1900.] 153 



therefore laid a day before the other, i. e., on October 2ud — 8rd, and 

 not as the larger probably was, on 3rd — •Ath ; a conclusion the 

 reverse of that arrived at above. The young larvae are white, with 

 black head and plate, and are very active and capable of going through 

 very minute clinks, so that they rapidly disappear if not looked to. 

 A number are placed on an Asphodel about 6 inches high. The 

 greater proportion of these disappear downwards and bide them- 

 selves between the leaves where they arc in contact, a few, however, 

 remain singly in the hollow of the leaves, and cover themselves with 

 a little web of silk. 



October 31st. — The larvae yesterday seen under webs (and some 

 others) are now in the substance of the leaves, having entered by a 

 minute but very obvious hole, the larvae themselves being in some 

 cases fairly well seen, and in others only apparent as shaded spots, 

 the leaf being at the spot too thick and the larva not close to the 

 cuticle ; other larvae are still external, but down between leaves where 

 they are in contact, and have made a little spinning, and produced 

 some frass. 



Of some placed yesterday on some leaves of a common perennial 

 blue lupin, the only one visible without disturbing leaves has eaten a 

 minute trench in the leaf of about one-half his own length. 



Oct. 7th. —Eggs laid October 3rd, now have the young larvae 

 apparently quite matured inside, and the black head and thoracic 

 plates are very distinct, and give a curious and interesting aspect to 

 the patch, each head pointing in one direction, except the marginal 

 eggs, in which all the heads are pointed outwards. 



Nov. 2nd. — The larvae placed on lupin make a web, generally 

 of a tubular form, swung as a hammock, and eat the leaf at the front 

 end of this, but never apparently mine into the leaf, whilst those in 

 Asphodel nearly all burrow, one or two are still visible between the 

 leaves towards their bases, where their surfaces are closely applied, 

 only of course by separating the leaves. 



Nov. 6th. — The larvae seem to have been placed too abundantly 

 on the Asphodel, as it is already looking sickly and yellow, and in 

 places even drying, not where the basal burrows are but beyond them, 

 several of the small leaves have many larvae in them. 



The newly hatched larva is about 1"2 mm. long, but 20 mm. if 

 stretched, width of head 0"2 mm., white (or colourless), head and 

 thoracic plate black, the legs and anal plate and bases of prolegs are 

 also tinted dark, and more so some little time after hatching. The 

 tubercles on abdominals are i, ii, and iii in usual places, iv and v with 



