Homopicra of Cranhcrry Lake Region 47 



Empoasca smaragdula (Fallen). 



A common species in woodland, especially on poplars and wil- 

 lows. Cranberry Lake and Barber Point, on poplar, July 3, 1920. 



Empoasca aureoviridis (Uhler). 



A very abundant form on willows and poplars, often so abun- 

 dant that it must cause a considerable loss in the growth of the 

 plant. Cranberry Lake, Julv 6, 7, 1917; Aug. 4, 1919. Wanakena, 

 Aug. 1-7, 1917.'^ Plains, Aug. 3, 1920. 



Empoasca atrolabes Gillette. 



A Yery abundant widely distributed species on Alder. Also 

 taken on CorijIu<; at Ranger School, July 15, 1920. Cranberry 

 Lake and Barber Point, July 25. 1917 ; July 15-30, 1920. Wana- 

 kena, Aug. 1-7, 1917. Plains, Aug. 3, 1920. 



Empoasca coccinea (Fitch). 



Very abundant on white pine and apparently limited to this 

 tree except as occasionally adults have been taken on other plants 

 in the same vicinity. Evidently of economic importance. Cran- 

 berry Lake, Aug. S", 1917 ; July 8, 1919 ; July 8, 1920. Wanakena, 

 July 29, 1920, on white pine in virgin forest. 



Empoasca flavescens (Fabricius). 



A very widelj' distributed species in Europe and U. S., especially 

 tlirough southern states. Our specimens were taken at Wanakena 

 (Ranger School), Aug. 12, 1920, in sweeping brush along trail. 



Empoasca birdii Coding. 



Has been taken but rarely and its association has not been 

 definitely placed. Cranberrj' Lake, July 5, 1917i 



Eupteryx vanduzei Gillette. 



Abundant on ferns, especially in shady woodland and a con- 

 spicuous member of the deep woods association ; it has not been 

 observed in more open land. Wanakena, Aug. 1-7, 1917 ; July 29, 

 1920 (deep woods on fern association). 



Eupteryx flavoscuta Gillette. 



Commonly taken by sweeping ferns either in low-land bogs or 

 hill forest and deep woods, undoubtedly^ feeding on fern. Cran- 

 berry Lake, July 20; Aug. 5, 1917; July 5, 1920. Plains, Aug. 3, 

 1920. AVanakena, Aug. 1-7, 1917; July 29, 1920 (abundant in 

 deep woods). 



Eupteryx nigra Osborn. 



This form has been merged as a variety under flavoscuta by 

 McAtee and there are fairly good connecting forms but it is pos- 

 sible to find quite as complete intergradations with vanduzei; both 



