HOW TO KNOW THE INSEQS 



Figure 153, 



Fig. 153. GerrlG remlgls Say- 

 Above bro;vn to reddish brown; reddish 

 brovm on sides. First joint of antennae 

 nearly as long as next three Joints com- 

 bined. Mo median carina or pronotum. 

 Length 14-16 mm. 



The legs of the V/ater-strlders are 

 long and slender, for they are used to 

 skate about on the surface film of quiet 

 water. They are frequently found In 

 large groups. Iv'any species have two 

 forms, winged and wingless, with some- 

 times a third short-winged form. They 

 live on other insects that fall Into the 

 water. 



9b Tarsal claws arising from end of tarsus 10 



10a Ocelli present 11 



10b No ocelli; much flattened and thin for living under barl(. 

 (The Fl?t Bugs). Fig. 154. Family 5, ARADIDAE 



Fig. 154. Aradus acutus Say 



Blackish brown; a row of -jhltlsh spots on 

 each side of exposed disk of abdomen and on 

 elytra. Head longer than wide and longer 

 than pronotum. Found under bark of logs. 

 Length 7-10 mm. 



The Flat bugs are well named. They live 

 under bark and some of them have been reduced 

 almost to the thinness of paper. The general 

 color is black or dark brov/n. Some species 

 bear small markings of red or of white. 



Figure 154. 



11a Body and appendages very slender; antennae longer than body, 



Its fourth segment short and thickened. (The 

 Stilt Bugs). Fig. 155, Family 6, NEIDIDAE 



Fig. 155. Jalysus spinosus (Say) 



Dull reddish or yellowish brown. First 

 joint of antennae longer than third, second 

 only twice the length of fourth. Scutellum 

 with spine inclined at angle of about 45 

 degrees. Length 7-9 mm. 



The Stilt Bugs are very slender Insects 

 with long v/eak legs and antennae. They are 

 fairly abundant and may be readily taken by 

 sweeping. The family is a small one. 



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