Entomological gems

Whilst not of the peatlands per se, the images show three species recently observed in the northern aspect of the Humberhead Levels.

The wonderfully iridescent Necklace Ground Beetle Carabus monilis  shown below is an aberrant specimen, compare the elytral markings on the two images (click on the images to enlarge).

 

130611 Carabus monilis tbc WF

 

The second image of the same species illustrates perfectly the metallic hue of the species as well as the indicative rows of granules seperated by three regular and equal-sized ridges on the elytra.

 

monilis8

 

The beetle is a UK BAP Priority Species which JNCC consider to have declined due to the widespread use of pesticides, the shift from spring to autumn cultivation and habitat fragmentation may all have contributed to the species decline.

 

The much studied Chrysolina graminis or Tansy Beetle (below) aka the ‘Jewel of York’, featured here on the ubiquitous nettle is a delightful species whose ecology is not particularly well understood. It’s ecological requirements have yet to be fully understood in order to secure its future. It retains a precarious foothold along the Ouse floodplain where there are stands of Tansy alongside the riverbank and in old unimproved grasslands. Fortunately it is the subject of a long term and on going study and it can breed well in captivity.

 

130611 Chrysolina graminis WF hrk 400

 

This aptly named Rhinocerus Beetle Sinadendron cylindricus was found in deadwood.

 

130611 Sinodendron cylindricus WF 406

 

Images Martin Hammond & Helen Kirk.

Advertisements

Tags: , , , , ,


%d bloggers like this: