A Fellow of the Royal Entomological Society, Harold Edward Hammond, (1902 – 1963), was a keen Lepidopterist. Coupled with this affinity for butterflies and moths he was also interested in entomology generally and would take up a new order every couple of seasons, afterwards giving the carefully mounted specimens to some young aspiring student of the subject. Before his health failed a few years before his death, it was not unusual to find Hammond out in the snow on Boxing Day, splitting logs with an axe to find beetle larvae. Generous, almost to a fault, he was content with gaining new knowledge and found reward in encouraging a new generation of enthusiasts.

Hammond’s main focus was on the larvae of Lepidoptera and, as can be seen by the associated article, he became an expert in their preservation. Raising many larvae into a suitable size for mounting could be somewhat problematic, so his Birmingham garden became a cross between a sanctuary and a fattening pen for many caterpillars. This miniature farm was orderly and well maintained, where trees were pruned to the size of bushes for easy access and micro habitats were constructed to help manage conditions for more demanding food plants.

The skills that Hammond developed in preserving caterpillars were much in demand by fellow entomologists, and he would sometimes receive dozens of boxes of live larvae a week, all dutifully delivered by a postman oblivious to their wriggling contents. His fee for this service was a request that he could have a larva or two for his own collection. During his preparations he encountered many parasitic hymenopteran and dipteran larvae, so he became quite the expert on those also, co-authoring several papers in the Entomologist’s Gazette.

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