SILK-PRODUCING LEPIDOPTERA. 239 



patichanda {Cinnamonum ohtusifolium) , may also be used to feed 

 the worms if the first two trees should be found wanting in the 

 last stages. 



During four consecutive years I received during the winter or 

 in the spring large quantities of A, assamensis cocoons, but they 

 never arrived in good condition. In 1889 over 400 were sent to 

 me, all the moths having emerged during the voyage or died in 

 the cocoon. Some of the moths had, however, emerged only a 

 few days before the arrival of the boxes containing the cocoons, 

 and this shows that it would be possible to receive the cocoons 

 before the emergence of the moths, if they were sent in small 

 boxes by sample post, going overland like the letters, instead of 

 being sent by parcel post, which takes a fortnight longer. 



To obviate this rapid emergence of the moths, my correspon- 

 dent in Assam placed in the boxes assamensis larvae which were 

 just beginning to spin, thinking that by so doing about a week 

 would be saved. The experiment was a complete failure, but it 

 taught this lesson, — that larvae cannot live, or change into pupae 

 that will live, when they are travelling ; the shakings expe- 

 rienced by the larvae when travelling prevent them from forming 

 their cocoons properly, and also kill the larvae or newly formed 

 pupae. Therefore I only found dead larvae or dead pupae in the 

 cocoons. 



Anther^a frithii, Moore. — This is probably only a variety 

 of A. mylitta. It is found in some parts of India, in Cochin - 

 China, &c., and, according to Captain Hutton, at Darjeeling. 



Anther^a perrotteti, Guerin Meneville. Another race or 

 variety of A. mylitta, discovered at Pondicherry by Mr. Perrottet. 



Anther.ea helferi. Another species, the cocoon of which 

 resembles that of A. mylitta {Anthercea nehulosa, Hutton). ** A 

 remarkable species, common in Central India, the silk of which 

 can be compared to that of A. mylitta,'' — Capt. Hutton. 



BoMBYX {TheopJiila) huttoni, Westwood. "A bivoltine species, 

 living in the mountains on the wild mulberry tree, at Simla, 

 Mussoorie, and Almorah. B. huttoni is a robust species, pro- 

 ducing a fine whitish cocoon. Although the huttoni worm is too 

 wild to be bred in captivity, it would be a useful species for rear- 

 ing in the open air on the mulberry tree itself." — Capt. Hutton. 



BoMBYx (Theophila) bengalensis, Hutton. A polyvoltine 

 species, resembling J5. huttoni^ but living in Bengal on Arto- 

 carpus locucha. " This species is smaller than the preceding 

 one." — Capt. Hutton. 



BoMBYX AFFiNis. Discovered in 1869, at Chota Nagpore, by 

 M. Kingi ; it lives on Artocarpiis locucha, but Capt. Hutton 

 reared it with the greatest success on branche of Morus indica. 



(To be continued.) 



