150 



Rowland M. Shelley 



Fig. 27-32. Semionellus placidus. 27, 3rd sternum of male from Mid- 

 land County, Michigan, caudal view. 28, gonopods in situ, ventral view 

 of male from Tucker County, West Virginia. 29, gonocoxae and ster- 

 num of male from Midland County, Michigan, caudal view. 30, left 

 gonopod of the same, medial view. 31, the same, lateral view. 32, 

 left cyphopod of female from Pepin County, Wisconsin, caudal view. 

 Abbreviations as in Fig. 2-8. Scale line for Fig. 28 = 1.00 mm; line 

 for other Fig. = 1.40 mm for 27, 3.50 mm for 29-31, 1.00 mm for 

 32. 



