Elementary Entomology
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In our eReader you can find the full English version of the book. Read Elementary Entomology Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Elementary Entomology
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189. A water-scavenger beetle with wing-covers and wings expanded as when in flight. (Natural size) (After Folsom) order its scientific name, from coleos (a sheath) and pteron (a wing). The beetles form one of the largest orders, with over twelve thousand species in America north of Mexico, belonging to some eighty families, only the most common of which will be mentioned. They have a complete metamorphosis, the larvae being commonly called grubs, and the pupae are usually found either in the g...round 136 THE BEETLES 137 or in the foodstuff of the larvae. Both larvae and adults have biting mouth-parts, similar to those of the grasshopper, the structure vary- ing with the food habits of the species.
The families of beetles are divided into several groups, based largely on the structure of the tarsi and antennae, which aid the student in their identification. The order is primarily divided into the typical beetles (Coleoptera genuine?) y in which the head is nor- mal, and the snout-beetles (Rhynchophora), in which the head is prolonged into a snout, or beak, at the tip of which are the biting mouth-parts.
What to read after Elementary Entomology?
You can find similar books in the "Read Also" column, or choose other free books by Ezra Dwight Sanderson to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
189. A water-scavenger beetle with wing-covers and wings expanded as when in flight. (Natural size) (After Folsom) order its scientific name, from coleos (a sheath) and pteron (a wing). The beetles form one of the largest orders, with over twelve thousand species in America north of Mexico, belonging to some eighty families, only the most common of which will be mentioned. They have a complete metamorphosis, the larvae being commonly called grubs, and the pupae are usually found either in the g...round 136 THE BEETLES 137 or in the foodstuff of the larvae. Both larvae and adults have biting mouth-parts, similar to those of the grasshopper, the structure vary- ing with the food habits of the species.
The families of beetles are divided into several groups, based largely on the structure of the tarsi and antennae, which aid the student in their identification. The order is primarily divided into the typical beetles (Coleoptera genuine?) y in which the head is nor- mal, and the snout-beetles (Rhynchophora), in which the head is prolonged into a snout, or beak, at the tip of which are the biting mouth-parts.
What to read after Elementary Entomology?
You can find similar books in the "Read Also" column, or choose other free books by Ezra Dwight Sanderson to read onlineMoreLess
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