PKOCEEDINGS OF THE THIRD ENTOMOLOGICAL MEETING dyi 



Eggs are deposited in the same manner as those of Chilo simplex. 

 The caterpillars bore inside the stems and also pupate there. The 

 iullgrown larva measures about 20 mm. in length, and tapers slightly 

 at the extremities. The young larvae have practically the same thick- 

 ness throughout their length. The head is yellow and the prothoracic 

 shield paler than the head. The body is pale-yellow and, in the case 

 of hibernating larvae, greyish. The five stripes on the back are grey- 

 brown. The pupa is about 12 mm. long and yellow-brown in colour. 

 The surfaces of the fifth, sixth and seventh abdominal segments are 

 practically, smooth, a very faint roughness being observable at the 

 anterior part of their back under a high-power lens. 



Chilo sp. (C. S. 1769). 



Plate 59 ; Plate 60, fig. 1. 

 Foodplants — 



Kanra {Saccharum arundinaceuni). 

 Ikri (Saccharum fuscum). 



The caterpillars were found in small numbers in these two plants 

 in March- April. They were boring new shoots and causing " dead 

 heart." 



The fullgrown caterpillar is about 25 mm. long. The head is dark 

 red-brown, shiny ; the prothoracic shield similarly coloured as the head 

 and divided longitudinally in the middle. The general colour of the 

 body is pale yellowish- white with promiaent shiny warts. The dorsal 

 vessel is visible and looks like a stripe. 



The caterpillars pupate in the stem near previously-made holes 

 through which the moths emerge. The pupa is dark-brown in colour. 



Diatrcea sp. (C. S. 1795). 



Plate 60, figs. 2,3. 



Foodplant — Ikri [Saccharum fuscum). 



The caterpillars were found in very small numbers in March. They 

 have a red-brown shiay head, a large brown plate on the prothorax 

 and prominent warts on a pale-yellow body. The pupa is brown. 



