no. i. BOMBYCINE MOTHS OF NORTH AMERICA— PACKARD. 195 



them very conspicuous ; they are a little larger and higher than those on the abdomen, and bear 

 about twice as many bristles; eight in all, all of which are black, while on the yellow tipped 

 tubercles of the abdominal segments there are about five bristles, one of them minute; two of 

 the five are black, the others pale. The two lateral rows of tubercles are, as before, with pale 

 bristles. 



The median dorsal tubercle on the eighth uromere is not quite so dark as those on the second 

 and third thoracic segments, and some of the latter are scarcely darker than the other abdominal 

 ones. The spiracles are of the same pale color as before. The suranal plate still bears the two 

 terminal tubercles, as before. The thoracic legs are now darker than before. 



In this stage the larvae sometimes assume a sphinx-like attitude. 



Stage III: Molted June 1. (I am not sure that it was the same larva; one molted May 31. 

 Described three days after molting.) Length 13 and finally 15 mm. The head is either banded 

 as before, or all green, only the ocelli being black. The body is now thick, though differing 

 very slightly from the preceding stage. The four prothoracic, the two dorsal second and third 

 thoracic tubercles, and the single median dorsal tubercle on the eighth uromere are either deep 

 crimson red at the end, or much paler, and in the largest one yellowish, the tips of these tubercles 

 varying a good deal in color; these tubercles are now nearly twice as long and thick as those on 

 abdominal segments 1 to 7 and 9. The tubercles of the two lateral rows are of the same size 

 as before; those of the upper (supraspiracular) row are stUl green and small; those below, 

 situated on the lateral ridge, are salmon-colored and provided with black setae, like those arising 

 from the dorsal tubercles; near, and on the base of and between the tubercles, are white, delicate 

 clavate hairs (glandular?) which are not observable in the preceding stage; they are mostly 

 confined to the abdominal, few, only one or two, on the thoracic region. 



The thoracic legs are dark brown, pale at the tip; the abdominal legs except the anal pair, 

 are green, with a transverse lilac line near the ends; beyond yellowish, while the plantae are 

 tinged with lilac. There is as yet no lilac tinge on the edge of the suranal plate- 

 Stage TV: (Belonging to a later different brood; described July 24.) Length 23 mm. 

 The head now pea-green, not banded in front, nearly as wide as the body; well rounded, and of 

 the same shape as in T. polyphemus; it is of a deeper pea-green than the body, which is in general, 

 especially on the dorsal side, paler than in T. polyphemus. The labrum and jaws are pale. 

 There is a chestnut-colored ocellar patch. 



The segments are now quite convex, swollen under the base of the tubercles, the second and 

 third thoracic segments being fuller and more angular than the uromeres; they are a little more 

 so than in Telea polyphemus. 



The four dorsal tubercles of the second and third thoracic segments (two each) are larger 

 than the abdominal ones, and are tipped with dark carmine at the end, and each, besides one or 

 two short setae, bears a long black slender hah, about as long as the body is thick; the corre- 

 sponding hairs on the abdominal tubercles being about one- third as long. There are four well- 

 developed prothoracic tubercles, the dorsal ones larger, more rounded, and prominent than in 

 T. polyphemus, and also bearing besides three or four small, short pale hairs, and a black very 

 long one. The prothoracic tubercles are deep rosy pink, not coral-red. The lateral ones on the 

 same segment are nearly twice as large as those behind in the same series, and all on the body 

 are rosy pink or "crushed strawberry" color. The lateral infraspiracular ridge along the 

 abdominal segments is distinctly lemon-yellow. The spiracles are faint reddish green, quite 

 inconspicuous. The thoracic legs are reddish. The middle abdominal legs are green above, 

 below is a narrow distinct black stripe, the end yellow, while the planta is livid flesh color; 

 the anal legs with an anterior oblique yellow band, and a black spot corresponding to the black 

 stripe, with black hairs above, as on the middle legs. The suranal plate is faintly edged with 

 yellow. 



The larva in this stage differs from T. polyphemus of the same age in the green head, the 

 distinct lateral yellow stripe below the spiracles, which are green, and not readily seen. The six 

 dorsal thoracic tubercles are distinctly larger and more prominent than the abdominal ones, 

 and they each bear a single very long slender black hair, besides one or two short ones; this is a 



