329 



PnitliorK.r. Thoro is a large prothoracic shiold whicli on cach 

 side lias twü very long setac (3 mm.) and behind tliem two or threo 

 shorter ones (■74 mm.). These taken togetlier I consider to be 

 V. dormlis and apart from them is one seta corresponding with 

 s. si(b(/ors((lis. T. xtipradigmaUs and /'. dorsolateralis over the 

 clearly visible v. prostigmalis. V. prostigmalh projects a good 

 deal and has three setae, v. hasalh four. Over the stigma are 

 two tnbercula with five and two setae. They take their origin 

 from the spots which have appeared in instar ///. 



Ah(lo)HP)i 5. Both the median dorsal shields, arisen during in- 

 star 77, are still present. The verrucae dorsales, v. suhdormUs^ 

 c. suprastU/iiiaU.^, v. poatstigmalis are clearly visible. The per- 

 maneney of this last wart is interesting as it showed an inclination 

 to dissolution in instar III. V. infrastignialis consists of some 

 scattered setae. There are less setae hasales than in instar ///, 

 there is also a v. ped(dis present in the form of a spot. Other 

 spots are : on the front edge under the median shields a large one and 

 two smaller ones of which the 2nd Hes in front of v. suprastig- 

 DiaJis, next come a large and a small one about on the same height 

 as the stigma and v. poststigmalis. Behind the first smaller spot of 

 this row we find two a little larger, and behind these in the same 

 row V. suhdorsalis. Over d. poststigmalis is a very large spot, 

 which lies therefore in one row with the 2nd large spot of the 

 Ist vertical row. Under 0. poststigmalis are small spots with long 

 setae which I first took to be primary ones because of their 

 length. They lie in a row with r. infrastigmalis. Over the setae 

 hasales is a long-drawn spot. In different individuals and in diffe- 

 rent segments of one individual, these spots and tubercula vary 

 a little in form and size. Most of them resemble the above example 

 and one can always recognize the same primary tubercula. 



Instar V. Length 40 m.m. 



The primary tubercles can not be found. All the setae are 

 somewhat plumed and are + 2 m.m. long. The spots have almost 

 grown together to stripes. Round each seta is a little area free 

 from pigment. Over the stigma are, the dorsal median included, 



