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Volume 7 - March 1875

Contents

Page 2 of 6

Articles

  • THE EFFECT OF THE GLACIAL EPOCH UPON THE DISTRIBUTION OF INSECTS IN NORTH AMERICA

  • Aug. R. Grote
  • Published online by Cambridge University Press:
    31 May 2012, pp. 164-167

  • From the condition of an hypothesis the glacial epoch has been elevated into that of a theory by the explanations it has afforded to a certain class of geological phenomena. The present paper endeavors to show that certain zoological facts are consistent with the presence, during past times, of a vast progressive field of ice, which, in its movement from north to south, gradually extended over large portions of the North American continent. These facts, in the present instance, are furnished by a study of our Lepidoptera, or certain kinds of butterflies and moths now inhabiting the United States and adjacent territories.

  • ON LYCÆNA NEGLECTA, Edw

  • J. A. Lintner
  • Published online by Cambridge University Press:
    31 May 2012, pp. 122-123

  • In the very interesting paper of Mr. W. H. Edwards, published in the May number of this journal, in which another valuable addition is made to the knowledge of our Lepidoptera, by the identity therein shown of the Lycænas pseudargiolus and violacea–autumnal and vernal forms of the same species–it is suggested that neglecta and lucia may prove to bear the same relationship to one another.

  • DESCRIPTION OF A NEW CALIFORNIAN AGROTIS

  • V. T. Chambers
  • Published online by Cambridge University Press:
    31 May 2012, p. 144

  • ♀.Fore tibiae unarmed; middle and hind tibiae spinose. By the flattened abdomen allied to cupidissima. Fore wings dark blackish brown, with the terminal space paler, somewhat olivaceous. As in exsertistigma, the orbicular is open, triangulate, bloadly pale margined, fusing superiorly with a pale subcostal shade extending from the base of the wing above this spot. Unlike exsertistigma, the orbicular and reniform are black, the ground color of the median space about them being powdered with deep yellow.

  • ON NEW SPECIES OF AGROTIS

  • A. R. Grote
  • Published online by Cambridge University Press:
    31 May 2012, pp. 186-188

  • ♂. Allied to A. bicarnea Guen,; smaller and distinguishable by the evenness of the t. p. line. Fore wings dead brownish black. T. a. line rigidly oblique to submedian fold, not rounded as in its ally, and with a less prominent tooth on internal margin. A very faint yellowish shading to the line and also on the costa at inception of t. p. line, where A. bicarnea is strongly marked with carneous. T. p. line shaped as in its ally, but even, geminate, the inner line not scalloped; the component lines include a pale shading.

  • ON SCOPELOSOMA AND ALLIED GENERA

  • A. R. Grote
  • Published online by Cambridge University Press:
    31 May 2012, pp. 205-207

  • The shape of the fore wings is like Scoliopteryx, and the ornamentation is like that genus, while the stigmata are well defined, the course of the lines being similar in the two genera. This is a much more robust form than the European Atethmia xerampelina, and has different shaped, more dentate primaries. Eyes naked, tibiae unarmed. Eucirroedia pampina(Guen.) has the colors of Fodia.

  • TINEINA FROM CANADA

  • V. T. Chambers
  • Published online by Cambridge University Press:
    31 May 2012, pp. 144-147

  • This beautiful and well known European insect is now for the first time discovered in this country. I quote Mr. Sainton's description from Ins. Brit., v. 3, p. 187. “Head yellowish white. Face and palpi white. Antennæ white, annulate with fuscous. Anterior wings white, sometimes suffused with golden, with an oblique golden fascia from the base of the costa.

  • NOTES ON THE LARVA OF GRAPTA FAUNUS Edwards

  • F. B. Caulfield
  • Published online by Cambridge University Press:
    31 May 2012, pp. 49-50

  • On the 6th of June, 1874, I found on a wild gooseberry bush four larvæ of Grapta faunus Edwards. Length of full grown larva, 1¼ inch ; form cylindrical ; head flat in front, black, furnished with two branching horns and a few scattered white hairs ; a yellow V-shaped stripe in front ; the base between the horns, the ends pointing towards the mandibles ; mandibles black.

  • DESCRIPTION OF A NEW SPECIES OF DRYOCAMPA

  • G. J. Bowles
  • Published online by Cambridge University Press:
    31 May 2012, pp. 108-109

  • Head, thorax, abdomen and wings above, of a creamy white, without any trace of bands or markings. Beneath, the body and wings are also creamy white, the costa of both fore and hind wings being near the base very faintly tinged rvith yellowish pink. The legs are also slightly pinkish. Antennae pale brown. Palpi and other parts of the mouth yellowish.

Other

Articles

  • CAPTURES OF NOCTUIDÆ AT ST. CATHARINES, ONT

  • Geo. Norman
  • Published online by Cambridge University Press:
    31 May 2012, pp. 3-6

  • In the spring of this year I commenced collecting the Nectuæof this part of Canada, and in the hope that a list of my captures, with the dates of appearance, may be of interest, I venture to send the same for publication.

    Being a stranger to the insect fauna of N. America, and in the absence of anything like a manual of the Heterocera, I shouls, even with the assistance of the Brit. Mus. Catalogues and Gueneæ's work, have had great difficulty in identifying my specimens.

Other

Articles

  • METHODS OF SUBDUING INSECTS INJURIOUS TO AGRICULTURE

  • John L. Leconte
  • Published online by Cambridge University Press:
    31 May 2012, pp. 167-172

  • In accordance with the predictions made at the time of its first appearance in the immediate Mississippi Valley, the Colorado potato beetle continues to extend its area of distribution. It has during the last and present seasons reached the Atlantic Coast of the Middle States, and is preparing an invasion in mass of the maritime parts of New England, which will soon be overrun with the same ease with which it has conquered the Western and Middle States. Meanwhile the farmers are anxiously inquiring for means of destroying the invader.

Other

Articles

  • ON ORTHOSIA RALLA, Gr. & Rob

  • J. A. Lintner
  • Published online by Cambridge University Press:
    31 May 2012, pp. 128-129

  • In the April number of this journal, page 79, it is asserted by Mr. Morrison that “the well known orthosia ferruginoides Guen. is redescribed as Xanthia ralla Gr. & Rob.”

    Having examined the type specimen of ralla, in the possession of the Buffalo Society of Natural sciences, I am able to pronounce it entirery distinct, and further, that it differs so much from the species to which it is above referred that there would seem to be no valid excuse for the erroneous reference.

  • AGROTIS RUBIFERA, N. S

  • A. R. Grote
  • Published online by Cambridge University Press:
    31 May 2012, p. 207

  • Allied to rubi and conflua. Taken by Mr. Norman in Canada, and considered to be identical with the European rubi in former writings. Abdomen and hind wings paler than in conflua. Fore wings of a darker purply-reddish brown; t. a. line geminate, a black spot before the orbicular and usually the disc between the spots is black stained. Claviform indicated. Subterminal pale, more waved, but like conflua, differing from rubi; beneath the common line is not diffuse as in conflua.

Page 2 of 6