22 



GENERAL ZOOLOGY 



mantids are deposited in a mass of foam-like matter, which 

 the female discharges from the tip of the abdomen. This ma- 

 terial soon hardens and forms a protecting case for the eggs. 



Fig. 12. Chinese mantid and egg mass, (x f ) 



The mantid shown with its egg case in Fig. 12 is a Chinese 

 species (Paratenode'ra sinen'sis), which has been introduced 

 in a number of places in the United States. The color is 

 brown and is to some extent protective. Since this incon- 

 spicuous coloration may render it easier for the insect to 



