196 W. D. FUNKHOUSER 



Smiliinae (concluded) : 



45. Cyrtolobus cindus VanD. (p. 273) 



46. Cyrtolobus vau Say (p. 274) 



47. Cyrtolobus intermedius Emm. (p. 275) 



48. Cyrtolobus cinereus Emm. (p. 276) 



49. Cyrtolobus fuscipennis VanD. (p. 276) 



50. Atymna castaneae Fitch (p. 277) 



51. Atymna querci Fitch (p. 279) 



52. Atymna inornata Say (p. 280) 



53. Xantholobus trilineatus Say (p. 281) 



54. Xantholobus lateralis VanD. (p. 281) 



55. Ophiderma salamandra Fairm. (p. 284) 



56. Ophiderma pubescens Emm. (p. 285) 



57. Ophiderma flavicephala Godg. (p. 286) 



58. Ophiderma flava Godg. (p. 286) 



59. Vanduzea arquata Say (p. 287) 



60. Entylia bactriana Germ. (p. 289) 



61. Publilia concava Say (p. 291) 



One or two of the above are known only from single specimens taken a 

 number of years ago and never recorded since, but they are included so 

 that the list may be entirely complete. The original records are doubtless 

 authentic and the specimens are in the Cornell University collection. 



DISTRIBUTION AND RANGE OF THE FAMILY 



The representatives of the Membracidae have not been taken uniformly 

 thruout the basin and are much more nvmierous in some localities than in 

 others. They are more abundant on the east side of the lake than on the 

 west, and far more plentiful in the southern part of the valley than in the 

 northern. This is due chiefly to the fact that the areas in question are not 

 uniformly wooded with plants which are favored by membracids as hosts, 

 and the fact that geographical conditions, and variations in amount of 

 heat and of sunlight, are not the same in all localities. The species of 

 Membracidae are sun-loving insects, and, as will be shown, are quite sus- 

 ceptible to environmental conditions. Moreover they are very dependent 

 on particular food-plants and seldom if ever change their hosts. 



Certain areas thruout the basin have been arbitrarily designated as 

 stations (fig. 38). These are in some cases rather indefinitely bounded, 



