CHAPTER VI 

 LITHOBIUS 



A STUDY OF LIGHT-SHUNNERS 



Man is a diurnal animal, loving the sunlight. The animals 

 that we know best are those that are active in the daytime 

 since we ourselves are most active at that time. But many 



Fig. 94. — A colony of liRht-shunnprs under an upturned stone. From above 

 downward in the figure, an eartliwomi, a sliort-winged beetle, a .Julu.s, an 

 ant with pupce, and a carabid beetle. 



classes of animals are entirely nocturnal. This is true because 

 their organization is such that a strong light is disagreeable 

 to them. They shun a strong intensity of light, and so in the 

 daytime are found hidden under stones (Fig. 94) or the bark 



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