Mr. Alfred Wailly, whose reports on silk-producing and other Bom-byces reared by him have been published in this Journal, has submitted to the Council specimens of cocoons and moths of a new silkworm, which he has reared by the crossing of Attacus (An-theraea) Roylei, female, the Himalayan oak silkworm, with Attacus (Antheraea) Pernyi, male, the North China oak silkworm. The resulting hybrid is larger than either of the parents. Mr. Wailly writes that "the larvae of the hybrids were reared with the greatest success in France, Germany, Austria, England, Scotland and United States of North America, and everywhere splendid cocoons were obtained. This year (1882), in April and May, the moths of this hybrid emerged from the cocoons in equal proportions of male and female, all perfect insects, which paired with the greatest facility." He concludes by saying: "Contrary to what has taken place with the crossing of different species of silk-producing Bombyces, I have this time produced a new species, which is larger, stronger, and I think superior in every respect to the parent species, and susceptible of reproduction." Some notes on these hybrids were read before the Entomological Society on May 3, 1882, by Mr. W. F. Kirby. - Society of Arts Journal.