jo Indian Museum Notes. [ Vol. VI* 



numerous, is to cut out and burn ail infected ones as soon as noticed 

 in order to prevent the attack from spreading. 



Points in the life-history requiring further observation. 



i. Length of time spent in the grub stage. 



2. Length of time spent in the pupal stage. 



3. When does the beetle emerge. Specimens of it should be 



sent to the Indian Museum, Calcutta, for identification. 



4. How many generations of the insect are there in the 



year ? 



6. Hymenopterotis Gall on leaves* 



Specimens of a hymenopterous gall were sent to the Museum by 

 the Superintendent of the Darbhanga Gardens on the 20th January 

 1903. They proved, however, too dry to enable the insects to be 

 identified. The eggs are laid upon the leaves and the irritation set 

 up by the young larva as soon as it hatches out boring into the leaf 

 tissue causes a gall to form upon the leaves. 



More fresh material is required in order that this pest may be 

 studied and identified. * 



Insects infesting the PEACH [Primus persica). 



1. Aphis sp. 



Order, Hemiptera. Family, Aphides. 



Wingless larva. — Pale canary yellow of the usual aphid shape, the 

 posterior segments being larger and thicker than the anterior ones ; 

 two siphons dorsally and posteriorly placed. Antennae 7-jointed. 



Winged adult. — Head black. Antennae 7-jointed, blackish. 

 Prothorax yellow dorsally with black transverse bands, ventrally a 

 yellow band just beneath head, rest being black. Abdomen yellow 

 with black patches dorsally ; canary yellow on ventral surface. Siphons 

 black. Scattered hairs on dorsal posterior segments of body 

 (behind the siphons). Legs yellow, the femora (thighs) being black 

 except just at their upper ends : lower portion of tibiae black. 

 Wings 4, colourless. Long. 1*3 to r8 millim. 



This insect is a serious pest to Peach trees. The aphids cluster 

 round the tops of the new year's shoots and on the leaves of young 

 trees and suck out the sap, completely aborting the shoot. Young 

 attacked trees have the ends of all the branches curled up, the new 

 shoots becoming dwarfed, withered and brown. A closer inspection 

 shows that the branches attacked have ceased growth, and instead 



