Abstract. Honey bees foraging for nectar on lavender (Lavandula stoechas) chose inflorescences with more of their flowers open. The number of open flowers predicted whether an inflorescence was visited by bees, inspected but rejected, or ignored. Inflorescences chosen arbitrarily by observers had numbers of open flowers intermediate between those of visited and ignored inflorescences. Differences in morphological characters between types of inflorescence correlated with nectar volume and sugar weight per flower so that visited inflorescences had a disproportionately greater volume of nectar and weight of sugar per flower and greater variance in nectar volume. Although there were significant associations between nectar content and the morphological characters of inflorescences, discriminant function analysis revealed discrimination on the basis of morphology rather than nectar content. Visited inflorescences tended to have smaller than average flowers but bees tended to probe the largest flowers on visited inflorescences. Choice of flowers within inflorescences is explicable in terms of the relationship between flower size and nectar content.

During the month of July, 1921, I had the opportunity of working with Dr. Annandale on the molluscs of Loch Lubnaig and Loch Vennachar in Perthshire, Scotland; and I was able to study carefully the two cercariæ infecting Limnæa peregra Müll. The material was examined in the living condition. Some of it was fixed in sublimate acetic and preserved in alcohol for subsequent study in sections.

The following descriptions of new species of Curculionidae are from material collected in South Africa, Rhodesia, and South West Africa by collectors in different parts of the country and by members of the Museum staff, who have also acquired a large number of new and interesting species on their expeditions to Damaraland, Ovamboland, and the Kaokoveld between 1916 and 1926, and to Portuguese East Africa in 1924. Most of the descriptions of the new species of Brachycerus are from specimens labelled and designated as types by the late Dr. L. Peringuey, which he did not himself describe or of which his descriptions in manuscript form are too fragmentary to publish. The types of all the Curculionidae described by Dr. Peringuey in the Trans. S. Afr. Phil. Soc, vols, i-iv, 1885-1888 and 1892, and deposited in his private collection, have subsequently been transferred by the late author himself to the South African Museum collections.

The only account of the larval stages of Bunostomum trigonocephalum (Rud.) which I have been able to find is a brief note by Baillet (1866), in which he states that the larvæ of Uncinaria cernua Crep. = B. trigonocephalum (Rud.), develop in water and hatch within four or six days. The newly hatched larvæ are “rhabditiform,” .35 to .4 mm. long and ·23 to .3 mm. broad, and the tail is very thin and filiform.

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