Invertebrate survey at Gunpowder Park, the former Royal Ordnance Site in the Lee Valley Carabidae Stenolophus teutonus Notable/Nb, Essex Red Data species This small reddish ground beetle occurred in Area D. Stenolophus teutonus is a southern species, found only in southern England and south Wales, most recent records coming from Hampshire, Surrey and Sussex. It appears to be very rare in Essex. It inhabits damp, rather open ground near water, such as gravel pits and pond margins (Luff 1998), being found on bare ground at the edge of standing water and in grass tussocks and wet vehicle tracks. Cerambycidae Aromia moschata (Musk Beetle) Notable/Nb, Essex Red Data species This longhorn beetle (Plate 15) was found on Carrot flowers at the northern edge of Area D near Arca C. Nationally it was formerly more widespread, but is much declined with modern records widely distributed from southern England through to northern England, and also recorded from the Hebrides. It is a beetle of wetland and wet woodland, in particular fens and willow carr. The host trees are probably Sallow, White Willow and Osier, appearing to have a preference for healthy, younger or mature trees, rather than overmature ones. The presence of nectar sources such as Umbellifers may be important for the adults of this species (Hyman & Parsons 1992). The beetle is included as a saproxylic (dead wood) indicator species for use in evaluating wooded habitats for the conservation of dead-wood Coleoptera (Fowles, Alexander & Key 1999). It is assigned a rarity score of 8 out of a maximum of 32 for use in calculating Saproxylic Quality Indices. Chrysomelidae Longitarsus agilis Notable/Na, Essex Red Data species This weevil was collected in Area C. It is very local and only known in southern and south-eastern England. In Hyman & Parsons (1992) only known to be recently recorded from four vice counties. It may be new to Essex, since it is not included in Hammond (2000). It is phytophagous, associated with figwort Scrophularia. The species has been recorded from downland, heathland, hedgebanks, grass verges, open areas in woodland and lake margins. Chrysomelidae Longitarsus lycopi Notable/Nb, Essex Red Data species This weevil was found in Area D. It is widespread and very local in southern England with scattered records, and recently recorded as far north as Cambridgeshire (Hyman & Parsons 1992). It may be new to Essex, since it is not included in Hammond (2000). It is phytophagous, associated with Common Calamint Calamintha ascendens in grassland, Selfheal Prunella in open woodland and Gypsywort Lycopus europaeus in wetland habitats. The species has been recorded from calcareous grassland and occasionally, as here, in open woodland and wetland. Coccinellidae Adonia variegata (Adonis' Ladybird) Notable/Nb, Essex Red Data sp. This ladybird was recorded in Areas A, B, B2, C and D. It is scarce and restricted mainly to dry sandy places, in particular to heathlands and the coast. It is widespread with scattered records around southern Britain but is only frequent in the Thames area, in South Wales and in Staffordshire. The ladybird is a characteristic component of open dry warm habitats in the London region. Haliplidae Haliplus laminatus Notable/Nb, Essex Red Data species This crawling water beetle was found in Area D. Haliplus laminatus is a small brown beetle typically found in lowland areas in slow-moving parts of rivers and base-rich pools and canals with restricted vegetation. The adults feed on filamentous algae, worms (Oligochaeta) and non-biting midge (Chironomidae) larvae. Essex Naturalist (New Series) 21 (2004) 97