Yes, indeed they have: they remember, they recognize the maternal abode, they come back to it, they restore it, they colonize it anew.
Among many other instances, let us quote that of the Zebra Halictus.
She will show us a splendid example of love for one's birthplace translating itself into deeds.
The Halictus' spring family acquire the adult form in a couple of months or so; they leave the cells about the end of June. What goes on inside these neophytes as they cross the threshold of the burrow for the first time? Something, apparently, that may be compared with our own impressions of childhood. An exact and indelible image is stamped on their virgin memories. Despite the years, I still see the stone whence came the resonant notes of the little Toads, the parapet of currant-bushes, the notary's garden of Eden. These trifles make the best part of my life. The Halictus sees in the same way the blade of grass whereon she rested in her first flight, the bit of gravel which her claw touched in her first climb to the top of the shaft.
She knows her native abode by heart just as I know my village. The locality has become familiar to her in one glad, sunny morning.
She flies off, seeks refreshment on the flowers near at hand and visits the fields where the coming harvests will be gathered. The distance does not lead her astray, so faithful are her impressions of her first trip; she finds the encampment of her tribe; among the burrows of the village, so numerous and so closely resembling one another, she knows her own. It is the house where she was born, the beloved house with its unforgettable memories.
But, on returning home, the Halictus is not the only mistress of the house. The dwelling dug by the solitary Bee in early spring remains, when summer comes, the joint inheritance of the members of the family. There are ten cells, or thereabouts, underground. Now from these cells there have issued none but females. This is the rule among the three species of Halicti that concern us now and probably also among many others, if not all. They have two generations in each year. The spring one consists of females only; the summer one comprises both males and females, in almost equal numbers. We shall return to this curious subject in our next chapter.
The household, therefore, if not reduced by accidents, above all if not starved by the usurping Gnat, would consist of half-a-score of sisters, none but sisters, all equally industrious and all capable of procreating without a nuptial partner. On the other hand, the maternal dwelling is no hovel; far from it: the entrance-gallery, the principal room of the house, will serve quite well, after a few odds and ends of refuse have been swept away. This will be so much gained in time, ever precious to the Bee. The cells at the bottom, the clay cabins, are also nearly intact. To make use of them, it will be enough for the Halictus to polish up the stucco with her tongue.
Well, which of the survivors, all equally entitled to the succession, will inherit the house? There are six of them, seven, or more, according to the chances of mortality. To whose share will the maternal dwelling fall?
There is no quarrel between the interested parties. The mansion is recognized as common property without dispute. The sisters come and go peacefully through the same door, attend to their business, pass and let the others pass. Down at the bottom of the pit, each has her little demesne, her group of cells dug at the cost of fresh toil, when the old ones, now insufficient in number, are occupied. In these recesses, which are private estates, each mother works by herself, jealous of her property and of her privacy. Every elsewhere, traffic is free to all.
The exits and entrances in the working fortress provide a spectacle of the highest interest. A harvester arrives from the fields, the feather-brushes of her legs powdered with pollen. If the door be open, the Bee at once dives underground. To tarry on the threshold would mean waste of time; and the business is urgent. Sometimes, several appear upon the scene at almost the same moment. The passage is too narrow for two, especially when they have to avoid any untimely contact that would make the floury burden fall to the floor.
The nearest to the opening enters quickly. The others, drawn up on the threshold in order of their arrival, respectful of one another's rights, await their turn. As soon as the first disappears, the second follows after her and is herself swiftly followed by the third and then the others, one by one.
Sometimes, again, there is a meeting between a Bee about to come out and a Bee about to go in. Then the latter draws back a little and makes way for the former. The politeness is reciprocal. I see some who, when on the point of emerging from the pit, go down again and leave the passage free for the one who has just arrived. Thanks to this mutual spirit of accommodation, the business of the house proceeds without impediment.
Let us keep our eyes open. There is something better than the well-preserved order of the entrances. When an Halictus appears, returning from her round of the flowers, we see a sort of trap-door, which closed the house, suddenly fall and give a free passage. As soon as the new arrival has entered, the trap rises back into its place, almost level with the ground, and closes the entrance anew. The same thing happens when the insects go out. At a request from within, the trap descends, the door opens and the Bee flies away. The outlet is closed forthwith.
