The Sycamore Lace-Bug 9 



isolated as soon as hatched on very small sycamores grown in 

 flowerpots where a careful check could be kept on them. 



Females from this first generation were observed to lay their 

 first eggs the eighth clay following maturity, thus making the time, 

 from egg to egg, forty-three to forty-five days with temperature 

 and humidity approximating summer conditions. 



DESCRIPTIONS OF THE DIFFERENT STAGES 

 The Adult 



Length 3 to 3.75 mm.; width 1.56 to 2 mm. Its shape is 

 roughly oblong-oval, and distinctly flattened dorso-venterally. 

 The elytra (wing covers) and pronotum, or the part between the 

 head and base of wings, are dilated laterally forming a much 

 broadened, gauze or lace-like covering over the body of the in- 

 sect. This gives a unique and characteristic appearance which 

 serves to identify all members of this group. 



The pronotum is produced anteriorly into an inflated bulbous- 

 like hood which covers the head. The outer margin of the prono- 



Figure 3 Corythucha ciliota, Say: a, adult; b, side view of hood and median carina, 



(original) 



