64 STAUROPUS FAGH. 



their insertion it was elevated far above the level of the 

 back. 



The fifth, sixth, seventh, eighth and ninth segments 

 were deeply divided, having elevated conical humps 

 one on each side of the back, very prominent on the 

 fifth, sixth and seventh, but decreasing in prominence 

 on the others, the eleventh segment a little flattened at 

 the lateral margin, the twelfth had a much wider spread 

 flattened lateral rough margin, the thirteenth, still flat- 

 tened at the margin, tapered rapidly to the tip, which 

 bore a short projection curving downwards a little, and 

 on either side of this two slender, stiff filaments, a 

 little diverging and curved downwards a little behind ; 

 the four pairs of ventral prolegs well developed, fur- 

 nished with fine hooks at their extremities. The belly 

 rather flat. When crawling, the hinder segments were 

 extended in line with the rest of the body so that the 

 anal filaments touched the ground at every step, but in 

 repose the last three segments were elevated at a right 

 angle with the body, and when the larva was alarmed 

 they were turned so much upwards as to project for- 

 wards a little over the back. When this occurs sud- 

 denly, and the front segments are suddenly contracted 

 and a little arched, and the head drawn back and 

 mouth elevated, the antennal papillse and all the long 

 legs in front fully extended and playing with a tremu- 

 lous motion, a very threatening aspect is given to this 

 innocent larva. 



In colour the head was dark purplish-brown, with a 

 darker purplish-crimson streak down the front of each 

 lobe ; a pale, greyish -yellowish dorsal stripe, of about 

 uniform width, was broadly bordered with blackish on 

 the thoracic segments and merely edged with blackish 

 on the others, the rest of the back being brown ; the 

 humps on the fifth, sixth, and seventh segments had 

 each from the eminence anteriorly a black streak 

 slanting downward on to the next segment in front as 

 far as the spiracular region, closely followed by a streak 

 of pale brownish- ochreous ; the other humps were 



