548 Explanation of the Plates. 



Fig. 21. Stage IV.; after third moult (Figs. 32 and 

 33 belong here). Length, 4 centim. 



Fig. 22. Stage V. ; after fourth moult. A feeble 

 indication of an eye-spot can be seen on the third 

 segment besides those on the fourth and fifth. Ocelli 

 absent on segments 6 IO. 



Fig. 23. Stage VI. ; after fifth moult. The subdorsal 

 line is feebly present on segments 6 10, and very 

 distinctly on segments 11 and I 3. Ocelli repeated as 

 irregular black spots above and below the subdorsal line 

 on segments 6 1 1 ; a small light spot near the posterior 

 border of segments 5 10 (dorsal spots) and higher than 

 the subdorsal line. Larva adult. 



Figs. 24 28. Development of the markings of Charo- 

 campa Porcellus. 



Fig. 24. Stage I. ; immediately after emergence from 

 the egg. Length, 3.5 millim. 



Fig. 25. Stage II. ; after first moult. Length, 10 

 millim. 



Fig. 26. Stage III. ; after second moult. Length, 

 2.6 centim. 



Fig. 27. Eye-spots at this last stage ; subdorsal much 

 faded, especially on segment 4. Position the same as in 

 last Fig. ; magnified. 



Fig. 28. Stage IV. ; after third moult ; corresponds 

 exactly with Stage VI. of C. Elpcnor. Dorsal view, with 

 front segments partly retracted (attitude of alarm). 

 Ocelli on segment 5 less developed than in Elpcnor; 

 repetitions of ocelli as diffused black spots on all the 

 following segments to the I ith ; two light spots on each 

 segment from the 5th to the I ith, exactly as in Elpenor ; 

 subdorsal line visible only on segments I 3. Length, 

 4.3 centim. 



Fig. 29. Chcerocampa Syriaca. From a blown specimen 

 in Lederer's collection, now in the possession of Dr. 

 Staudinger. Length, 5.3 centim. 



