xlviil 
Hill, N. 16; Mr. H. M. Sos, B.Sc., The Farlands, Stour- 
bridge; Mr. H. H. Wattis, M.A., 145, Wilmer Road, 
Heaton Road, Bradford; Mr. F. Ruopes, 113, Park Row, 
Heaton Road, Bradford; and the Rev. G. Warxrnson, M.A., 
Woodfield, Hipperholme, nr. Halifax. 
Exhibitions. 
Remarking on early emergences this season, Mr. EK. E. GREEN 
said that— 
‘An unusually early appearance, this year, was a freshly 
emerged specimen of Xanthorrhoé fluctuata, which came in to 
light on the 12th March. 
“ With regard to the debated question of the hibernation 
of Pyrameis atalanta, it may be of interest to note that a 
very worn specimen was observed by me here (at Camberley), 
feeding at sallow blossom, on the 17th March.” 
Insects oF TropicaL AmeERIcA.—Mr. C. B. Witiiams 
exhibited (1) a Lamellicorn beetle from Trinidad, B.W.L., 
and a photograph of a dining-table during the swarming of 
this species in the wet season. Two or three hundred beetles 
had been attracted by the light above the table. 
(2) Specimens of the Cercopid, Tomaspis saccharina, very 
injurious to sugar-cane in Trinidad, B.W.I. This insect is 
dependent on soil condition to a remarkable degree, and its 
regular prevalence in any area is an indication of a heavy 
clay soil. The chief injury done by the insect is to the leaves 
of the cane, and a discoloured streak is formed from each 
puncture of the insect, which continues to increase in size 
for several weeks after the puncture is made. 
(3) A burrowing wasp, Monedula sp., which collects and 
stores up bloodsucking flies (Tabanidae) in British Guiana. 
Commenting on this exhibit Mr. Williams drew attention 
to a habit of most of the burrowing wasps and mud-wasps 
in Trinidad and British Guiana. This is a shrill buzzing 
during the act of digging or of spreading mud. The only 
plausible explanation of this habit, which draws attention 
to the nests, seems to be that the jaws of the insect work 
rapidly in a series of small pressures instead of a steady 
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