Bul. 1223, U. S. Dept. of Agriculture. PLATE III. 
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E 
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f) 
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EUROPEAN ELM SCALE. 
A, Antenna of first-stage larva. B, Antenna of second-stage male larva. C, 
Antenna of 
second-stage female larva. D, Antenna of adult female. £, Quinquelocular type of pore. 
F, Trilocular type of pore. G, Circular pore and cross-section of internal communicating 
duct. H, Ventral view of tip of abdomen of adult female. J, Leg ol adult female. 
