94 
Dragon-flies and Damsel-flies 
ish brown. The males have the space between these blotches milky white. 
In old individuals the abdomen has a strong whitish bloom. Other familiar 
Fig. 125. —The ten-spot dragon-fly, Libellula pulchella. (After Needham; nat.. size.) 
and well-marked species of Libellula are L. basalis, with blackish-brown body 
and with the basal third to half of the wings dark brown or black and the 
rest of the wing clear, or in the old males chalky white out as far as the 
Fig. 126. —Libellula semi-fasciata. (After Needham; natural size.) 
pterostigma, and in the females with brownish apices; L. quadrimaculata , 
with olive or yellowish body marked with black, front wings with more 
