 | 1922 - 1018 páginas
...include the period from about the middle of September till the middle of November, while summer comprises the months of July and August and the early part of September. Tbe coldest period is from the middle of January till towards the end of February. In the winter of... | |
 | Thaddeus William Harris, Massachusetts. Zoological and Botanical Survey - 1841 - 484 páginas
...hind-body is somewhat flattened, rather widest behind, and ends with a conical horn. His hind-legs are flattened, much wider than those of the female,...eggs, while swarms of the males hovered around them. Within a year or two, some large button-wood trees, in Cambridge, have been visited by them in the... | |
 | Thaddeus William Harris - 1862 - 700 páginas
...resort for the Tremex Columba, or pigeon Tremex ; and around it great numbers of the insects were ofien collected, during the months of July and August, and...while swarms of the males hovered around them. For fifieen years or more, some large buttonwood-trees in Cambridge have been visited by them in the same... | |
 | Entomological Society of Ontario - 1872 - 416 páginas
...to two inches or more. " An old elm tree in this vicinity (Cambridge, Mass.) used to be a favourite place of resort for the Tremex columba, or Pigeon...frequently be seen at once upon it, employed in boring the trunk and laying their eggs, while swarms of males hovered around them. For fifteen years or more,... | |
 | Edward John Tilt - 1875 - 156 páginas
...extend beyond lat. 24° 44', and therefore the nothern parts of Hindustan have the dryest climate. During the months of July and August, and the early part of September — the rainy season in the southern part of India — the atmosphere in the north is generally clouded,... | |
 | Ontario. Legislative Assembly - 1877 - 698 páginas
...to two inches or more. " An old elm tree in this vicinity (Cambridge, Mass.) used to be a favourite place of resort for the Tremex columba, or Pigeon...of July and August and the early part of September. Sir or more females might frequently be seen at once upon it, employed in boring the trunk and laying... | |
 | sir William James Moore - 1877 - 640 páginas
...extend beyond lat. 24° 44', and therefore the northern parts of Hindustan have the driest climate. During the months of July and August, and the early part of September — the rainy season in the southern part of India — the atmosphere in the north is generally clouded;... | |
 | Minnesota State Horticultural Society - 1878 - 148 páginas
...The development of this insect is somewhat irregular, and it may usually be found in all its stages during the months of July and August and the early part of September. The larvae of both these native species feed preferably upon cabbage, but also devour with apparent... | |
 | 1881 - 284 páginas
...of resort for this saw-fly, numbers of them collecting about it during the months of July, Angust, and the early part of September. "Six or more females might frequently be seen at onee upon it, employed in boring into the trunk and laying their eggs, while swarms of the males hovered... | |
 | United States Entomological Commission, Alpheus Spring Packard - 1890 - 1060 páginas
...favorite place of resort for this saw-fly, numbers of them collecting about it during the months of Jnly, August, and the early part of September. " Six or...around them. For fifteen years or more some large buttouwood trees in Cambridge have been visited by them in the same way." Prof. JA Lintner, State Entomologist... | |
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An old elm-tree in this vicinity used to be a favorite place of resort for the Tremex Columba, or pigeon Tremex; and around it great numbers of the insects were often collected, during the months of July and August, and the early part of September. Six... 
