Transactions - Ottawa Field-Naturalists' Club Volume 1-2; no. 4 - Softcover
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1880 Excerpt: ...points in the life of the larvse, many species of which do not confine their ravages to old and dead trees but are found destroying those still living and thriving. The larvse of these beetles may be readilyrecognized by the broad flattened segments immediately behind the head; the rest of the body being narrow, thus giving them some resemblance to a tadpole. Commencing life as minute, footless grubs they bore crooked passages between the bark and wood; gradually, as they acquire strength and size, they sink sloping: and winding tunnels through the sapwood to some depth below the surface, and when nearing maturity again work upward to the bark and undergo their metamorphoses in the end of the burrow, finally eating through the bark and emerging as brilliant beetles. I have found in pine stumps a large larva evidently belonging to one of the three species already described, between the laivse of which there can be but little difference either in size or shape. Last summer I made drawings and measurements of one, which I unsuccessfully attempted to rear. It was two and four-tenth inches long and four tenths of an inch across the widest segment, narrowing afterwards to half this width. These larvse, in common with those of the other beetles to be mentioned this evening are footless, and move forward in theirburrows by muscular expansion and contraction of the segments of their bodies. Entomologists are at variance as to the time passed by these beetles in thelarval state; some thinking that they only spend one year as grubs, and others allowing twice as long. It is only certainly known in the case of a few species, and varies greatly for different genera. My observations made during several seasons seem to establish the fact that the members of the genus Chalc...
"synopsis" may belong to another edition of this title.
- PublisherRareBooksClub.com
- Publication date2012
- ISBN 10 1153189038
- ISBN 13 9781153189033
- BindingPaperback
- Number of pages84
(No Available Copies)
Search Books: Create a WantIf you know the book but cannot find it on AbeBooks, we can automatically search for it on your behalf as new inventory is added. If it is added to AbeBooks by one of our member booksellers, we will notify you!
Create a Want