of Southern India. 113 



shade is too dense, and consequently the trees look thin, 

 lank, with dark g'reen foliage and scanty fruit, but where 

 they approach the clearing- they are splendid in size and 

 fertility, and have no Borer. This fact induces me to 

 believe in judicious shading', whether iu bamboo or forest 

 land." 



{Extracts from the Coorg Season-Beport, hy the Rev. G. 

 RiCHTER, dated Mercara, 15 October, 1867.) 



" In my last season-report I stated some points as still 

 doubtful, viz., the mode and time of egress of the coffee- 

 beetle, the mode of depositing its eggs, the period of de- 

 velopment of the several transformations of the insect. 

 To investigate these matters, I made the following 

 experiments. 



1. On the 2nd August last I examined some coffee- 

 stems with the Borer in them. I cut them up into several 

 pieces of convenient size, and carefuUj'' split these open, 

 to mark the position and appearance of the larvse ; three 

 of these seemed to be full grown, and four of smaller size. 

 Joining the pieces carefully together, I presei'ved them 

 in a glass box. On re- opening them after a few days, 

 the larv« had filled the exposed burrows with the woody 

 excrements and made themselves invisible. Yesterday 

 (14th October) I split the same pieces in different places, 

 and out of the seven Borers in the larva state on the 

 2nd August I found three transformed into the pupa 

 state, the other four were still larvse in full activity. The 

 pupge lay with their heads close to the bark, which was 

 however not perforated. 



2. On the 3rd Oct. I split a dozen trees attacked by 

 Borer, and secured four pairs of full-grown beetles alive, 

 besides many pupae and laiwas. In every instance I 

 found the two former in their burrows, shut up from the 

 outside by the bark only. 



In order further to examine the habits of the beetle, 

 and especially the mode of laying its eggs, I made 

 arrangements which represented as much as possible the 

 natural condition of the habitat of the insect. I took a 

 glass shade two feet high, nine inches wide, and open at 

 both ends. This I placed upon a board, and cutting the 

 stem of a fresh coifee-tree into two pieces of the requisite 

 height and lateral width, with leaves attached, I placed 

 them in the cylinder, the bottom of which I covered with 



TRANS. ENT. SOC. 1868. PARTI. (aPRIL) . I 



