50 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 95 



Fig. 31. Two caterpillars in the second stage. X 12. 



Fig. 32. Three caterpillars in the second stage. X 2.5. 



Fig. 33. A caterpillar in the third stage. X 2.5. 



Fig. 34. Four caterpillars in the fourth stage. X 2.5. 



Fig. 35. Three caterpillars in the fifth (last) stage. X 2.5. 



Fig. 36. Head of full-grown caterpillar. X 2.5. 



Note. — The photographs of caterpillars are from specimens in alcohol that 

 have lost their markings ; but the uppermost last stage caterpillar shows the light 

 dorsolateral line fairly well. 



Plate 7 



(All figures natural size.) 



Fig. 2)7- Shelter of a third-stage caterpillar. 



Fig. 38. The same, in side view. 



Fig. 39. The same, in end view. 



Fig. 40. Diagram illustrating the construction of the shelter ; the portion of the 



leaf between the cuts is bent inward over the upper surface, the 



angles following the direction of the dotted lines to the arrow points ; 



in this case the vein of the leaf forms a sort of ridge pole for the 



shelter. 

 Fig. 41. Two first-stage shelters. 

 Fig. 42. The same leaf in edge view, showing the elevation of the shelters. 



Fig. 43 

 Fig. 44 

 Fig. 45 



Fig. 46. 

 Fig. 47 

 Fig. 48 

 Fig. 49. 

 Fig. 50. 

 Fig. 51 

 Fig. 52, 



Plate 8 



Caterpillar at birth. 



A circlet of crochet tips on the proleg of a full-grown caterpillar. 



A section of the band of crochets, viewed exteriorly ; the recurved tips 



are shown in black. 

 Crochets of the three series, in side view. 

 First thoracic segment of a full-grown caterpillar. 

 Head and first thoracic segment of a full-grown caterpillar, dorsal view. 

 Head capsule of a first-stage caterpillar, front view. 

 The same, rear view. 

 Jaw of a full-grown caterpillar. 

 Anal structures of a full-grown caterpillar. 



