all these insects under glasses for some time, but could not discover the eggs of the fly, although there were several young caterpillars bred under my glasses. If the same circumstances should occur during the next turnip season, I should think many discoveries might be made, both with regard to these flies as well as to the Aphides, by any one who has time to examine them minutely, and I think every entomologist will find them well worthy of his attention.
I forgot to state that there was a similar visitation in the same district in Northumberland about seventy years ago; since which time, until last year they had not been observed.—G. Clarke.
[See Rusticus of Godalming on Aphides. "The young ones are born exactly like the old ones, but less; they stick their beaks through the rind and begin drawing sap when only a day old."—Ent. Mag. April, 1833. And again:—"Besides the ladybird and its grub there are two other terrible enemies to the poor Aphis: one of which is a green ungainly looking grub without legs, which lays flat on the surface of the leaf, and stretches out its neck just like a leech, till it touches one of them: directly he feels one he seizes it in his teeth, and holds it up wriggling in the air till he has sucked all the goodness out of it, and left it a mere empty skin," &c.—Id. i. 223. It is pleasant to find observers thus corroborating each other's statements.—Ed."]
Note on the occurrence of Rare British Insects. Callidium violaceum in abundance near Elstree, Herts, on a building made of unbarked larch; first week in June. Locusta Christii? (Curtis), Child's Hill Lane, near Hempstead, August. Polyommatus Arion, Barnwell Hold, Northamptonshire; I took sixteen specimens the first week in July. Anthrocera Loti (Stephens), Barnwell Hold, last week in July, in plenty.—Fredk. Bond; Kingsbury, February, 1843.
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Psychopsis mimica.
Description of Psychopsis mimica. This pretty insect was taken at Adelaide, in South Australia, by Mr. Joseph Addison, and is now in the cabinet of the British Museum. The antennae are wanting, and the head and prothorax are so crushed as to preclude their employment in drawing up generic characters. In the wings the nervures, and consequently the cells, are more numerous than in any insect of this order that has come under my notice. Three principal nervures, closely approximate and parallel, divide the basal portion of each wing (the lower as well as the upper) into two regions, whereof the superior or costal region is less than the inferior or abdominal region at ra-
