PARASITES DURING THEIR WHOLE LITE. 



257 



larvae of the Ehipiptera are developed at the expense of 

 the larv» of the wasp, suck thek blood, swell, and their 

 skin remains adhering to the fourth segment. 



t'i£r. 78.— Black Stylops, female, showing Fig. 70.- Black Stylops, larva at its 

 the embryos in the abdomen. birth (from Blanchard). 



When the rhipipterous insect is six milhmetres in 

 length, it changes its skin the second time, and this 



