...Daws and starlings search the backs ofcattle and sheep for ticks and other parasites, andit is plain that their visits are welcome... 
W. H. Hudson 「Birds and Man」
...For the most part these insect parasites are small four-wingedflies, although many of them are two-winged flies...
Clarence M. Weed 「Butterflies Worth Knowing」
...The life-histories of the parasites that attack caterpillarsvary greatly...
Clarence M. Weed 「Butterflies Worth Knowing」
...A special group of Ichneumon flies, called the Microgasters,contains many parasites that have this peculiarity...
Clarence M. Weed 「Butterflies Worth Knowing」
...After hatching from the egg, the Mourning-cloak caterpillarsare also subject to the attacks of various parasites...
Clarence M. Weed 「Butterflies Worth Knowing」
...I have specimens myself with four parasites in them, and a case of five has been recorded...
Edward Saunders 「Wild Bees, Wasps and Ants」
...It may also arise from the presence of parasites orgallstones in the ducts, forming a mechanical obstruction to the onward flow ofbile...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...The animal parasites of cattle comprise more than a hundred differentspecies, belonging to various groups of the animal kingdom...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...The firststomach, or paunch, contains large numbers of minute parasites known asprotozoa, which are too small to be seen with the naked eye...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...To a slight degree salt serves to protect cattleagainst infection with internal parasites, and plenty of it should therefore bekept accessible...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...A number of species of protozoa have been reported as parasites of theintestines of cattle...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
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