...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 parasites of butterfly eggs are legion...
Clarence M. Weed 「Butterflies Worth Knowing」
...Another group of caterpillar parasites is still more minute...
Clarence M. Weed 「Butterflies Worth Knowing」
...This, again, is probably due to the position of the parasites and to the pressure they exert on the reproductive organs of the body in the larval state...
Edward Saunders 「Wild Bees, Wasps and Ants」
...Besides these lodgers there are numerous parasites of the ants, such as mites, etc...
Edward Saunders 「Wild Bees, Wasps and Ants」
..." If theenclosure is too small, fleas, seed ticks, and other parasites are agreat enemy to the animals...
A. R. Harding 「Fur Farming」
...Theseshreds are sometimes mistaken for parasites or for portions of the wall of theintestine...
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」
...These parasites are flat, leaf-like worms; one ofthem, the common liver fluke (Fasciola hepatica, fig...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
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