Misc. Pub.f344—U. S.’ Department of Agriculture 
-PLATE7 
Spiracular-body margin areas: A, Parlateria banksiae, showing anterior spiracle 
with disk pores, anterior spiracular cluster of duct tubercles, eye spot (dark 
spot at extreme left beyond tubercles), and posterior spiracle and spiracular 
derm pocket (an irregular dark spot midway between spiracle and inner end of 
group of tubular ducts). B, P. blanchardi, showing anterior spiracles with disk 
pores, large and conspicuous eye spot, posterior spiracle and absence of derm 
| pocket near posterior spiracle, and of duct tubercles. C, P. camelliae, showing 
| anterior spiracles with disk pores, prespiracular, anterior spiracular, and inter- 
| mediate duct tubercle clusters, posterior spiracle, and derm pocket (an irregu- 
jar dark spot below posterior spiracle and towards margin). D, P. cinerea, 
showing anterior spiracle with disk pores, prespiracular, anterior spiracular, and 
intermediate tubular duck clusters, posterior spiracle, and absence of associated 
| derm pocket. All from same specimens listed in explanations of plates 1 and 2. 
x 245. 
