16 THE EICE GRASSHOPPEE 



segments being dai'k brown, the proximal seven being paler in colour 

 Sensory pits on the distal six segments are very numerous, much more 

 so than on the rest of the antenna (see Plate III, Fig. la). 



Colour. — The ground colour of the body is yellowish but the body 

 is so covered with reddish-lirown spots and patches as to have a 

 genei'al yellowish-brown appearance. On tlie middle of the back is a 

 bright greenish-yellow band about i mm. broad, extending from the head 

 to the posterior end of the body. On each side of this, is a dark brown 

 longitudinal band of about the same extent and half the width. These 

 two bands serve to mark off the yellow band very distinctly from the 

 rest of the body. The legs are pale yellow with numerous reddish 

 spots. The main division of the hind leg (femur) has a reddish longi- 

 tudinal streak on its outer surface. ■ 



The ventral surface of the body is dark l)ro\vn in colour. The 

 whole surface of body and legs is clothed with rather line short hairs, 

 those on the legs being somewhat longer. 



SECOND IXSTAR. (PLATE I, FKt. 3.) 



Length on day of moulting ... ... 8 — 83 mm. 



Length of antennae ... ... ... 2 5 ,, 



Number of segments in antenna? 13, but segments 3, 7 and 8 



show distinct signs of division, so that 16 segments are visible. 



In some cases segment 6 also shows signs of division (see 



Plate III, Fig. 2a). 

 CqIoht. — Much as in previous instar, in general, however, paler. 



THIRD INSTAE. (PLATE I, FIG. 4.) 



Length on day of moulting ... ■•• 11 — 12 mm. 



Length of antenna? , ... ... 1 — 4 5,, 



Number of segments in antenme ... 19 — 20 



Segments 4-7 of the previous instar have divided to form two. In 



some cases, however, the division in segment 5 is faint or absent, in 



which case only 19 segments are to be made out (see Plate III, Fig. 3fl). 



Colour. — in general as in previous instar, but in a very few cases 



observed the ground colour was markedly tinged with green. 



FOURTH INSTAR. (PLATE I, FIG. 5.) 



Length of body ... ' ... ... 14— 15 mm. 



Length of antenna? ... ... •.• 5 5- 6 ,, 



Number of segments in antenniB ... 21 — 22 



Colour. - In this instar, the variation in colour i^etween different 

 individual's becomes quite marked, so much so that a casual observer 

 would think that he was dealing with different species. 



While already in the third instar some few specimens show signs 

 of a change to a greenish ground colour, this becomes quite pronounced 

 in the fourth instar. In fact, the insects become almost uniformly 

 green, the lirown patches on the head and prothorax practically dis- 

 appearing. The red spots on face and legs are, however, for the most 

 part retained. Tlie legs are distinctly pale green (see Plate I, Fig. 9). 



