Page:Supplement to harvesting ants and trap-door spiders (IA supplementtoharv00mogg).pdf/175

 more elevated caput, general dark colour, distinct angular bars on the abdomen, and almost contiguous lateral eyes, as well as the form of the nest, will readily distinguish it.

It is with great pleasure that I connect with this spider the name of my most kind friend and brother arachnologist, Monsieur Eugène Simon, to whom I am so greatly indebted for much information and numerous examples of rare spiders.

I must not conclude these descriptions without expressing my sense of obligation to Mr. Moggridge for so kindly allowing me to add them to the far more popular, and more interesting, portion of this volume, in which the habits of these spiders are recorded.

Descriptions of colour, form, and structure are but dry details, though very necessary for the determination of species; and in the present case it is very important as well as interesting to be able to conclude with some certainty that differences of type in the tubular nests of the spiders Mr. Moggridge has observed so closely and accurately, are joined to well-marked specific differences obtained from those other characters above mentioned, and which it has been my endeavour to detail as fully and faithfully as possible.