PLATE XVIII. 
SiPHONOPHORA RUBi. (Page 140.) 
Fig. 1.-— Winged male, showing the characteristic 
voluminous wings and attenuated abdomen of the 
insect. 
Fig. 2. — Apterous oviparous female, which has de- 
posited two eggs. Several ova in various stages of 
development may be seen through the transparent 
skin of the abdomen. Numerous oil-globules are con- 
gregated round the bases of the nectaries. 
Fig. 3. — Enlarged view of the cornicle of the ovi- 
parous female. 
