1130 The American Naturalist. [December, 
form. A queen 19 mm. long, which weighed about 0.2 grammes, 
is equal in weight to fifteen supplementary females. The ovaries 
of all the thirty-one supplementary females may together scarcely 
weigh as much, and furnish hardly as many eggs, as those of à 
single older queen. 
Lespes and Dr. Hagen also found male nymphz with short 
wing beginnings, so the king may probably just as well be 
substituted by supplementary males as the queen by supple- 
mentary females. Does such a substitution take place in a nest 
at the same time for both sexes? out of those eggs of the sup- 
plementary females fertilized by the supplementary males 
develop all forms which compose the Termite population? or are 
only workers and soldiers ; and are, of all species, in all colonies, 
regularly each year, nymphe with short wing beginnings 
produced ? 
These are questions which I cannot answer now with certainty. 
The exact solution may require observations continued for years. 
Supplement.—Bates, Lespes, and also myself found the youngest 
larve of the different classes occurring in the Termite family 
undistinguishable. 
Before they reach half the length gr the grown-up worker, 
they separate themselves by the first indication of the wing- 
cases. 
From the larve of the later, able to become reproducing animals, 
those of the soldiers and workers are distinguished by their 
thicker heads, as also in Termes saliens and others. 
Only a short time before the last moulting are the larvae of the 
soldiers distinguishable from those of the workers, however differ- 
ent both may be in grown-up condition. A single exception 
only has been observed by Bonifit of a soldier which was so small 
that it as such seemed to have left the egg. 
If the difference in sexes is not taken into consideration, that 
of the two-fold forms of the workers and soldiers which seems to - 
occur with some species, may be expressed in the following state- 
ment which is made for the Termite states (or colonies) of the 
species Termes and Eutermes. 
