348 



Segiii. 2=1, but s. subdorsalis is absent. 



„ 3, 4, 5, 6 = 1. but s. subdorsalis is absent, v. infni stigmalis 

 often consists of one or two setae; and on the segments 3 

 and 4 there is often a v. poststigmalis with four setae; 

 V. hasalis with six setae ; the pigmental spots on the leg 

 have increased in size and bear many short setae. 

 „ 7 = 1. 



„ 8. The "caudal horn" has become entirely median, and its 

 formation by the blending of the two v. dorsaJes is no 

 longer clearly visible. It is now 600 y, high, perhaps s. suh- 

 dorsalis is united with it, else it has disappeared ; further 

 there occur -v. suprastigmalis with three setae, v. hasalis with 

 four setae, v. ventralis with two setae, of which the most 

 lateral one is perhaps s. i)ropedalis. 

 „ 9. V. dorsalis is formed by the union of the right and the left 

 one. It is now 300 ;'z. high and resembles that of segment 8, 

 but is smaller ; no s. subdorsalis, s. suprastigmalis, v. hasalis 

 with four setae, s. propedalis^ s. ventralis (see abd. 8). 

 „ 10. V. dorsalis^ with four setae; s. suhdofsalis ; one spot 

 with setae under the anal opening, probably agreeing with 

 V. hasalis, s. propedalis and on the leg three s. pjedales. 

 Instar III. Length 9 mm. 



In these and the following instars all verrucae and setae remain 

 entirely as during instar //. To prove this, I drew the abdominal 

 segment 5 of instar T^, i. e. after the last moulting (Length 40 mm.). 

 Distinguishable are still : i\ dorsalis, with three setae, placed imme- 

 diately beside that of the other side and behind this a black 

 spot ; s. suhdorsalis, r. suprastigmaUs with three setae ; c. hasalis 

 with five setae. Further the whole leg is covered with long setae ; 

 namely more than 1000 /z long, whereas the remaining primary 

 setae are about 500 y.., and the secondary ones about 100 y. 

 So we see tluxt a very insignificant growth of the primary setae 

 lias taken j)hice, namely of 400—500 f/,., whereas the body has 

 grown from 4 to 40 mm. and during instar V to about 80 mm. 



