DBRC Hemiptera species records 1969 to 2015

Quality Control

The data should not be regarded as having comprehensive geographic or taxonomic coverage. Systematic Countywide surveys have not taken place and levels of expertise to find and identify more difficult taxa have varied. All records upto the end of 2011 have been checked by Derbyshire and Nottinghamshire Entomological Society as part of a validation process. This has resulted in the correction of obvious input errors (after reference to the primary data source) and highlighted where records required additional information in order to have a high confidence in their accuracy (for example, species where voucher specimens are needed for accurate identification). Since 2011 records have been checked internally at DBRC and some records have been passed to the National Heteroptera Recording Scheme for inclusion within their datasets. A few more interesting species such as Salda morio and Acompus rufipes have been validated by experts. However, it is probably wise to be cautious about any especially rare or diffiult taxa recorded since 2011 and to request further information from DBRC on these records. Any records with a low level of confidence remaining after validation procedures have been excluded. Given the validation procedures and cautionary approach which has been adopted it is considered that there is a reasonable level of confidence in the accuracy of the dataset but the above comments regarding the precision of the records should be borne in mind when using this dataset. The dataset has been checked using the NBN Record Cleaner.

Method steps

1. The records forming the dataset have been collated from observations made by staff at Derbyshire Willdife Trust and the former Derby Biological Records Centre as well as local naturalists together with some casual sightings sent in by members of DWT and the general public. Many records have been collected using sweep nets, beating trays, pond nets and to a lesser extent light traps as well as direct observation.

Derbyshire and its immediate fringes.