276 THE ENTOMOLOGIST. 



on the Continent. The larva, like that of newara, hybernates in 

 the ovum state. A peculiarity of the fugax larva is that it squeaks 

 when touched, or even if it is slightly disturbed. 



Gricula trifenestrata. This curious species is found in 

 various parts of India, sometimes in such large numbers that 

 the larvae completely strip the mango trees of their foliage ; they 

 also destroy the foliage of Acacia catechu, and even attack the 

 tea trees. It is found in Burmah, Moulmein, and at Chota 

 Nagpore in Central India. The cocoons are in large bundles, 

 and they adhere so firmly to one another that they cannot be 

 separated to be spun, which their structure besides would not 

 allow ; therefore they are carded. They are perforated like net- 

 work, and are of a golden yellow colour. I made this species 

 known in Europe in 1884, and the larvae were reared with the 

 greatest success. I bred them on oak, plum, apple, pear, and 

 willow trees, and later on plum exclusively; they are very 

 polyphagous. 



In Mr. Stack's report the following is said respecting this 

 species: — '' Amluri or Ampotoni {Cricula trifenestrata) .— The A.m- 

 luri takes its name from the mango tree or Am on which it^ feeds. 

 It is one of the most common in Assam. It is found in the 

 valley at the foot of the hills on the northern and on the 

 southern side. It is also found at Gachar, where it feeds on the 

 wild tea tree. It is also frequently found on the sum ; but its 

 favourite food is the mango tree of the forests or that cultivated 

 near the villages. The chrysalis, like those of all species 

 of silkworms, is eaten, and is considered as a great delicacy by 

 the Kacharis, the Kabbas, the Meches, and the Mikirs. The 

 Kev. F. Camboue has also stated, in his reports on the Mada- 

 gascar silkworms, that ' some of the natives (the Malgaches) eat 

 with delight silkworm chrysalides, which they fry in fat.' " 



During several years I received from the late I)r. John Shortt, 

 of Yercaud, in the Shevaroy Hills, Madras Presidency, large 

 numbers of Cricula trifenestrata cocoons ; but the great difficulty 

 has also been to receive the pupae alive, as the moths for the 

 most part emerged in transit about three weeks after the forma- 

 tion of the cocoons. 



I may here state that, after several years of experience, I 

 found that if pupae sent from hot countries are considerably 

 delayed in producing their moths in consequence of a great 

 change of climate, the moths, although the pairings take place, 

 and they seem perfectly healthy, lay eggs that are not fertile, as 

 a rule. Being months instead of weeks before they emerge, the 

 moths of tropical regions seem to have lost their vitality and 

 power of reproduction. Besides, a considerable number of these 

 tropical species die in the pupa state, when the heat is not 

 sufficient to allow the moths to emerge at the very time they are 

 ready to make their appearance. 



