PLATE VIII. 



From Drawings by H. F. Wickham. 

 Fig. II. BY Miss Mary P. McBride. 



Fig. 7. Patella of T/iennonecies ornalicollis var. viirrofasciatus Aiibe. 



Fig. 8. Patella of Acilius fasciatus De Geer, with small palettes removed 



Fig. 9 Middle tarsus of Dyfiscus /larn'sii Kirby, with small palettes removed. 



Fig. 10. Anterior tarsus of Colymbetes scidptilis Harr. 



Fig. II. Large palette of Dytiscns margivalis Linn. 



