XCIIl THE CL4NADIAN ENTOMOLOGIST LOSS used primarily as an area sampIer, the results map be expressed in terms of volume by recording also the depth of the water and the debris. The cage may he reas~embled into a more compact unit for carrying by removing the sorting travs, rotating them laterally through 180 degrees and placing them over the enclosure as shown in Fig. 1, L. The trap braces (I) are fastened in altcrnate positions to hold the twvs onto the enclosure as a lid. When reassembled thus, the cage could also bk used as an emergence cage for mosquitoes and other aquatic Diptera simplv hy providing a sleeve on a reinforced olpening in a convenient side franie. A sponge rubber gasket (K) ensures a seal hemreen the nvo halves of the lid. Book ReviewsDer Kafer. Ein Wunder der Schiipfung. By Ewald Reitter. 206 pp., 3 figs. and 59 plates. 34 x 24 cm. Chr. Belser Verlag, Stuttgart, 1960. Price 80 DM. This book is a fine example of virtuositv in colour photography and printing applied to beetles. With one exception thk subjects are dead and pinned specimens, although this is rarely obtrusive, selected for the most part: for showiness and size. With this in mind it is not surprising that two thirds of the exampIes are from the Scarabaeidae or Cerambycidae; other groups represented include the Adephaga, Chrvsomelidae, Anthribidae, Brenthidae and Curculionidae. The insects appear to hive heen photographed against a background of ~vliite foamed plastic with lighting arranged to give a rather weak shadow wllich relieves some of the flatness usuallv seen in photographs from pinned specimens. T h e reproduction is above reproach. The onlv photograph from life, and perhaps the finest picture in the book, is of the larva of ,\4egnsoma gyas Hbst. which, at twice life size, occupies a full page. From one to ten specimens are reproduced on each right hand page. The Latin names with their meanings in German, German common names, size, sex, distribution and brief notes on the species are printed on each facing page.Despite the sub-title and introductory quotation from the Bible most of the text, although rather elementary, is quite modern in outlook, and covers such topics as structure, evolution from the primitive insect, development, sexual dimorphism and perhaps too generously, beneficial and harmful beetles. The classification used however is that of Handlirsch, 1923, and there is no precise systematic arrangement of the plates.The plates are followed by an appendix on the history of the study of beetles, articles on how to collect and prepare them, an index to common and Latin names and an index to authors and journals.B. HOCKINGThe Feeding Behavior of Hippodamia quinguesignata (Kirby) Larvae.
The Australian sheep “ blowfly ” Chrysomyia rufifacies, Macq., is shown by a study of chaetotaxy and the genitalia to be distinct from C. albiceps with which it has been considered identical. A discussion is given of the composite genus Chrysomyia and the genera into which Séguy has recently divided it. The synonymy of C. rufifacies is given and also the distribution of C. rufifacies, C. albiceps and C. putoria, the three species which Patton has considered synonymous.
1. A general account is given of the habits and distribution of Tectacoris lineola, together with a description of the adult, and some remarks on the influence of weather conditions on mating.2. The eggs and the different instars are described, and the period of time occupied by each is given.3. The connection between Tectacoris lineola and boll rot incidence is established.4. A table is given illustrating the comparative effect of boll rots and bollworm damage in the past season (1924–1925) on the Cotton Research Farm.5. The effect of bug punctures on cotton seed and its infection with Fusarium moniliforme are briefly discussed.
SummaryA study was made to determine whether or not Eutermes exitiosttS maintains within its mound a constant temperature at which it would be desirable to maintain artificial laboratory colonies of this termite.It was found that the temperature of the mound is not constant. The temperature of a given portion of the mound varies with the time of day, and varies from day to day with changes in environmental temperature.The temperature of the nursery exhibits less variation than other portions of the mound, but it is continuously higher than the temperature of the air or the soil, or of that portion of the mound which receives the greatest amount of heat from the sun. The temperature of the nursery follows a seasonal trend which roughly parallels the seasonal change in air temperature.Although the temperature of a mound is not constant, and although it is related to the surrounding air temperature, it is affected by the presence of living termites in the mound, the temperature of an occupied mound averaging from 14.5 0 to 1B.6°F. higher than it would if it were unoccupied. The temperature of an occupied mound is apparently maintained above that of an unoccupied mound by the metabolism of the termites. The number of individuals present in the mound in the summer is less than the number present in the winter. By virtue of the higher temperature of the mound in the summer, and the resultant higher metabolism of the termites, the smaller number of individuals present in the mound is capable of maintaining the mound temperature as much above that of an unoccupied mound as is the larger number present in the winter.The presence of alates in the mound results in the temperature being from 10 0 to 13°F. higher than that in mounds of comparable shape and size in which there are no alates.Termites, probably as a result of movement into the mound from galleries away from the mound, are capable of buffering the effect of sudden falls in air temperature.The prac.tical applications of tlle observations on mound temperature are as follows:(a) By recording mound temperature, it is possible to distinguish populous from non-populous mounds. This ensures that when a mound is selected to provide termites for laboratory colonies, the maximum number of termites procurable from a mound at that particular time of the year will be secured ... Publication of this manuscript has been unavoidably delayed by several factors, the more important of which have been the departure of the senior author for Honolulu and the intervention of the war. t Division of Economic Entomology, C.S.I.R. ( b) By recording the temperatures of mounds chosen for field studies on the resistance of timbers and timber treatments, one can be sure of using only vital colonies, and can also keep a check on the vitality of the respective colonies throughout the period of the test. (c) By recording the temperature of mounds used for insecticidal studies, it is possible to compare the effects of various toxic materials on termite colonies which are known to be normally hea...
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