the Larva and Papa of the Genus Sahatinca. 453 



pupa. Such an archaic type is Sahatinca, a Lepidopteroii 

 whose Hfe-histoiy shows us that it may well have been 

 evolved long before the Flowering Plants came on the scene, 

 and has probably kept unchanged, through millions of years, 

 its diet of lowly liverwort. 



In concluding this paper, I desire to thank my wife for 

 the execution of the wash drawings in Plate XXXIV ; these 

 were done with the help of my own camera lucida drawings 

 of the larva. I also wish to thank Mr. Philpott for so 

 kindly sending his material to study and describe. To 

 him belongs the sole credit for the actual discovery of this 

 wonderful little larval type, and he is greatly to be con- 

 gratulated on the results of his long and patient searching 

 for it. 



Explanation of Plate XXXIV. 



Last larval instar of Sabatinca barbarica Phil p. 



Fig. a. — Dorsal view (x 27). 

 b. — Ventral view ( X 27). 

 c. — Lateral view ( X 27). 



