05.06.2013 Views

Download - Free EBooks Library

Download - Free EBooks Library

Download - Free EBooks Library

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

TEACHERS' MANUAL. 25<br />

Orthoptera.<br />

Q.—Name some typical insects of the Order Orthoptera ?<br />

A.—Grasshoppers, Crickets, Katydids and Earwigs.<br />

Q.—How many wings have Grasshoppers, Crickets, etc.?<br />

A.—Four wings.<br />

Q.—Describe the texture, folding, etc., of the wings ?<br />

A.—The fore-wings are thickened or parchment-like, and<br />

overlap each other on the back. The hind wings are thinner,<br />

and when at rest are folded up lengthwise like a fan, and are<br />

nearly concealed beneath the anterior pair.<br />

Q.—Are all the insects of this Order provided with wings ?<br />

A.—No ; in a few species one or both pairs are wanting.<br />

Q.—Are the transformations of the insects of this Order<br />

complete ? A.—No ; they are incomplete.<br />

Q.—Are the insects belonging to the Order Orthoptera injurious<br />

? A.—All are more or less injurious excepting the<br />

Mautis family.<br />

Q.—What similarity of characters are there between the<br />

Earwigs of this Order and the Rove Beetles of the Order<br />

Coleoptera ? A.—The fore-wings of each meet in a straight line<br />

on the back.<br />

Q.—How are they distinguished from each other ? A.—By<br />

the promiaent anal forceps with which the Earwigs are provided.<br />

(See Fig. 41, c.)<br />

Q.—Name the illustrations which have been given of typical<br />

insects of this Order in this and preceding chapters ? A.—Fig.<br />

21, Jumping Tree-cricket; Fig. 41, a, the Earwig ; Fig. 141,<br />

the Katydid, and Fig. 142, the Praying Mantis.<br />

Neuroptera.<br />

Q.—Name some insects belonging to the Order Neuroptera ?<br />

A.—Dragon Flies, May Flies, White Ants and Lace-winged<br />

Flies.<br />

3

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!