264 



INSECTS AT HOME. 



of the upper wiiigs are peculiarly large and bold. All the 

 Perlidse have the second pair of wings, very large, and capable of 

 being folded. The body is rather flattened, and equally wide 

 throughout its length. The tarsi have three joints. 



These insects are aquatic in their habits. During their 

 larval and pupal stages they live in the water, and after they 



XKSl 



1. Perla inarpinata. 2. Limnephilus bicolor. 3. Phrygaaea minor. 4. Leptocertis 



ofbraceiis. a. Limnephilus, labium. b. Limnephilus, maxilla. c. Labium of ditto, 



female. rf. Labium, male. c. Anal appendages or clasper, male. 



have attained their perfect condition, they love to remain near 

 the water in which they were reared, and seldom travel to any 

 distance from the familiar banks. The mother insect imitates 

 in one respect the female Cockroach, for she carries the eggs 

 about with her, attached to the end of the abdomen, for some 

 time before they are laid. They are not, however, enclosed in 

 a hard case or pouch, like those of the Cockroach, but are 

 merely united together in a small black globular bundle, 



