539 



effected an entrance through a water-pore. (Specimens of leaves 

 so attacked were exhibited.) When the larva is fully fed, it 

 starts to cut out a circle from the leaf it is living on, but the cut 

 is not continuous ; at the same time it spins threads across the 

 circular piece, and presently forms a complete capsule, at j&rst 

 soft and easily damaged, but which soon becomes quite hard. 

 The circular cut is then completed, and the detached piece falls to 

 the ground. The surface of the ground below the attacked trees 

 looked as if strewn with light-brown confetti. Light and heat, 

 even the warmth of the hand, stimulate the jumping, which 

 appears to be due to the preference of the larva, now assuming 

 the pupal form, for shade against direct light. (The specimens 

 exhibited were too far advanced towards pupation to jump.) The 

 insect, which proved to be Phyllotoma, one of the saw-Hies, is 

 quite rare, and has been only recorded for Great Britain on a few 

 occasions. It has also been seen this year at Ealing. 



The President said the appearance was quite like brown 

 confetti hopping about, and reminded one of the Mexican jumping 

 bean, the movement of which was probably due to a similar 

 cause. 



Mr Perks thought that they ought not to allow Mr. Row to 

 leave without giving him their thanks for his communication 

 under the circumstances the President could hardly do this, he 

 had therefore great pleasure in proposing a hearty vote of thanks 

 to Mr. Row for his kindness in coming there that evening. 



The thanks of the Club were thereupon voted to Mr. Row with 

 acclamation. 



Mr. A. Earland exhibited a new species of Foraminifera, 

 Psammosphaera rustica (A. and E.) from the North Sea. It is 

 one of the Astrorhizidae, and constructs a polyhedral chamber by 

 selecting a few long sponge-spicules and filling up the interspaces 

 with smaller fragments of spicules, the whole being cemented 

 together in a single layer. 



JouRN. Q. M. C, Series IL No. 71. 



36 



