Larvæ of at least two, perhaps of three, species of Lepidoptera were obtained in the vicinage of Observatory Bay. One sort was occasionally brought off to the ships by the men in gatherings of Pringlea in October and the early part of November. It would probably develop into a moth about as large as an Agrotis of medium size, and was conjectured to belong to the Noctuina (Etn., Proc. Roy. Soc. 1875, xxiii. 354). Its affinities, however, may he very different, as it is likely to have been the larva of the insects referred to by Dr. Kidder as “lepidopterous "insects of moderate size, with very imperfect and abbreviated wings, active in "their movements, and . . . with . . . antennæ . . . long and thread-like" ... [and labial palpi] "pectinate, and curling backward over the top of the head." These were obtained by him "on the evening of December 18 . . . . from the "roots of grass" (Kidder, Bulletin U. S. Nat. Mus. 1876, iii., 50). If the larvae above mentioned and these moths are the same insect, the condition of the palpi of the imago seems to indicate that it is related to the Gelechiidce . And this sup­position is quite consistent with the form of some other larvae (believed to be younger examples of the species obtained in October) which were found commonly in moss in December and February near Observatory Bay. They could be identified on the island, in situ, by the following brief description. Larva Gelechiidiform with 16 legs, grey, paler beneath and along the spiracles; head and dorsum of first segment pale corneous, the usual raised dots of the other segments dark grey, shining, each bearing, —some a short, others a long, —testaceous hair. Length 13 mm. and upwards. Common in wet places on the hill sides near the sea, making galleries in moss.