hw re 
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“time for the eggs to hatch. It seems that is, for some pur- 
improvement over the one described by Mr. C. M. Packard in 
“news letter for rearing-Diabrotica, because one can examine 
ents without ‘any danger of the insects escaping. T. 8. WILSON. 
mse. 0. G, Kelly has returned to his field station at Well- 
Kans. 
— Philip Luginbill is spending some time in histological work 
Charlottesville, Va., laboratory. 
should like to ‘have collections made of all large green aphides, 
ame preserved in 70 per cent alcohol, and, where possible, brief ) 
notes given, as well as a complete data on host plants. J. Jd. 
































here possible to do so all uncopied notes on Macrosiphum pisi and 
ma nitida should be sent in for copying, especially notes relating 
Fibution, parasites, and hosts, since papers are being prepared 
of these species, 
is coming spring Lachnosterna beetles will be abundant in many 
Of the country and collections snould be made wherever possible. 
Not supplied with a copy of "Methods of Collecting May-beetles" 
Ure same by writing the office. Mr Schwarz, who has collected in 
ico and Arizona, tells us that beetles, including Lachnosterna 
nelus, etc., appear at the lights in July, at the beginning of the 
y Season. We have no Lachnosterna bestles from either of the above- 
oned States, and collections are highly desirable. 
It is very desirable that all field notes should state, specifical- 
whether or not specimens were preserved; whether pinned, slide 
Be or in alcohol; besides, the number of pinned specimens, slides, 
1s should be feted’, With this information on the note cards, 
Ll oftentimes climinate the necessity, on the part of those using 
motes, for searching through the office collections to determine 
s0int. Furthermore, it is always important in the case of insects 
iging to groups like the Aphididae, which are so confused and 
icult of determination, and most important of all, when the host 
& new one, or the locality unusual. However sure of the identity of 
scies the observer may be, he should always bear in mind that it 1s 
specimens that constitute absolute proof from which there is no ap- 
2, in case future question arises. 
"In conducting molting experiments with Laphygma frugiperda the 
ber has found that test tubes are a great deal more satisfactory, 
dent, and time-saving than small individual cages. The test tubes 
can be purchased from.Arthur H. Thomas Co., Philadelphia, and are 
ited in their Catalog F as #16922 "Non-Corrosive." They can be had 
Various sizes. The ones used by the writer were 150 mm. long and 
fe @ diameter of 20 mm. These test tubes are thick-walled and conse— 
Mmtly do not break very easily wien handled. Absorbent cotton was 
‘s to close the openings in the tubes; this absorted all the surplus 
ture which accumulated in the tubes. In case the food in the tubes 
same too dry the cotton was moistened with water. By the use of these 
bes the writer was able to run as many as fifty experiments at one Ciuc 
phout much trouble. Another advantage in using tubes rather than ind! 
1 os cages for such experiments is that they can all be packed togethe: 
rried by the observer in a small Case wherever he goes and can be 
