Other
Scientific paper
Dec 1875
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1875natur..13r.167m&link_type=abstract
Nature, Volume 13, Issue 322, pp. 167-168 (1875).
Other
Scientific paper
MY brother, Fritz Müller (Itajahy, Prov. St. Catharine, South Brazil), in his letters to me, has repeatedly started the question whether the size of the ocelli of hymenopterous insects is not dependent on their nocturnal habits. He supports this opinion by the following observations :- 1. Africa pallida, one of the social wasps of Brazil, in the daytime rests quietly in its nest, which resembles the nest of our Polistes gallica, but is attached to the twig of a tree. During the evening it looks after flowers, and, whether sitting on them, and sucking their honey, or flying about in the moon-light, by its moonlike colour it is protected from its enemies. It differs from the allied species, which have diurnal habits, in the largeness of its ocelli. 2. One of the solitary Apidæ of Itajahy, belonging to the family of Andrenidæ (Eophila matutina, F. and H. Müller) has the singular habit of visiting flowers exclusively in the twilight of earliest morning, and is also prodded with unusually large ocelli. 3. A species of Dorylida, probably belonging to the genus Labidus, found, Oct. 1875, by my brother's daughter Anna, late in the evening, flying towards the candle-light, is likewise remarkable for strikingly large ocelli. Concerning Dorylus, Gerstaecker says: Ocelli large, bladdered (``Ocellen gross, blasig'') and Westwood (Introduct. vol. ii., p. 216), ``Mr. Burchell has informed me that the African species of Dorylus is nocturnal in its habits.''
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