COLEOPTERA: CURCULIONIDAE) LEAF-MINING ALLIUM URSINUM IN SOUTHERN SCOTLAND K. P. Bland National Museums of Scotland, Chambers Street, Edinburgh EHl IJF AND J. M. Nelson 70 Hainburn Park, Edinburgh EH 10 7HJ Ramsons or Allium ursinum L. is a plant that is avoided by most animals, both large and small (Tutin, 1957). Thus, the discovery of an occupied leaf-mine in A. ursimim. by the Water of Leith (OS. Grid ref NT1867), Midlothian (VC 83) on 26 June 19
. British journal of entomology and natural history. Natural history; Entomology. BR. J. ENT. NAT. HIST . 10: 1997 65 ORTHOCHAETES SETIGER (BECK) (COLEOPTERA: CURCULIONIDAE) LEAF-MINING ALLIUM URSINUM IN SOUTHERN SCOTLAND K. P. Bland National Museums of Scotland, Chambers Street, Edinburgh EHl IJF AND J. M. Nelson 70 Hainburn Park, Edinburgh EH 10 7HJ Ramsons or Allium ursinum L. is a plant that is avoided by most animals, both large and small (Tutin, 1957). Thus, the discovery of an occupied leaf-mine in A. ursimim. by the Water of Leith (OS. Grid ref NT1867), Midlothian (VC 83) on 26 June 1996 is worth recording. Initially, the mine was a small blotch occupying only the extreme apex of the leaf. Subsequently, the beetle larva mined down the midrib of the leaf for about 3 cm before mining out into the lamina of the leaf where a complex series of short forays occurred (see Fig. 1). The larva left the leaf-mine on 1 July 1996 and burrowed down into the sandy substrate for pupation. In due course an adult of Orthochaetes setiger (Beck, 1817) emerged on 8 July 1996. The specimen was kindly identified by Mr Magnus Sinclair. O. setiger is listed by Hyman & Parsons (1992) as nationally scarce (Nb), but some regard it as a common weevil. There are several previous records from southern Scotland (Crowson, 1971); in fact its first Scottish record was from Dalmeny Park, Midlothian in 1841 (Greville, 1841). The hfe-history of O. setiger in Britain is unclear. Joy (1932) states that the genus Orthochaetes is associated with the roots of plants, an association echoed by Cooter & Cribb (1975) who specify "at roots of Rumex acetoselld' for O. setiger but who in addition note an association with Senecio spp. (part of plant not specified). Surprisingly Bullock (1992) makes no mention of the species. Consultation of the European hterature tells quite a different story. O. setiger is recorded by Hering (1957) as forming leaf-mines in some 19 genera of plants. Sixteen. Fig
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