BIOLOGY OF THE TEEMITES OF THE EASTERN UNITED STATES. 29 
species can be differentiated. The soldiers, like the workers, are 
wingless and blind. Individuals of both castes complete their devel- 
opment in less than a year. 
The nymphs of the reproductive form develop from larvae that will 
mature the sexual organs. The term "nymph" is applicable, 
V, ^ 
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according to Lespes and Hagen, to individuals "with the wing- 
rudiments easily distinguishable to the naked eye." a Individuals 
the wing-rudiments of which are present, but only distinguishable 
are termed larvae. Nymphs are white 
when under magnification, 
a Grassi, B., and Sandias, A. Op. cit., p. 264. 
