. The museum of natural history, with introductory essay on the natural history of the primeval world : being a popular account of the structure, habits, and classification of the various departments of the animal kingdom, quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture . 1, Oi^strus trompe: 2, the Iar\a ; 3, the pupa. The Zimb, described by Bruce the African traveller,is one of the most formidable and destructive speciesknown ; this fly attacks its victim on all parts of thebody, producing large bosses and ulcers, which in theend putr
. The museum of natural history, with introductory essay on the natural history of the primeval world : being a popular account of the structure, habits, and classification of the various departments of the animal kingdom, quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture . 1, Oi^strus trompe: 2, the Iar\a ; 3, the pupa. The Zimb, described by Bruce the African traveller,is one of the most formidable and destructive speciesknown ; this fly attacks its victim on all parts of thebody, producing large bosses and ulcers, which in theend putrefy, and thereby inevitably cause the deathof all animals which it attacks. Another equally destructive species of fly was dis- Tse-tse (Glossina morsitnns.) covered by the celebrated African explorer, Dr. Living-ston ; this is the Tse-tse described scientifically by as Giossena/norsftons. (Fig. 174.) This pest 2 M 274 -Piivtai.:mia. appears fortunately to be confined to particular districts,and is usually fouiiil on hills, plains being free from it;it is not much larger than the common house-fly, butlonger and of a blacker colour, with bars on its attack of ten or a dozen is said to cause the deathof a horse; to oxen its attack is equally fatal. TheTse-tse also at times attacks man; but no danger fol-lows—in fact, no more than from the bite of a and all wild animals appear to escape with impu-nity ; but the losses experienced through its attack ondomestic animals are quite appalling. Dr. Livingston describes the Tse-tse as remarkablyalert; it avoids dexterously all attempts to capture itwith the hand at mid-day. In the cool of the morningand evening it is
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