80 



longer setae (l'/2 mm.) than in instar /, v. stiprastigmalis, v. in- 

 frastigmalis and v. basalts about as in instar /. 

 Segni. 2 = 1 ^ but v. subdorsalis is still larger and grows along 

 the ventral edge of v. dorsalis in the oral direction. 

 „ 3, 4 := 1, but on the leg we find a black spot with a 

 number of small setae which are only partly plumed. This 

 spot I consider to be a modified v. pedalis. 

 jj 5=1, but V. dorsalis is wanting. 



^ 6 = 3, but V. dorsalis is absent and in the median line a 

 red elevated gland is visible, which has the form of a 

 champagne-cork. 

 ^ 7 = 6, but there is no v. pedalis. 



^ 8 = 7. Without the gland. The two v. subdorsales of the 



left and right sides are placed very closely together and 



also have the particular setae mentioned in segment 1. 



„ 9, 10 =: 7. Moreover, the wart of segment 10 of instar / 



which was considered to be v. infrastigmalis is well developed. 



Instar ///. Duration 11 days, length 10 mm. 



Prothorax. There is no longer a prothoracic shield. F. dorsalis 



is small, lying against the median side of the very large, far 



projecting v. suprastigmalis. On the top of the last wart we find 



short plumed setae of a length of ± 2 mm. Amidst these are shorter 



ones (± 1 '/i mm.) of which the side branches are a little longer. 



Towards the end of the setae these side branches grow somewhat 



longer and thicker and are placed more closely together. Each 



of these peculiar setae reminds one a little of a French plumeau 



(feather mop) or of one of the feathers on the head of a Goura 



victoriae. V. subdorsalis is small, v. infrastigmalis large, v. basalis 



very small. 



Mesothorax and Metathorax as in instar //. 

 Abdomen 1, 2. V. dorsalis and v. subdorsalis have united with 

 each other and also with those of the other side. This method 

 of origin is still clearly visible. They bear one tuft of setae, 

 + 1 mm. long, which show longer and thicker side-branches than 

 the setae generally possess, and they are of a deep brown colour. 



