38 THE ENTOMOLOGIST’S RECORD. 
sought to accomplish was to study a small group of the Arthropoda, 
the Myriapods, familiarly called Centipedes and Millipedes, about which 
very little was known locally. This he has accomplished, a considerable 
number of species being listed. At the same time the other obscure 
groups of the Arthropoda were by no means neglected, and we find that 
in Mr. Bagnall’s favourite group the thrips or Thysanoptera, he has 
recorded several species as new to the British List. In fact during the 
year the additions to the British fauna were ‘‘one order, four families, 
eight genera and about sixty species of which thirteen or fourteen are 
new to science.” The Report shows that persistent effort on definitely 
laid out lines will produce in the study of these obscure groups a sure 
success, and it also shows that there is still a large amount of discovery 
to be made in this country. When it is remembered that many 
economic troubles are caused by the advent of vast numbers of minute 
and obscure insects, it must be recognised that such a study is all 
important. 
Prof. T. D. A. Cockerell is still adding to the number of known 
fossil insect. In the Proceedings of the Biological Society of Washington 
he introduces three species of special interest. The first, the Hymen- 
opteron Trigonalys pervetus, which represents a family not previously 
known as fossil. Thesecond, the Protorthopteron Palaeocarria ornata, 
represents a family new to American strata. The third, another 
Protorthopteron, Genentomum carrt, an additional species of a rare 
family containing only two American and five European species. 
In the Naturalist for November Mr. T. H. Day gives a series of 
notes on ‘Cumberland Dragonflies.” He includes thirteen species, 
among them being Leucorrhinia dubia, locally abundant, and a speci- 
men of Orthetrum coerulescens. Still more Agrius convolvuli are reported, 
this time from the Louth district, and also an example of Hippotion 
celerto. 
In the Scottish Naturalist for November is a list of Diptera taken 
in the Isle of Bute by Mr. Percy H. Grimshaw, of the Royal Scottish 
Museum, in the spring of 1917. Ten species are new records for the 
Clyde faunal area. 
Two additions to the List of British Hemiptera-Heteroptera are 
announced in the Ant. Mo. May. for November, by Mr. EH. A. Butler, 
viz., Orthotylus virens, taken in Cumberland by Messrs. Day and Murray 
on sallow and alder, and Acalypta platychila, taken at Brandon some 
years ago by Mr. Harwood. Both are generally distributed continental 
species. 
The Canadian Entomologist for November contains an interesting 
and useful article by Harry B. Weiss, on the ‘Graphic Presentations 
of Entomological Facts.” He says, ‘‘ Much time and money is ex- 
pended in the collection of entomological data, and unless this material 
be presented in a clear and interesting manner, the maximum amount 
of benefit will not be secured.’ ‘‘ Many readers, when they arrive ata 
page containing detailed information in the form of printed tables .. . 
are inclined to pass hurriedly over this part and seek a summary if one 
is to be found.” ‘Not only is time saved for the reader by graphic 
presentations, but the facts are put before him in such a manner that 
they appeal to him more strongly, he remembers them beiter, and it is 
less possible for him to draw wrong conclusions when quantitative facts 
are placed before him in accurate proportions.’’ The writer urges that 
