488 Mr. H. Pryer on certain temperature 



nearly every month in the year, and is common in the 

 mountains and on the plains. The female here, as 

 in other species of Colias, is dimorphic, the white and a 

 yellow form being equally abundant. 



Pieris napi and McZefe. — I think the latter will prove to 

 be a temperature form of the first-named species, which 

 only appears in March and April. Melete begins to put 

 in an appearance in the latter part of May ; subsequent 

 broods increase in size and depth of coloration. I have 

 round-winged May specimens If in. against 2| in. long- 

 winged August specimens. There is as great a difference 

 between May and August specimens of Melete as there 

 exists between Melete and napi. 



Pieris rap(e. — Appears first in March small and light- 

 coloured ; subsequent broods are larger, and in the 

 female very darkly clouded at the base of the wing. I 

 have, however, taken in July, about 3000 feet up Fujisan, 

 smaller specimens than those obtained about Yokohama 

 in March. Mr. Elwes in his list (Proc. Zool. Soc, 15th 

 Nov., 1881) gives Pieris hrassiccB as being found in Japan, 

 but I have never seen either the imago, larva, or pupa of 

 this insect here. His remarks refer to rapce, which is 

 very abundant. The food-plant, larva, and pupa do not 

 differ from the home species. 



Terias Hccahe, &c. — Six years ago, in March, I observed 

 a hybernated specimen of Terias Mandarina depositing 

 its eggs on Lespedeza junca ; I took these, and was much 

 surprised by breeding from these eggs the black-bordered 

 Hecahe form. At the time I thought some larvae of Hccahe 

 must have been accidentally introduced into the breed- 

 ing-cages, and hesitated publishing the fact until I had 

 verified it. This year I have repeated the experiment 

 fully, and I am now in the position to assert positively 

 that Hecahe and Mandarina are one species. I obtained" 

 a number of the plants and potted them, after carefully 

 examining every leaf for eggs or larvfe. I then caught a 

 number of female Mandarina, and enclosed them in a 

 gauze house with the plants, and soon obtained a good 

 supply of eggs. The perfect insects are now emerging, 

 1st to 20th June; no two specimens are exactly alike, 

 and they comprise all the forms from Nos. 1 to 11 of 

 Plate vi.. Trans. Ent. Soc. Lond., 1880. Nos. 12 to 17 

 are the autumn forms, which hj^bernate. Sixteen speci- 

 mens in all have emerged, eight females and eight males. 

 It is a very remarkable fact that four of the specimens, 



