Attewell, P. 1993. Ants: notes and observations for 1992. Transactions of the Hertfordshire Natural History Society 31:326.

Attewell, P. 1994. Report for ants, 1993. Transactions of the Hertfordshire Natural History Society 32:20.

Attewell, P. 1995. Report for ants, 1994. Transactions of the Hertfordshire Natural History Society 32:211-212.

Attewell, P. 1996. Report for ants, 1995. Transactions of the Hertfordshire Natural History Society 32:429.

Attewell, P. 1998. Report for ants, 1997. Transactions of the Hertfordshire Natural History Society 33:216-218.

Attewell, P. 1999. Report for ants, 1998. Transactions of the Hertfordshire Natural History Society 33:416-419.