There are thousands of virtually identical species of springtail and your chance of identifying them accurately is close to zero. Springtails turn up naturally from the potting compost used to make grindalworm/whiteworm cultures and I encourage them by keeping the cultures on the wet side. The are fed and harvested in exactly the same way as grindalworms - just blow them off the glass into some sort of collecting vessel. Like other soil arthropods, springtails are relatively rich in calcium.
I culture springtails in sealed plastic boxes (no ventilation) filled with washed barbeque charcoal ("lumpwood", not briquettes). Put a few centimetres of water in the bottom, add some springtails and feed with some sort of organic matter. Most people recommend using some sort of carbohydrate such as dried pasta, and I seem to have best results using ReadyBrek. To harvest the springtails, wash them off the charcoal by pouring water over it then strain through a fine net. Add some more water to the container, sprinkle with ReadyBrek and replace the lid tightly.
