Distribution data © Roger Gaunt. Maps © Guy Meredith. Records to 2011 (RG), 2009 (BRERC).
Page last revised March 2012.
The species list applet was compiled using a very old version of Java (1.4). If it does not work and you get a warning message, try using this version compiled with Java 1.6.
BC Gloucestershire Branch Home Page
See also the Gloucestershire Moth Distribution Maps
If you have moth records which are not shown on these lists, please send them to Roger Gaunt. A few copies of Roger's 2006 publication "Gloucestershire Moths - A Second Account" are still available from him. This mentions many unmappable records (mostly old ones), including those for the many species with blank maps. Roger can be contacted by email at roger.gaunt@btinternet.com
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You can use this page to see lists of species which have been recorded in specified tetrads at any time of year, or lists of species which have been recorded anywhere in the recording area at particular times of year. It does not provide time-of-year lists for individual tetrads. Type a tetrad in the small box and press the [Enter] key, or click on one of the 36 time of year buttons. The appropriate species list appears in the scrollable text area below the buttons. For time of year the species are listed in decreasing order of number of records from the period if that checkbox is selected. (N.B. For some regularly-recorded sites Roger's database might only include one record of each common species from each year, usually the record with the highest specimen count). The "List all species" button gives the full list of species reported from anywhere in the recording area at any time of year. The "List species with no records since" button lists those species with database records from the period up to and including the selected year but not since then, together with species reported at any time but without enough information to be included in the database. The comment in brackets may indicate a more recent unmapped report. The "List species recorded in" button lists those species recorded in the selected year for which we have no mappable records during the period between that year and the earlier selected year. This includes those species with no earlier records in our area, and also those reported at any time but without enough information to be included in the database. The comment in brackets may indicate a more recent unmapped report. |
Species are listed in comma-separated field format: Bradley checklist number, Scientific name, Common name (if any), UK status (if selected), and typical UK larval food (if selected). For the two types of list relating to specified years, the relevant previous recorded year is given for species with records in the database and comments are given for other species reported from the area in the past. Absence of either year or comment indicates a new species for our area.
UK national status data listed here may not be completely accurate, and for some macro-moth species it is known to be out of date: some have become more widespread and others have become much scarcer since species were assigned to the various categories. The status of micro-moths was updated in January 2012 in a report downloadable from Butterfly Conservation's website. The abbreviations used here are explained in the table below. If selected, the scarce species only option includes the categories from RDB1 to BAP.
| RDB1 | Red Data Book category 1: Endangered species with a single population in one 10Km OS grid square in the UK, or in rapid decline and found in at most 5 10Km squares |
| RDB2 | Red Data Book category 2: Vulnerable species found in at most 10 10Km squares |
| RDB3 | Red Data Book category 3: Rare species found in 11 - 15 10Km squares |
| pRDBn | Provisionally RDBn, yet to be ratified |
| RDBK | Thought to be RDB status, but insufficient knowledge |
| Na | Notable a: Scarce species found in 16 - 30 10Km squares |
| Nb | Notable b: Scarce species found in 31 - 100 10Km squares |
| BAP | Biodiversity Action Plan priority species for action. BAP status is independent of any RDB/Na/Nb rating |
| BAP(R) | Biodiversity Action Plan declining species for which research is needed |
| Local | Species found in 101 - 300 10Km squares |
| Common | Species found in more than 300 10Km squares |
| Migrant | Occurs as a result of immigration; may have colonised in the UK |
| Adventive | Occurs as a result of accidental or deliberate import; may have colonised |
The recording area is the counties of Gloucestershire and South Gloucestershire, together with those parts of Watsonian vice-counties VC33 (East Glos.) and VC34 (West Glos.) which are outside the present administrative counties.
Complete accuracy of the data can not be guaranteed - with more than 170,000 records some errors and omissions are inevitable. Records supplied to the Gloucestershire (VC33 & VC34) moth recorder Roger Gaunt have been shown, together with VC34 records supplied to the Bristol Regional Environmental Records Centre. Some unconfirmed records and those with insufficient information for mapping purposes have been omitted. For tetrads on the area boundary, some records might have come from just outside the intended recording area. For pairs or groups of species not separable with certainty from wing markings, only those records identified to species are used in the lists but some of these could be erroneous. Species forms originally given separate Bradley numbers are listed as the main species.
This page contains a Java applet which your browser's security settings might prevent from running automatically, prompting you for permission to run it. You might first also need to install the appropriate Java plug-in for your browser, if this is not already on your system. The applet downloads into its own memory a file of moth names and distribution data from the website, then constructs and displays the species list for each tetrad or time of year that you select without any further interaction with the website (so that lists can be displayed very quickly).
Distribution data © Roger Gaunt. Maps © Guy Meredith. Records to 2011 (RG), 2009 (BRERC).
Page last revised March 2012.