FoKAl A.\D 



267 



The connection between the ventral portion of each of 

 these segments with the lateral portion is not a suture, 

 but is made by a membrane. This membrane can be 

 most readily seen in the living insect during respiration. 

 The lateral and dorsal portions of these eight segments 

 show no dividing suture. 



Caudal Portion of Abdomen of Male. - The ninth and 

 tenth dorsal segments are united on their lateral mar- 

 gins ; the eleventh segment is flattened and furrowed 

 by three deep longitudinal grooves. 



FIG. 204. Side view of 

 male. 7, K, 9, 10, 11, seg- 

 ments ; c, cerci. Enlarged 

 about three times. 



FIG. 205. Dorsal view of 

 caudal appendages of male. 

 6, 7, H, 9, 10, 11, segments ; 

 c, cerci. Enlarged about 

 three times. 



On each side, projecting candad from beneath the 

 lateral margins of the tenth tergum and curved upward, 

 are the two appendages called the cerci. In this species 

 they are slightly forked. 



Immediately beneath or within these cerci can be seen 



. 



two narrow plates, more readily distinguished at their 

 caudal extremity. These are the podical plalcx. 



This last of the ventral segments consists of a h 1- 



shaped piece, rounding up over the caudal end of the 

 body into a blunt point. 



Make a drawing of the dorsal and lateral views of 

 the abdomen of the male, naming the parts. 



