Sriiiicr 'III : DiTriiilirc iftit VIW 



VciììdU' livva, 36 iiìiìì. Ioikj, hilled al llic citd of 

 Uic SvpU'Dihcr larval nioull. (lit;, i i). — The antenna 

 which is ;').,") mm hjnf^ and lapers j,a-atlually i'rom the 

 base to tlic tip has about o<S joints (the /ilh and fol- 

 lowinc: joints are very pale and (Hl'lieiilt to count 

 exactly). The ord joint which has not yet completely 

 subdivided is abolii twice as l)Uj;- as broad. 

 Nos. /i-ii, wide and llaltencd, are about one and a 

 half times as broad as lonj^. After the i lih a few 

 shorter joints are seen in pairs which appear to have 

 arisen by a secondary division into two like those 

 of the male larvae mentioned above. The marks of 

 this secondary division are, however, less clear in 

 the female than in the male. 



I mounted their cast skins by the side of these 

 antennae in Canada balsam and found the same 

 number of joints in both. The only difference be- 

 tween the two is that the cast skin is slightly more 

 transparent, it is as it were the mould of the new 

 antenna. 



It is therefore clear that the number of joints in 

 the antennae may increase at other times than at the 

 moults in spite of the statements of some authors, 

 notably in the case of the Termites. 



Fi'nmlc tiifi'ii, '^S nin>. Ioikj (m;ì t'l^'uvc ) . — The 

 aidenna is t\ mm. long and has 32 joints of which 

 the 3rd., still capable of subdivision, is tv\o and a 

 half times as long as broad. The following joints 

 lengthen gradually as far as the tip but narrow 

 almost imperceptibly. Nos. ii — i 'j show signs of 

 di\ iding shortly. 



