80 Studies on Life-history of Bomhycine Moths. 



of the prothoracic segment, and the sides, low down, of the 2d and 

 3d thoracic segments. Most of the hairs, especially along the back, 

 are not quite so long as the body is thick ; some are very long, as 

 described in the yellow variety, and the lateral ones are less evenly 

 cut and longer than the dorsal verticils. A few black hairs are 

 mixed with the reddish ones along the sides. The tubercles are 

 not foxy-red like the hairs. The thoracic legs are pale amber, 

 while the abdominal ones are black, with pale planta). 



The two last larval stages of Seirarctia echo (Abbot and Smith). 



The following descriptions have been drawn up from specimens 

 from Punta Gorda, Fla., collected in March, 1891. and presented 

 by Mrs. Slosson. They will feed on almost any kind of leaves. As 

 my descriptions in Psyche (V, 351) were drawn up from colored 

 figures, the following notes may take the place of my descriptions 

 of the two last stages. 



Larva, stage V? — Length 12 mm. The head is fully as wide as 

 the body, ochre-yellow, concolorous with the setiferous tubercles, 

 which are large, high, and prominent, bearing bristles as long, 

 some longer than the body; they are black-brown, becoming ochre- 

 ous at the base, while in front and at the end of the bodv there are 

 a number of gray bristles. On each abdominal segment the two 

 median dorsal small tubercles are crowded in front of the two much 

 larger lateral ones. The segments are transversely banded with 

 two parallel rows of cream-white irregular linear slashes, three in 

 each row, varying somewhat in shape and in distance apart. The 

 prothoracic segment is ochreous-yellow like the head. The body is 

 dark black-brown, contrasting with the reddish-ochreous tubercles. 

 (This does not entirely agree with Mr. Bridgham's figure of the 

 5th stage, as the head is all ochreous.) 



Full-fed larva. — Length 30 mm. Head cherry-red all over; 

 anterior division of the clypeus and the antenna) whitish. Tuber- 

 cles reddish-ochreous ; the hairs mostly reddish-ochreous at base 

 and black on the outer half.* Body dark Vandyke-brown. Protho- 

 racic segment like the head, but of a duller hue 2d thoracic seg- 

 ment with a pale cream-white spot in the middle, and a transver.'^e 

 whitish slash on each side, while behind is a faint cream-white 

 broken transverse line; on the 3d thoracic segment are two trans- 

 verse cream-white lines, and between them, but nearer the hinder 



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