NOTES ON SOME ONTARIO ACRIDIIDÆ.—Part III

1899 ◽  
Vol 31 (2) ◽  
pp. 29-36 ◽  
Author(s):  
E. M. Walker

20. Schistocerca americana, Drury.Gryllus americanus, Drury, Illustr. Nat. Hist., app. (1773).Acridium americanum, Scudd. Mat. Mon. N. A. Orth., 466 (1862).Schistocerca americana, Blatchley. Can. Ent., XXIII., 79 (1891).This large and beautiful locust has been twice reported from Ontario, at London, (Can. Ent., XXVII., p. 52), and at Toronto(Can. Ent., XXIX., p. 89), a single example being taken in each instance. These were probably wanderers from the South, certainly in the case of the Toronto specimen, and the insect can hardly be regarded as a native of our Province, though it may be established in the extreme southern portion.

1899 ◽  
Vol 31 (2) ◽  
pp. 28-28
Author(s):  
F. M. Webster

At Wooster, Ohio, this species was observed in the fieds on May 26, and at Alliance, nearly due east, on October 24, while at Bridgeport, in the extreme eastern central part of the State, it was found, active, on November 4, all during 1898. It appears to have been more numerous of late in the vicinity of the south shore of Lake Erie than elsewhere in the northern portion of the State, and more abundant than I have formerly observed it in the same latitude in Indiana and Illinois.


1962 ◽  
Vol 24 (2) ◽  
pp. 303-322 ◽  
Author(s):  
Bernard Cosman
Keyword(s):  

2000 ◽  
Vol 179 ◽  
pp. 201-204
Author(s):  
Vojtech Rušin ◽  
Milan Minarovjech ◽  
Milan Rybanský

AbstractLong-term cyclic variations in the distribution of prominences and intensities of green (530.3 nm) and red (637.4 nm) coronal emission lines over solar cycles 18–23 are presented. Polar prominence branches will reach the poles at different epochs in cycle 23: the north branch at the beginning in 2002 and the south branch a year later (2003), respectively. The local maxima of intensities in the green line show both poleward- and equatorward-migrating branches. The poleward branches will reach the poles around cycle maxima like prominences, while the equatorward branches show a duration of 18 years and will end in cycle minima (2007). The red corona shows mostly equatorward branches. The possibility that these branches begin to develop at high latitudes in the preceding cycles cannot be excluded.


2014 ◽  
Author(s):  
John Narborough ◽  
Abel Tasman ◽  
John Wood ◽  
Friderich Martens
Keyword(s):  

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