1864.] 499 



vior wings, and there are two red spots on the costal margin, instead of 

 heing " similar to the upper side." 



I have described a species below, which, if it does not prove to be 

 «listinct from this, is at least a remarkable variation from either Mr. 

 Crray's figure or description. I have named it after my friend. Mr. 

 E. T. Cressou, of Philadelphia : — 



:'•''>. Sericinus Cressonii, nov. sp. 



Fi'nmJe. — Differs from Sen'cinua Forfiuiei (Montela. 9 ) in the follow- 

 ing particulars : — 



Fore wings, have the fifth transverse black band connected with the 

 margin by dilated black nervules, forming a sub-marginal row of small 

 yellow lunes. 



Hind wing's, have the crimson band wider, and the two last sections 

 are lunate, and separated from each other, and the remainder of the 

 band by intervening black lines, below this, four pale blue lunes : a 

 very hirge yellow patch on the costal margin near the outer angle; a 

 large lune of the same color, situated on the angle : tail, yellow at ba.se 

 and tip, intermediate portion black, very long, 1.25 inches and nar- 

 rower than in any other species of the genus ; expanse o.lo inches. 



Below; the primaries have four red spots, two just beyond the ex- 

 tremity of the discoidal cell, and the others on the inner margin. 

 ►Secondaries, have two red spots on the costal border, and the space 

 posterior to the crimson band is irrorated with blue atoms, not formed 

 into distinct figures Hut covering the whole surface. 



Thorax and head, black, a yellow line on each side of the thorax, 

 below yellow, with red spots. Abdomen yellow, a broad dorsal band, 

 two rows of lateral dots, and two ventral rays, all black. 



Hub. — China. (In my collection.) 



Eggs, extracted from the body, resemble a flattened spheroid, great- 

 est diameter, .042 inch, least, .025 inch, white, with a double black 

 ring around the middle, parallel with the direction of compression. 



I have now finished the family Papiliunidse as far as possible in 

 relation to my own collection, but before closing this paper, I desire to 

 present a few remarks of Thos. Horsfield, Esq., treating of what may 



