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Volume 27 - September 1936

Contents

Page 3 of 4

Original Articles

  • The Jamaican Species of Hippelates and Oscinella (Diptera, Chloropidae)*

  • Henry W. Kumm
  • Published online by Cambridge University Press:
    10 July 2009, pp. 307-329

  • 1. Fifteen species of Chloropidae were taken in a survey of Jamaica.

    2. H. pallipes, Loew, was found in greater numbers and in more localities than any other species.

    3. H. peruanus, Becker, was readily attracted to traps baited with decaying dead animal matter whereas H. pallipes came but rarely to such traps.

    4. H. pallipes was most prevalent at elevations ranging from 101 to 1,500 feet above sea-level. H. currani was frequent somewhat lower down, and H. pusio and H. illicis were most common quite close to the sea.

    5. A key with explanatory diagrams has been prepared for identifying the adult Chloropid flies of Jamaica.

    6. Also the distribution records of all species captured during the island survey have been tabulated.

    7. Two new species of Hippelates flies have been described.

    8. Three photomicrographs of the immature stages of H. pallipes which were taken are briefly discussed.

Other

Back matter

  • BER volume 27 issue 1 Cover and Back matter

  • Published online by Cambridge University Press:
    10 July 2009, pp. b1-b4
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Original Articles

  • Two new Egg-parasites of Batocera (Col., Lamiid.) in Malaya

  • Ch. Ferrière
  • Published online by Cambridge University Press:
    10 July 2009, pp. 331-333

  • The Imperial Institute of Entomology has received from Mr. N. C. E. Miller, from Malaya, some interesting Chalcids, which have been bred from the eggs of Batocera rubus, L. Parasites of Cerambycidae are generally little known everywhere and only very-few egg-parasites of beetles have yet been described. Mr. Miller's breedings are therefore of special interest and importance. We understand that he has made some biological observations, which he intends to publish; therefore, although very few specimens of these parasites have been received so far, we venture to describe them here with the material at hand. One species belongs to the Cleonymidae and to a very striking new genus, which can be confused with no other known genera; the other is the first species of Ooencyrtus known to attack eggs of Coleoptera.

Front matter

  • BER volume 27 issue 4 Cover and Front matter

  • Published online by Cambridge University Press:
    18 September 2015, pp. f1-f4
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Back matter

  • BER volume 27 issue 4 Cover and Back matter

  • Published online by Cambridge University Press:
    18 September 2015, pp. b1-b4
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Original Articles

  • Pests attacking Citrus in Jamaica

  • W. H. Edwards
  • Published online by Cambridge University Press:
    10 July 2009, pp. 335-337

  • Oranges, and to a lesser extent grapefruit, have been exported from Jamaica for many years but to an extent considerably under the potentialities of production of the country. In order that the Colony may derive full benefit from natural conditions definitely propitious to the growth of these crops, as well as from the possibilities afforded by an exceptionally advantageous geographical position with regard to world markets and trade routes, the Department of Agriculture is at present organising and developing production of citrus fruits for export on a much larger scale.

  • The Part played by Microclimates in enabling Glossina submorsitans and G. tachinoides to withstand the high Temperatures of a West African Dry Season

  • T. A. M. Nash
  • Published online by Cambridge University Press:
    10 July 2009, pp. 339-345

  • 1. It has been confirmed that the lower limit of the critical zone, for fly of medium age, is 102°F. for both species; this limit is probably even lower for very old G. tachinoides.

    2. The adverse effect upon the fly community of a day when the maximum temperature enters the critical zone is continued among the older individuals for several days following, even though the maximum temperature on these days remains below the lower limit.

    3. From the mean maximum temperatures recorded over 52 days in 9 microclimates, it would appear that sites on the ground are cooler than those above the surface; the difference is not very great, the mean for the four ground sites being only 4·4°F. lower than the mean for the five above-ground sites.

    4. The evidence suggests that on very hot days only the ground within the true forest is safe for tsetse; in all other sites—above the ground in the true forest or on the ground in the intrusive and peripheral thickets—the temperature is liable to enter the critical zone, and may even reach the upper fatal limit.

    5. The tsetse community is living very close to the critical zone in the late dry season. Even the coolest ground site yielded an absolute maximum that was only 3·5°F. below the lower limit.

    6. Site no. 9 gives an indication of how severe the conditions might become in the true forest were the windbreaks of peripheral and intrusive thicket removed.

    7. In ground sites a shower of rain produces about twice as great an initial drop in temperature, and temperature remains abnormally low for about twice as long, as it does for sites above the surface of the soil.

    8. The duration of the period of dangerously high temperatures to which the fly community is subjected in the late dry season may be very varied; it depends upon the incidence of rain in April and May.

Miscellaneous

Original Articles

Front matter

  • BER volume 27 issue 2 Cover and Front matter

  • Published online by Cambridge University Press:
    10 July 2009, pp. f1-f4
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      • You have access
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Original Articles

Back matter

  • BER volume 27 issue 2 Cover and Back matter

  • Published online by Cambridge University Press:
    10 July 2009, pp. b1-b4
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Original Articles

Page 3 of 4