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DESCRIPTION OF THE PREPARATORY STAGES 

 OF DATANA ANGUSII G. and R. 



BY WM. BEUTENMULLER. 



Egg. — Ovoid, white, with the base slightly flattened; laid in 

 small masses of about thirty, on the underside of leaf. 



Young Larva. — Head and cervical shield jet-black, shining. 

 Bodv greenish brown, with the second and third segments claret- 

 red above and below. This color is also present on the dorsal 

 region of the sixth, seventh, eighth and eleventh segments. The 

 four stripes along each side of the body are pale lemon-yellow, ex- 

 cept where they are obscured by the claret-red color. The stripes 

 on the underside of the body are also pale lemon-yellow. All the 

 stripes are equidistant, and as broad as the intervening spaces. 

 Thoracic feet jet-black; abdominal legs same color as the body; 

 anal clasps jet-black, shining. Length 3 mm. Duration of this 

 stage about six or seven days. 



After First Moult. — The ground color in this stage is now 

 somewhat darker, as is also the claret-red color of the segments as 

 described in the young larva. Length 6 mm. Duration of this 

 stage six days. 



After Second Moult. — The body in this stage is of a pur- 

 plish brownish color, with the stripes somewhat narrower than the 

 intervening spaces. The claret-red color is now quite faint and suf- 

 fused with the ground color. Body beneath same as above, with 

 the abdominal legs concolorous with a black corneous patch on the 

 outerside of each. Length 9 mm. Duration of this stage eight 

 days. 



After Third Moult. — The stripes are now considerably nar- 

 rower than the intervening spaces, and the body somewhat deeper 

 in color, the cervical shield blackish, and abdominal legs pinkish. 

 Length 16 mm. Duration of this stage nine days.- 



After Fourth, the Last Moult. — Head and cervical shield 

 jet-black, shining. Body black, with the four now pale yellow- 

 stripes along each side very narrow, all being much narrower than 

 the intervening space. The three stripes on the underside are also 

 now pale yellow; the one along the middle is the broadest., and the 

 one on each side being broken by the legs; the intervening spaces 

 much wider than those above. Thoracic feet jet-black; abdominal 

 legs reddish, with the extremities black. On the fourth, fifth, tenth 

 and eleventh segments are two reddish patches. Body with sparsely 

 distributed, sordid white hairs, which are also present in all the pre- 



