Original: ISBN 0-8493-1925-0 K. W. Harde , A Field Guide in Colour to Beetles ISBN 0-7064-1937-5 Pages 7 -- 24 White , R.E. 1983 .
Simplified: ISBN 0-8493-1925-0 K. W. Harde , A Field Guide in Colour to Beetles ISBN 0-7064-1937-5 Pages 7-24 White , R.E. 1983 .