COTTON 409 



Avhich bears a short tapering hair, dark at the base, paler 

 towards the tip. On the seventh segment the median 

 spots are, as a rule, obscure; the lateral ones prominent, 

 but not nearly so clearly defined as on segments five and 

 six. On the eighth segment all four are conspicuous; on 

 the ninth and tenth the lateral spots are fairly well marked, 

 the median pair pale and obscure in comparison. The 

 tubercles are present in each case. On segment eleven 

 there are three pairs of fleshy prominences median, 

 lateral, and sub-lateral; they are more rounded conical 

 in shape, and the covering hairs are less numerous and 

 more spike-like. The apical hairs are long, stout, and 

 dark at the base, finer and pale at the tip. Anterior to 

 the median pair of prominences, and each side of the 

 dorsal line, there are two brownish tubercles which bear 

 a short hair. On segment twelve there are six fleshy 

 prominences, and in this case the two tubercles are repre- 

 sented by similar but smaller structures. 



The anal shield on the thirteenth segment is dark 

 brown or blackish, with sinuous margin. Around the 

 latter are placed rounded conical prominences, covered 

 with short spike-like hairs, and bearing at the apex a 

 long, rather stout, and dark-coloured hair. On the 

 central area of the shield there are a pair of similar but 

 smaller prominences. 



Below the anal shield there are two stout projecting 

 fleshy spikes, which are covered with numerous stiff 

 hairs, and furnished at the apex with a long hair. 



The spiracles, which are oval, black, ringed with black, 

 are situated in a line with and anterior to the lateral row 

 of fleshy spikes, with the exception of the spiracle on 

 the fourth segment, which is below. There is a sub- 

 spiracular line of hairs, except on the second and third 

 segments. Below these, and almost ventral, there is 

 another line of hairs which, on segments one to three, 

 arise from two tubercles, large and small, placed side by 

 side; on the fourth and fifth segments these are repre- 

 sented by a fairly conspicuous fleshy spike. Posteriorly 

 they are very much less prominent. 



The first three segments of the body are, as a 

 rule, pale, frequently pale bluish-green. Laterally the 



