42 



BULLETIN 351^ U. S. DEPAETMENT OF AGEICULTUEE. 



reddisli-bro"Svii gromid color. The rent between the two parts re- 

 mains mipigmented and shows m mature specimens as the charac- 

 teristic dorsal stripe. (PI. I, fig. 5, &, p. 8, and text fig. 15, d.) 



Up to and including the eighth day the general aspect is strictly 

 larval, except for the slight arching of the dorsum and for the dorsal 



■ c/z 



Fig. 15. — Diagrammatic representation of the color and markings of the female terrapin scale: o, Larva, 

 seventh day upon the twig; 6, larva, eleventh day upon the twig; c, larva, fifteenth day upon the 

 twig; d, larva, twentieth day upon the twig and after; db, dorsal band; adh, anterior segment of dorsal 

 band; pdb, posterior segment of dorsal band; f-pz, first pigment zone; spz, second pigment zone; ads, 

 adult dorsal stripe; uz, unpigmented zone. (Original.) 



band. At the ninth day the female is about equally adult and larval 

 in appearance. At this time the pale yellow body color of the larva 

 begins to turn to a reddish amber and the characteristic crimps at the 

 margin of the derm (fig. 15, h) begin to appear. In the depressions 

 formed by the crimping, a brownish pigment develops and marks 



