DIPLOPODA (MILLIPEDES)

A.D. Barber

The Atlas of the Millipedes of Britain & Ireland (Lee, P. 2006) lists a total of 62 species of which 56 are recorded from “outdoor” locations in Britain and 35 have been reported from Cornwall or the Isles of Scilly. Since then a further one, possibly two, species have been found in South Wales and a second hothouse type from the Eden Project. It is quite possible that further species, new to the area, to Britain as a whole or indeed to science will be found. For instance, Anthogona britannica was described as a species new to science from South Devon as recently as 1993. Using relevant factors, seven millipedes were included in the UK Biodiversity Steering Group “long list” (Harding, 1998). Some of these, including the widespread and often common “false flat-back”, Nanogona polydesmoides were included on the basis of their international significance rather than scarcity or threat in Britain. Similarly Polydesmus coriaceus and Chordeuma proximum are relatively widespread. The only Cornish species of national importance on that list was Chordeuma sylvestre. Subsequently all these four were removed during the BAP process. There are several millipede species which are quite localised to the South West and which do occur in Cornwall. Identification of millipedes is by the Linnean Society synopsis of J.G. Blower (1985); P. Lee (2006) contains a number of colour photographs of species.

Chordeuma sylvestre

Leptoiulus belgicus

Leptoiulus kervillei

Enantiulus armatus

Haplopodoiulus spathifer