DEBIS I. 



base ; all the cross-ridges thickly set with fine whitish tubercles, each giving a 

 very short fine hair ; tails red-tipped ; under side, feet, and legs pale green ; 

 head ob-ovoid, broad on lower front, narrowing rapidly upwards, well rounded on 

 front and sides ; on each vertex a long, tapering process, their bases meeting at 

 the suture ; these processes, as well as the rest of the head, are rough, with large 

 rounded equal tuberculations, each with its short, stiff v/hite hair ; color yellow- 

 green, the processes red, all tubercles white ; the ocelli brown, the largest green 

 with brown rim. (Figs, g-g^-) From fifth moult to pupation about fifteen days. 

 The position when suspended is shown by Fig. h. 



Chrysalis. — Length .6 inch, greatest breadth across both mesonotum and 

 abdomen .22 inch ; cylindrical, the abdomen conical ; head case short, bevelled on 

 both sides equally to a rather broad, sharp ridge, with sharp, triangular corners, 

 at top a -little excavated, the sides roundly excavated ; mesonotum prominent, 

 angular, the apex rounded, followed by a shallow depression ; wing cases flar- 

 ing at base, very little constricted in middle ; color delicate green, sometimes 

 with a bluish tint ; the ventral side of abdomen paler ; the top of head and 

 dorsal edges of wing cases cream-white ; sui'face smooth, glossy. (Figs, i to i^.) 

 Duration of this stage in May, thirteen to fourteen days. 



PoRTLANDiA flies throughout the Atlantic States and Mississippi Valley. It is 

 abundant in the South and West, but how far to the West it flies I am unable to 

 say. I have received it, however, from Fort Niobrara, Nebraska. It is believed 

 to be nowhere a common species in New York or New England, and is occa- 

 sionally taken as far east as Halifax, Nova Scotia. Prof. C. H. Fernald informs 

 me that at Orono, Maine, the late Mr. Anson Allen used to find it in some 

 numbers through the summer on a road through a growth of spruce trees. I 

 learn from Mr. H. H. Lyman, of Montreal, that Mr. E. C. Trenholme, of that 

 cit}^ has found this species tolerably common on the Western and Little Moun- 

 tains, above Montreal, on one occasion having " come upon a flock of a dozen, 

 flitting about near the ground." Mr. Lyman writes that he has received two 

 specimens taken at East Selkirk, Manitoba, lat. 50° 10', the most northern 

 locality probably so far noted. 



In Say's time, about 1825, Portlandia was known only as southern, and that 

 author states that it had never been taken so far north as Pennsylvania. Very 

 likely the species has spread to the north and east during the last sixty years, 

 as many species of birds are known to have done. Mr. Philip H. Gosse, in 

 his " Canadian Naturalist," London, 1840, p. 246, speaks of seeing a single 



