230 THE entomologist's RECORD. 



vertical tick at the base. This centre was surrounded with a thin 

 white ring, which, in its turn, was set in a darlc ring bounded by a 

 copper-coloured border merged into the adjoining ground colour. 

 The ventral surface was of the tint of the dorsal. It was irregularly 

 blotched, with a series of dark warts arranged in two lines, lengthways, 

 having two warts on each segment. On segment three there was a 

 dark ring, which, on a fleshy projection, ascended laterally across the 

 spiracular line to a dark bristled wart on the subdorsal. 



By the 23rd of the month the larva measured l^in. long, and 

 appeared to the eye of a brownish -grey colour. It now assumed for 

 the first time that close imitation of the twig on a plant stem, which 

 many of the " Thorns " adopt. The hold with its spreading and 

 strong claspers was firm, and the body carried in a straight line at 

 about the angle of 45^' to its resting-place. There was spun from the 

 head, to some adjacent and convenient point, an extremely light 

 thread, and the habit of the larva was dull and lethargic. The head 

 and the ridged projections on the body imitated the embryo buds in 

 aspect, and the third pair of legs, carried in a projecting manner from 

 the thorax, tightly pressed together, formed another broad sheath of a 

 further development in appearance. The first two pairs of legs were 

 closely packed against the ventral surface of their segments. 

 Examined with the lens, the head was in ground colour of a dark 

 steely-grey, marked with horse-shoe-shaped and ocellated blotches of 

 a dark brown in a very beautiful manner. A V-shaped bar traversed 

 the face, apex upwards to the lobal division, with each extremity rest- 

 ing upon the base of the pointed lateral protuberances from the jaws. 

 These were now light-coloured on their bases, with flesh-coloured ex- 

 tensions terminating in the stiff and pointed bristles. Under this 

 light V-shaped line was a dark strong border, and in the triangle 

 between the lobes the face was greenish-grey. The jaws were grey, 

 Avith a thick setting of hairy projections. The lateral semicircles of 

 Avhite spots, dark centred, and set in fawn-coloured rings, were still 

 present on the cheeks. The dorsal area was smooth in texture and 

 grey in colour, densely covered with the reptilic-like reticulation of 

 brown, yellow, black, and white. Its distinctive features were a light- 

 coloured, fine subdorsal line each side, starting from the lobes of the 

 head and running to the anal segment. This line was very broken 

 and wavering in its course, but accentuated on the anterior edge of 

 each of the prothoracic segments by a Avhite spot on a rich brown 

 warty protuberance. On the crown of the metathoracic segment were 

 two minute black warts, followed, on the 1st and 2nd abdoruinal seg- 

 ments, by heavy skinfoldmg to an elongated dark black blotch, on 

 each side of which the subdorsal line was at its widest, and inclining 

 inwards in line. This was again followed by four pairs of rich brown 

 warts, with white centres. On the 2nd abdominal segment the 

 transverse ridgy hump was very decided, and of a rich dark brown 

 colour, with a light lateral blotch on each side. On the 8rd 

 abdominal segment there was a dark tubercle projecting laterally on 

 the spiracular line ; while on the r)th and Hth were found the other 

 two transverse projections on the dorsal area; the first-named slightly 

 bifid on the crown, and the second terminating in two blunt points. 

 These were of a rich deep brown colour also, with white lateral 

 blotches. On the dividing segmental skinfolds, and also midway 



