286 THE entomologist's recokd. 



divisions well marked ; subsegmental divisions not well marked. Legs 

 and claspers moderate in length. In general, the larva has a some- 

 what shagreened appearance. The dorsal and subdorsal areas of the 

 body are yellowish-green ; the broad mediodorsal stripe dark greyish- 

 green, with numerous white dots, and more or less bordered with pale 

 spots, each with a short, white, point in the centre. Close to the 

 mediodorsal stripe is tubercle i, and, lower down, ii. In this subdorsal 

 area are many pale spots and points, irregularly placed. Just below ii, 

 runs the narrow, conspicuously pale, subdorsal line, composed of pale 

 spots with a point in the centre of each. The area between this line 

 and the very strong white flange is dark greyish-green, like the medio- 

 dorsal stripe, with several, scattered, white points. Here is tubercle iii, 

 and, beJow it, the small, black, spiracle. Just above the flange, and 

 behind the spiracle, lies iv, while v is situated on the flange, and is 

 subspiracular. The area below the flange is dark greyish-green as are 

 the anal claspers and ventral prolegs, the latter having an ochreous 

 pad and a row of sixteen reddish -ochreous crotchets. The thoracic legs 

 are black, with ochreous bands. The meso- and metathorax have five 

 subsegments, the tubercles occurring on the third ; the fourth and fifth 

 subsegments are very narrow. The abdominal segments, typically, 

 also have five subsegments, the first very wide, and the second and 

 fifth very narrow. The primary tubercles much the same as before, 

 but the long white hair is attenuated to a blunt point. The length of 

 the hair on i is about 0-65mm., that on ii, OTnim. ; iv and v carry 

 hairs about 0-34mm. in length, while iii and vi (as I am inclined to 

 call it) have hairs about 0-6mm. There is a small tubercle, with a short 

 hair, on the prolegs. On the 8th abdominal segment, the trapezoidal 

 tubercles (i and ii) form a square, and on the 9th abdominal an inverse 

 trapezoid, that is, the two tubercles i are further apart than the two 

 tubercles ii. The somewhat diamond-shaped anal shieldis of theground 

 colour and inconspicuous ; it carries an anterior and a posterior row of 

 four hairs, in this respect like the prothoracic shield. Except round the 

 bases of the tubercles, the white points, and the spiracles, the skin is 

 covered with shining, black, spicules, which vary much in size. Those 

 which are still simply spicules, are smooth at the apex, on the upper 

 parts of the larva, but sharpl}^- pointed on the venter. They vary much 

 in the state of development from the merest, microscopic, black dot, 

 through the sharply-pointed spicule, up to the small, dark grey, tubercular 

 with a short black point at its summit. The curious white points 

 mentioned in the account of the third instar, have now developed 

 further. They rise from a very small, scarcely perceptible, plate, which 

 runs round their bases as a border. They are rather swollen at the 

 base, and terminate in either a truncated or a pointed apex. They 

 are about 0.5mm. in height, very stout, and snow-white in colour. 

 They are more numerous on the upper parts of the larva than on the 

 parts below the lateral flange. Fiftli instar : Length 21mm. Width 

 of head l-7mm. Head small, partly retractile into the prothorax, 

 w^hich, however, is not very wide, the colour is pale ochreous-grey, 

 spotted on the crown with ochreous-brown. Body slender, cyhndrical, 

 though slightly flattened on the back. The pale longitudinal stripes 

 give the larva the appearance as if it were much flattened on the back 

 and sides. The flange is very strong, white, commencing on the 

 prothorax, just below the spiracle, and terminating on the 10th 



