This is a meadow species, Inn it has not been round abundant in this region of Cranberry Lake.
Occasionally found in abundance on low-ground grasses and in S01110 eases possibly suffivieffily to be serious. y Lake.
July 6, 1917; Aug. 1. 1917,8, 1920.
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, July 6, 7, 1917; Aug. 4, 1919. Wanakena. Aug. 1-7, 1917. Plains. Aug. 3, 1920.
Empoasca atrolabes A very abundant widely distributed species on Alder. Also taken on at Ranger School, July 15, 1920. Cranberry Lake and Barber Point, July 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. 8, 1917; July 8, 1919; July 8, 1920. Wanakena, July 29, 1920, on white pine in virgin forest.
Empoasca flavescens (Fabricius).
A very widely distributed species in Europe and U. S., especially through southern states. Our specimens were taken at Wanakena (Ranger School), Aug. 12, 1920, in sweeping brush along trail.
Empoasca birdii Goding.
Has been taken but rarely and its association has not been definitely placed. Cranberry Lake, July 5, 1917: 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. Wanakena, Aug. 1-7, 1917; July 29, 1920 (abundant in deep woods).
Eupteryx nigra Osborn.
This form has been merged as a variety under flacoseuta by McAfee and there are fairly good forms but it is pos sible to find 'quite as complete intergradations with vanduzei; both forms seem to have well marked differences in habitat but not in host plant. Wanakena, July 29, 1920, in deep wood on fern
associations.
Typhlocyba querci (Fiteh).
This species was described from oak, lint it has a wide variety of host plants and in this region it must survive entirely on other species as the oaks are absent. It is sufficiently abundant to cause a definite drain upon the trees affected and does not seem to have any close limitations and habitat as it may be taken at various levels on birch and other trees. Cranberry Lake, July 25, 1917; July 10, 1920. AVanakena, Aug. 1-7, 1917 ; July 15, 29, 1920.
Typhlocyba querci var. bifasciata Gillette and Baker.
This variety, like the previous species, appears to have a wide range of food plants but has been noted as even more abundant than the species above. Cranberry Lake, Aug.. 1, 1919; July 2, 25, 1920 (adult) ; Aug. 13, 1920. Wanakenn, Aug. 1-7, 1917.
Ty phlocyba lethierryi Edwards.
This has been taken only twice and is probably quite rare. Cranberry Lake, Barber Point, Aug. 5, 1920. Wanakena, July 29, 1920. One specimen (Wanakena), probably to be placed here, has distinct black dot on inner cross nervure.
Typhlocyba tenerrima (llerrich-Scleffer).
Very rare, as only a very few specimens have been found, but these have been collected in the woodland associations, generally where there is considerable moisture. Cranberry Lake, July 25, 1917; July 12, 1920. Wanakena, Aug. 1-7, 1917.
Typhlocyba rosae (Linnaeus).
This is a very abundant species on roses throughout the country; it occurs in this region on different forest trees but never in great abundance. The species is apparently capable of living in varied conditions although limited to thickets or woodlands where it has both shade and moisture. Barber Point, Aug. 13, 1920. Plains, Ang. 3, 1920.
Typhlocyba comes var. comes (Say).
Taken only rarely and then from trees along tote-roads. Barber Point, Aug. 5, 1920.
Typhlocyba comes (Say) var.
Cranberry Lake, July 18, 1917. Typhlocyba commissuralis.
Cranberry Lake, July 30, 1920.
Typhlocyba obliqua (Say).
This species has been taken from a variety of trees but the nymphal stage has been observed only on fire cherry, which may be considered as at least one of its host plants. It is hardly abundant enough to be counted of much importance. Cranberry Lake, Aug. 1, 1917. Wanakena, Aug. 1-7, 1917; Aug. 12, 1920. Plains, Aug. 3, 1920.
Typhocyba obliqua var. noevus Gillette. Wanakena, Aug. 1-7, 1917.
Typhocyba obliqua car.
Cranberry Lake, June 9, 1920.