A short while later a whole herd of cattle came running by. Even the scrawniest cows – those you would hardly think could walk – were running like deer in a field. The poor man gets horns here.5 With their tails curled up they ran, ran, ran until they came at last to a pool where they came to a stop, seeming to have found safe sanctuary from the enemy. I hurried over to see who it was that was driving them harder than either the whip or Death himself could have done. There I saw the same thing as I had observed farther south ie. ‘Oestrus’ [Warble-fly]. Our natural historians confuse ‘Oestrus’ with ‘Tabanus’ [Horsefly] though they are as different as hares and bears. The horsefly, species ‘Tabanus’ and a particularly troublesome fly, harasses the cattle a good deal, but the warble-fly frightens them as if it were the devil himself. The warble-fly does not settle on the animal’s body but between the larger and smaller hooves on the foot, for this insect seldom or never flies more than 1 1/2 to 2 feet above the ground and usually at only about 4 inches. The cattle run until they are able to get their feet into water or a bog and then they are safe from injury from the fly. The insect is an Ichneumon fly and looks like a ‘Crabro’ [wasp]. It is yellowish and has a spike that sticks right out at its tail-end.