PERIPATUS, MYRIAPODS, AND INSECTS. 



185 



if exposed to a drying air, they speedily succumb. Occasionally, 

 specimens may be seen at large ; Grassi considers them to be 

 merely explorers. Owing to the extent of the colonies, it is diffi- 

 cult to estimate with accuracy the number of individuals compos- 



Fig. 15. — Some of the forms of Termes lucifugus. 



I, Young larva ; 2, Adult worker ; 3, Soldier ; 4, Young complementary 

 Queen ; 5, Older substitute Queen ; 6, Perfect winged Insect. (After Grassi.) 



ing a community, but it is doubtless a great many thousands. 

 Grassi finds the economy of this species in Italy to be different 

 trom anything that has been recorded as occurring in other 



