The BugsCEP package consists of two main files:
- BugsCEP which contains the forms, queries and code that make up the user interface
- Bugsdata which contains almost all of the data.
The latter is a relational database built in MS Access 2000, with about 43 tables which contain the data enumerated below.

The setup program will also install a number of support files if necessary, including those necessary to run an Access database on a PC wihtout the full software installed.

The vast majority of data has been input by Paul Buckland.

Species related

5790 Taxa 2601 Synonyms 500 Records of species association 1702 UK RDB rarity records 5107 Species attribute records(mainly size data

• 3146 References

Fossil record and other sample based

• 678 Sites
• 544 abundance datasets/countsheets
• 67294 Fossil record entries (which make up the 544 countsheets)
• 3339 Recorded datesof which: 509 radiometric; 2440 period; 390 calendar

Climate and Ecology

• 436 MCR thermal envelopes
• 22595 Ecology text excerpts
• 21929 Distribution text excerpts
• 8317 BugsEcoCode assignments
• 11152 Koch Ecology Code assignments
• 9707 UK Monthly activity records

Other

• 216 Identification keys (by Peter Skidmore)