A. J. GrROVE 
15 
REFERENCES. 
Buckton, G. B. (1875-1882). A Monograph of British Aphides. Ray Society 
Publication. 
Grove, A. J. (1909). The Anatomy of Siphonophora rosarum, Walk., the ‘‘Green 
Fly” Pest of the Rose-Tree. Part I. The Apterous Viviparous Stage. 
Parasitology Vol. n., Pt. I. 
Packard, A. S. (1898). A Text-Book of Entomology. 
EXPLANATION OF PLATES I AND II. 
All drawings were made with the Camera Lucida unless otherwise stated. 
PLATE I. 
Fig. 1. The winged viviparous stage of Siphonophora rosarum. Dorsal view. ( x 21.) 
Fig. 2. The winged viviparous stage of S. rosarum. Ventral view. ( x 21.) 
Fig. 3. The eye, seen from the side. ( x 72.) 
Fig. 4. The third joint of the antenna, to show the curious tubercles scattered over its 
surface. (x72.) 
Fig. 5. The sixth joint of the antenna. ( x 100.) 
Fig. 6. Portions of the fifth and sixth joints of the antenna seen from below. ( x 233.) 
PLATE II. 
Fig. 1. Longitudinal section through the thorax to show the elevator muscles of the 
wings. (x 108.) 
Fig. 2. Transverse section through the thorax to show the arrangement of the wing 
muscles in the thoracic cavity. (x 108.) 
Fig. 3. The insertions of the elevator and depressor muscles of one side. ( x 152.) 
Fig. 4. The central nervous system as seen from above. (Semi-diagrammatic.) ( x 178.) 
Fig. 5. Transverse section across the antenna including one tubercle. (x 1050.) 
