1883.] 235 



the nervures of light brown, extending from the middle to the exterior margin. 

 Posterior-wing with a row of three brownish-grey lunular spots between the median 

 nervules, and a spot at the anal angle, above which is a row of three small faintly 

 marked spots of same colour. 



Under-side : anterior-wings rayed as above, but paler. Posterior-wing with a 

 longitudinal red spot at the base, divided by the precostal nervure, which is blact, 

 and a small red spot below the costal nervure, a broad band of ochreous-yellow witli 

 a row of black spots in the middle, extending across the wing between the median 

 nervules, and a small spot of ochreous-yellow beyond ; a black spot at the top of the 

 band next the anal angle, three blue spots near the exterior margin from the costal 

 nervure to the median nervule. Exp. 4 inches. 



Sab. Bandaug Agang, Sumatra (Forbes) ; iu the collection of 

 H. Grose Smith. 



This sj)ecies belongs to the Memnon group, in which, however, 

 there is nothing which resembles it. 



London : February, 1883. 



A marine caddis-fly. — In the report on the condition of the sea-fisheries of the 

 south coast of New England, Washington, ISVS, pt. i, p. 379, a phryganid larva in 

 its case is noticed by me. The larva was found on the piles of a wharf at Menemsha. 

 This is a bay in Martha's Vineyard Island, distant about a dozen nautical miles from 

 the shore of Massachusetts. The small island has no river and no creek to speak of. 

 Menemsha Bay is a real rock-pond among the rocky parts of Gayhead, connected 

 with the sea. The only insects found there are the larvae of Chironomus oceanicus, 

 Pack., and a larva in a case similar to that of the European Molanna ; so I recog- 

 nised it at once. The larva, one-third of an inch long, was alive and in good con- 

 dition. Although only one specimen was collected at the time, there is no doubt 

 that it has to be considered as a marine animal, the more so as there is scarcely a 

 possibility of its having been imported from fresh water. As I had no separate 

 copies of the paper, and as it is not likely to come into the hands of an entomologist, 

 the fact has been overlooked, but Mr. McLachlan's interesting paper induces me to 

 draw attention to it. — H. A. Hagen, Cambridge, Mass., U. S. A. : January Wth, 

 1883. 



[My notes, to which Dr. Hagen refers, appeared in Ent. Mo. Mag., xviii, p. 278, 

 and xix, p. 46, and were published in detail in the Journal Linnean Soc, Zoology, vol. 

 xvi, pp. 417 — 422. I was not unprepared to hear that some indication of " a marine 

 caddis-fly " had previously appeared. Miss Clarke, of Boston, who honoured me with 

 a visit last summer (and who is an enthusiastic student of the habits of Trichopterous 

 larvse), told me she thought a notice of a marine caddis-fly had been published iu one 

 of the American Fisheries Reports, but the information was too vague, and no 

 citation of the important notice has (so far as I know) appeared elsewhere. So I am 

 the more obliged to Dr. Hagen for this note. Molanna seems to me just the genus 

 one might suspect of including marine species, and it is possible that the New 

 Zealand genus {Philanisus) may be allied. — R. McLachlan.] 



