There is some doubt as to the number of species of this genus, it is certain that the Apis Ligustica of Spinola, or Italian bee, the Apis fascial a of Latreille, or Egyptian bee, are only varieties of the Apis mellifica, which also includes the German or black bee. Mr. F. Smith, an able entomologist, considers Apis dorsata of India and the East Indies, Apis zonata of the same islands, Apis Indica of India and China, and Apis florea of India, Ceylon, China and Borneo, as distinct species. He thinks, also, that Apis Adansoni and Apis nigrocincta are distinct, but thinks they may be varieties of Apis Indica. Some regard Apis unicolor as a distinct species, but it is probably a variety of Apis dorsata. As Apis mellifica has not been found in India, and is a native of Europe, Western Asia and Africa, it seems quite probable that several of the above may turn out to be only varieties of Apis mellifica. If there are only color and size to distinguish them, and, indeed, one may add habits, then we may suspect, with good reason, the validity of the above arrangement. If there is structural difference, as Mr. Wallace says there is, in the male dorsata, then we may call them different species. The Italian certainly has a longer tongue than the German, yet that is not sufficient to separate them as species. Apis zonata and Apis unicolor, both of the East Indies are said to be very black. Apis dorsata is large, suspends its combs to the branches of trees--in rare cases our own bees have been known to do the same--is said to be cross, to have a very long tongue, to be larger than our common bee, and to make larger cells. Apis florea is small, only half as large as Apis mellifica, of different form, while the posterior tarsus of the male is lobed. It would be very interesting, and perhaps profitable, to import these various species, and see how marked is the difference between them and ours. Such work can be best accomplished through our National Association. Very likely, as we come to know these far-off bees as we know the German and Italian, we shall find that their amiability, size, habits of comb-building, and lengthened organs, are only peculiarities developed by climate and surrounding conditions, and shall sweep them all into the one species. Apis mellifica, to be regarded as we now regard the Italian and Egyptian, as only varieties. It seems strange that the genus Apis should not have been native to the American continent. Without doubt there were no bees of this genus here till introduced by the Caucasian race. It seems more strange, as we find that all the continents and islands of the Eastern hemisphere abound with representatives. It is one more illustration of the strange, inextricable puzzles connected with geographical distribution of animals. SPECIES OF OUR HONEY-BEES.