THE ENTOMOLOGIST. 95 
Laboulbenei, and of very extraordinary habits, the larva being 
aquatic, living in the canals of the sugar plantations in 
Cayenne, and feeding upon an aquatic plant. ‘The hairy 
larva had all the form usual for the group, and breathed by 
means of small spiracles,—a supply of air being apparently 
entangled in its hairs. The cocoons were joined together in 
little masses floating on the surface of the water. 
Olivierian Collection.—Mr. M‘Lachlan read a letter that 
he had received fiom M. Ernest Olivier, stating that the 
collection of insects formed by his grandfather had been 
purchased some years after his death by MM. Chevrolat and 
Jousselin. A great part of the collection had been suffered 
to fall into decay; but recently a portion, comprising the 
Curculionidae, Heteromera, Lamellicornes, Sternoxi, Chryso- 
melide, Clavicornes and Hydrocantharide had come into his 
possession, and he would be happy to show them to any 
English entomologist who might desire to examine any of the 
numerous types. Unfortunately the Carabide and Longicornes 
were almost entirely lost. 
Election of Officers.—The following gentlemen were elected 
Members of Council for 1874:—Sir Sidney Smith Saunders, 
Messrs. W. C. Boyd, Dunning, Grut, Meldola, Moore, 
M‘Lachlan, F. Smith, Stainton, Stevens, Verrall, Jenner 
Weir, and Professor Westwood. The following officers were 
subsequently elected, viz.:—Sir Sidney Smith Saunders, 
President; Mr. M‘Lachlan, Treasurer; Messrs. Grut and 
Verrall, Secretaries; and Mr. Janson, Librarian. The Presi- 
dent then read an Address on the progress of Entomolog 
during the past year. 
Insects in Limestone Caves.—Mr, Miiller exhibited the 
following specimens, which he had found on a recent visit to 
some limestone caves in the Jurassian Mountains. 1. A 
blind Myriapod, found on decayed trunks of trees carried into 
the cave by floods. 2. A minute Podura, which had, how- 
ever, become quite shrivelled. 3. A species of Hmalastor, 
Koch (a genus of Schusselzecken), mentioned by Kolenati in 
‘Die Parasiten d. Chiroptera’ (Dresden, 1857). Mr. Miiller 
did not observe any bats in the cave, but the insect was 
creeping on one of the stalactites, from which it dropped into 
his hand. He believed it was the first time that any blind 
specimens had been found in the caves of Switzerland. 
Longicorn destructive to Coffee Plantations at Natal.— 
The Secretary read extracts from a letter from Mr. W. D, 
