126 THE ESSEX NATURALIST. English climate of late autumn and winter. Mucking, in S. Essex, seems to have been a fruitful source for Mr. Mera, as among other species to be described later, we find a series of seventeen Pale Clouded Yellows (C. hyale) from that locality in August, 1900. This is another immigrant which in certain years successfully raises a comparatively large colony in this country. Coming to the Fritillaries, we find a specimen with a tendency towards albinism among the Dark Green (A. aglaia), and two good specimens of the Queen of Spain (A. latona), one from the collection of the late W. M. Cole. This extemely rare butterfly in this country, another immigrant, like the Bath White, has only been seen or taken about twenty times in the last forty or fifty years. There are four good aberrations of the Pearl Bordered Fritillary (A. euphrosyne), some heavily marked with black, and including one figured in South's ''Butterflies." Included among the Brown Hairstreaks (Z. betulae) are nine specimens bred from Epping Forest in 1894. This in all probability has now disappeared from the "Forest," and these must be some of the last reared. There are two Large Coppers (C. dispar), unfortunately not in very good condition; these are from the collection of G. O. Day of Knutsford. A long series of the Large Blue (L. arion) was collected by Mr. Mera him- self in Cornwall, one of the very few remaining districts where this fine insect still occurs. A remarkable variety of the Common Blue (L. icarus) is devoid of spots on the underside, except the four discal ones, and has wings rayed with white; this is labelled "Felixstowe." The Blues as a group are noted for the variations they exhibit, and there are several striking aberrations among the Adonis and Chalk Hill Blues (L. bellargus and L. coridon). The Mazarine Blue (L. semiargus) is represented by two authentic Welsh specimens; this butterfly has been almost entirely extinct in this country for the last fifty years. This completes my notes on the butterflies, and we now come to the moths. Among the Hawk-moths there are five Essex Death's Heads (A. atropos). These occasionally turn up in the county; one I found near Braintree last October. There are also some Small Elephant Hawks (C. porcellus) from Forest Gate and Mucking. I doubt whether it occurs in the former locality now, though the food-plants, the two Bedstraws (Galium verum, G. mollugo) are widely distributed. There is a series of