the Life History of Trichoiitihts imludum. 137 



of red from I forwards, and on the tliorax the dorsal and 

 next red line are more or less conjomcd. 



Under low magnification the thoracic plate looks nearly 

 black and somewLat homogeneous in colour. 



Inside I and II is a dark depressed spot. Aual plate 

 not dark. 



The larva is not tormented to get a fuller description, 

 but is carefully placed on a better plant in hopes of 

 rearing it. 



Oct. 27th. The larva was found (25th) to have made 

 some slight spinning. Yesterday (26th) the spinning was 

 a fairly complete cocoon with some black dots of frass, and 

 to-day it is more dense and the larva is completely hidden. 



Nov. 20th. Larva (No. 2) u(jted 27th remains in statu 

 quo. Another (No. 1) is found to-day to have begun a 

 new tent; it is still somewhat visible through the silk, 

 and can be seen to be fat and larger if anything than 

 No. 2 at its spinning, but no details are discernible. 

 No. 3 has its cocoon wet from water soaking up the plant ; 

 on this plant the centre bud is wet as it is not in plants of 

 1 and 2. Tlie cocoon does not look very satisfactory, and 

 possibly the larva inside is not doing well. 



Dec. 10th. No. 2 (of Nov, 20th) "is found to-day outside 

 its tent on the move, and opportunity taken to describe 

 it. It does not seem to have grown or to be in feeding 

 humour — moves very sluggishly — is thick and short, is 

 yellow with very large porcellanous-white plates or per- 

 haps is rather porcellanous-white with certain yellow or 

 orange-ochreous lines. The plates being apparently sur- 

 roundings of tubercles, the tubercles and hairs are black, so 

 that the little larva is a rather striking object when closely 

 examined. 



Length when stretched 2'7 mm. Taking the white as 

 the ground-colour, there is a narrow dorsal orange line, 

 a little widened in front of each segment and sending 

 branches, pale and less conspicuous, along the fiont and 

 back margins of segment, so that they are lost in the 

 incisions when the larva is not stretched. I and II are 

 close together, and on a common eminence, and almost con- 

 joined. These and other tubercles single-haired. Between 

 I and II and III is another longitudinal ochreous line. 

 Kound I and II the surface is smooth and porcellanous, 

 but in front of segment on each side of dorsum is an area 

 Avith five skin points. Head and spiracles black. The 



