Fig. 110.
TACHINA FLY.
From descriptions which I have received, I feel certain that there is a two-winged fly, probably of the genus Tachina ([Fig, 110]), that works on bees. I have never seen these, though I have repeatedly requested those who have, to send them to me. My friend, Mr. J. L. Davis, put some sick looking bees into a cage, and hatched the flies which he told me looked not unlike a small house fly. It is the habit of these flies, which belong to the same family as our house flies, which they much resemble, to lay their eggs on other insects. Their young, upon hatching, burrow into the insect that is being victimized, and grow by eating it. It would be difficult to cope with this evil, should it become of great magnitude. We may well hope that this habit of eating bees is an exceptional one with it.
SPIDERS.
These sometimes spread their nets so as to capture bees. If porticos—which are, I think, worse than a useless expense—are omitted, there will very seldom be any cause for complaints against the spiders, which on the whole are friends. As the bee-keeper who would permit spiders to worry his bees would not read books, I will discuss this subject no further.
ANTS.
These cluster about the hives in spring for warmth, and seldom, if ever, I think, do any harm. Should the apiarist feel nervous, he can very readily brush them away, or destroy them by use of any of the fly poisons which are kept in the markets. As these poisons are made attractive by adding sweets, we must be careful to preclude the bees from gaining access to them. As we should use them in spring, and as we then need to keep the quilt or honey-board close above the bees, and as the ants cluster above the brood chamber, it is not difficult to practice poisoning. One year I tried Paris green with perfect success.
WASPS.
I have never seen bees injured by wasps. In the South, as in Europe, we hear of such depredations. I have received wasps, sent by our southern brothers, which were caught destroying bees. The wasps are very predacious, and do immense benefit by capturing and eating our insect pests. I have seen wasps carry off "currant-worms" with a celerity that was most refreshing.