( ^^ii ) 



extruded, continues the curve of the burrow. As this curve is 

 upwards inside the stem, horizontal at the surface of the stem, 

 it becomes downwards if continued outside. One pupa case 

 just below the node was not so correctly oriented, whilst in 

 other specimens a pupa emerging below the node and therefore 

 from a downward l)urrow, faced and curved upwards. A 

 number of vacant holes were also visible, being the exit of an 

 ichneumon, which affects a large majority of the Tortrix. The 

 species was believed to be Chelonus inanitus, Nees. Tiie 

 heads of several dead ones that failed to emerge successfully 

 were to be seen at some of the holes. Dr. Chapman said 

 he had placed a black circle round four holes as prepared by 

 the larva of the Tortrix for emergence, that were still intact, 

 and in two of these it was to be noted that the diaphragm was, 

 as he had described, the cuticular tissue of the plant ; in the 

 two others, however, this had been damaged, and here the larva 

 had made a silken diaphragm fortified with chips of the stem 

 tissue. In the neighbourhood of the node especially the holes 

 of entiy were to be seen packed tightly with frass, which 

 appeared to be uneaten material. At the extremities of the 

 specimen, which was too short to contain the whole of the 

 individuals that entered at this node, the larva3 had burrowed 

 in the stem. 



Mr. F. Enock exhibited living specimens of male and female 

 Ranatra linearis, Linn., from Epping, together with the 

 peculiar forked eggs, which he had observed laid by the 

 Kanatra, as it rested upon the upper surface of the leaf 

 grasping the edges with its claws. The short anterior legs 

 are held well up close together, in a line with the body, the 

 head raised about an inch from the leaf, while the tip of the 

 abdomen and ovipositor is pressed against the leaf — a down- 

 ward and forward movement being given. The ovipositor is 

 thus forced through the leaf, then partially withdrawn and the 

 egg extruded and forced into the hole as far as the forked 

 filaments, which prevent it from going right through the leaf. 

 The eggs are frequently laid in the half-decayed stems of 

 aquatic plants. The peculiar Prestivichia aqitatica, Lubbock, 

 has been bred from the eggs of Jianatra. 



Mr. H. K. DoKisTHORPE exhibited a larval case of ClytJira 



