409> 



The averages for this species are 1 foot, 4 inches in the sunhght and 

 7 feet in the shade. Individuals which had climbed three or four 

 feet in the shade after being moved to the sunlight, continued only a 

 few inches more and then flew off. Of the three species, Megilla fus- 

 cilabris was the most active, being seemingly possessed of a nervous 

 irritability. 



All of the beetles were handled as little as possible and used only 

 once. 



The tables show that the length of time and especially the distance 

 covered, were considerably shortened when the re-actions took place 

 in sunlight and while the temperature was higher, yet beetles moved 

 from the shade to sunlight flew away almost before they could have 

 become sensible to the higher temperature. 



Plant hce of course are usually found in shaded situations such as 

 the undersides of leaves and Coccinellidse undoubtedly hunt longer 

 and over a greater distance in such situations. 



It seems fair to conclude then, that other factors being equal, sun- 

 light and possibly high temperatures shorten the distance covered 

 during a geotropic response and also the time during which the beetle 

 responds to such stimuli, thereby giving the beetle a greater chance 

 to find food. Sunlight does not, however, influence the direction of 

 locomotion or the negative geotropic position assumed by the beetle. 



NOTES ON GYPONA OCTOLINEATA SAY 



(Hemiptera, Jassidse) 

 By R. L. Webster 



Not much concerning this common leaf-hopper, sometimes known 

 as the "eight lined Gypona," appears in entomological literature. 

 Outside of some observations by Fitch (1867) and later by Osborn 

 and Ball (1897), very little has been written. While of no great eco- 

 nomic importance, this species, with other leaf-hoppers, no doubt 

 causes considerable injury in grass lands, as suggested by Osborn and 



