134 THE entomologist's record. 



My drawing of the young larva as it leaves the egg (pi. x., fig. ii) 

 shows a much simpler creature than those which I have dealt with 

 previously. The peculiar hairs which have been so noticeable in the 

 other species, are noAV no longer in evidence. With this exception the 

 larva differs little from the rest. The lateral flange is present but 

 much less developed, and more broken up. The special hairs w^hich 

 mark the tbercules are but slightly enlarged, and I think flattened, 

 short and club-shaped. I have drawn the head and first thoracic 

 segment from a vertical point of view (pi. x., fig. iia), and cannot see, 

 at this stage, much sign of the bifurcation which is so distinct at a 

 later stage, yet, from the side view, the projection upon the first 

 thoracic segment shows a slight indentation, and I must suppose that 

 the processes of pickling and mounting have filled up the groove. I 

 have also enlarged the first abdominal segment, more because I always 

 do so, than because it shows any particularly interesting details 

 (pi. X., fig. iib). 



I am unfortunately unable to feel quite certain as to the exact age 

 of the other larvs depicted. The next drawing (pi. x., fig. iii), shows 

 probably a well-grown larva in the second instar. It has quite 

 assumed adult form. The white spicules which are so beautiful in the 

 larvas of (Teo)iietra papilioiiaria, a.nd still more so in Heiiiithea aestivaria, 

 are here also plainly visible, although they appear to be less regular, 

 and more nebulous than at a later stage. The bifurcation of the head 

 and first thoracic segment are now quite distinct although they do not 

 appear in my drawing. The curious development of a sort of forest 

 of clear plates or leaves, extending from, or standing upon, the skin in 

 parallel lines, more noticeable at a later stage, now begins to show 

 itself. The lateral flange is not very distinct except in the spiracular 

 region. 



I have here again drawn the first abdominal segment on a larger 

 scale (pi. X., fig. iiia), but no new feature appears, unless perhaps, 

 it be the difficulty I have found in determining the point at which the 

 segment commences anteriorly. 



My last figure (pi. x., fig. iv), must, I think, represent the final 

 instar, although I have no absolute information on the pomt. It was 

 killed on July 26th, and so might have had a month or more to grow. 



Here we see the granulations or spicules very distinctly, and I have 

 tried to make them clear in my drawing of the first abdominal segment 

 (fig. ivrt). This is not the best marked segment, but enough is 

 shown to represent the important part which these particles bear in 

 the ornamentation, producing the "subdorsal line whitish, lateral ridge 

 pale yellow," of Meyrick's description (fig. ivb). 



The transparent plates springing from the body are depicted (fig. 

 ivf/), as they appear upon the dorsal edge. It is quite evident that 

 they are set in parallel rows, which follow one another down the sides, 

 ;so that from any point of view those in front appear shorter than 

 those immediately behind. 



I have observed silken threads entangled amongst these plates, and 

 no doubt they do, from their closeness and irregularity, entangle any 

 object which may come in contact with them. 



The tactile hairs are quite evident upon the 6th abdominal and 

 2nd thoracic segments, and it is very noticeable that the two rather 

 coarse ones on the 1st thoracic, which w^e have referred to in examining 



