Page:Harvesting ants and trap-door spiders. Notes and observations on their habits and dwellings (IA harvestingantstr00mogg).pdf/187

 live with the female during the months of September and October. The females may usually be found in their nests during the daytime (always in Europe?).

Large spiders should be killed, or at least stupefied with chloroform, before being put into spirit of wine. It is convenient to place the specimens in glass test-tubes closed with corks, and filled with pure spirit of wine, as they may then be examined through the glass.

When specimens of more than one species are placed in the same tube or bottle, it is well to distinguish each by a number written in pencil on a small strip of card fastened round the body with a slip-noose of thread.

The patterns on the abdomen and cephalo-thorax of the spiders are seen very distinctly when the spiders are immersed in spirits of wine, and these frequently afford characters which aid in determining the species.

M. Thorell, in the introduction to his work On European Spiders, gives a detailed account of a method by which specimens may be prepared for mounting in cabinets, by drying them within a glass tube held over a flame, but it would appear that, for purposes of study, specimens preserved in spirit of wine are far preferable.

It is very desirable to obtain characteristic portions of, or if possible entire nests, but where the tubes are long, this is extremely difficult to do satisfactorily.

Some nests, preserved in the British Museum, have been coated with thin glue, and this appears to be of some use in binding the parts together. I find that by stuffing the tube full of cotton-wool, before attempting to remove the earth, the nest may sometimes be obtained in tolerably good condition.