The images on myrmecos.net were captured with the following equipment: 

Canon EOS 20D Digital SLR
Canon EOS D60 Digital SLR

lenses/accessories:
Canon MP-E 65mm 1-5X Macro Lens (shown here)
Canon EF 100mm f/2.8 USM Macro Lens
Canon MT-24EX Macro Twin Lite (shown here)

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Nikon Coolpix 995

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For those interested in how I take insect photographs:

Digital Macrophotography of Ants in the Field

(link from Notes from Underground)