1885.] Zoology. 809 
Agriculture, consist of descriptions of North American Chalci- 
didz from the collections of the U. S. Department of Agricul- 
ture and of Dr. C. V. Riley, with biological notes, together with 
a list of the described North American species of the family, by 
L. O. Howard. This paper will be followed by others, and will 
prove of great service to entomologists. It appears from the 
observations of C. Aurivillius, reported in the Entomologists’ 
Monthly Magazine for May, that Gets bore, an arctic butterfly, 
requires two or more summers to complete its transformations; 
also that humble bees probably require more than one summer to 
mature. At the meeting of the Entomological Society of 
London, held April 1st, Mr. R. M. Christy exhibited a drawing 
of the larve of the local form of Platysamia columbia, known as 
Nokomis; he had found the larva in Canada feeding on Eleag- 
nus argentea, the peculiar silvery appearance of which was strik- 
ingly in accord with the color of the larva, which latter was 
probably protected thereby. At a sale of beetles in London a 
pair of Goliathus giganteus realized £10 10s. 6d., and a pair of G. 
albosignatus £7 108.; a pair of Rhetus westwoodii sold for 48, 
and a pair of Rhetulus crenatus sold for £2 10s. 
ZOOLOGY. 
SENSE OF COLOR AND OF BRIGHTNESS IN ANIMALS.—J. Graber 
has investigated the sense of color and of illumination in animals. 
To decide whether animals had a sense of light or of color he 
placed them in a box so arranged that qualitative and quantitative 
rays fell on one or other of its two divisions, which communi- 
rep- 
