. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). 4. Order Odonata. The members of this order, the Dragon-flies, are elongated forms with two pairs of nearly equal, abundantly-veined winj,'s of usually large size, all the forms being excellent fliers and seeking their prey in the air. The head is united to the thorax by a narrow stalk which permits extensive rotation of the head, and the abdomen, terminating in two unsegmeuted platelike cerci, is long, and in the large Dragon-flies, jEsvhim and Diplax (Fig. 235), and i
. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). 4. Order Odonata. The members of this order, the Dragon-flies, are elongated forms with two pairs of nearly equal, abundantly-veined winj,'s of usually large size, all the forms being excellent fliers and seeking their prey in the air. The head is united to the thorax by a narrow stalk which permits extensive rotation of the head, and the abdomen, terminating in two unsegmeuted platelike cerci, is long, and in the large Dragon-flies, jEsvhim and Diplax (Fig. 235), and in the brightly-colored Agrio7i very slender, though somewhat stouter in the genus LihelMa. Tlie anteuntB are very small and the mouth-parts adapted for bitiiip, while the legs are slender, the anterior pair being directed somewhat forwards so as to serve for grasping the prey. The lateral compound eyes are very large, meeting on the dorsum of the head, and in front of them are situ- ated a pair of small ocelli. The larv8B are aquiitic and are characterized by the remarkable develoj)- ment of the labium, wliicli is very much enlarged, terminating iu two power- Fia. i'in.—Diplax elisa (from Packahd). £jj| j^^yj^ j^^j provided witli a hiugo, 30 tliat it can be flexed so as to lie beneath the In:!! or suddenly thrust out to capture the unwary prey. This. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original McMurrich, J. Playfair (James Playfair), 1859-1939. New York : H. Holt
Size: 1987px × 1258px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1896
