. A manual for the study of insects. Insects. CHAPTER XVIL Order Trichoptera (Tri-chop'te-ra)c The Caddice-flies or Caddice-worms, The members of this order have four wings; these are membranous^ furnished with numerous longitudinal veins but with only few cross veins, and are more or less densely clothed with hairs. The mouth-parts are rudimentary. The meta^ morphosis is complete. The Caddice-flies are moth-like insects which are com- mon in the vicinity of streams, ponds, and lakes; and they are also frequently attracted to lights at night. The body-wall of these insects is soft, being membr
. A manual for the study of insects. Insects. CHAPTER XVIL Order Trichoptera (Tri-chop'te-ra)c The Caddice-flies or Caddice-worms, The members of this order have four wings; these are membranous^ furnished with numerous longitudinal veins but with only few cross veins, and are more or less densely clothed with hairs. The mouth-parts are rudimentary. The meta^ morphosis is complete. The Caddice-flies are moth-like insects which are com- mon in the vicinity of streams, ponds, and lakes; and they are also frequently attracted to lights at night. The body-wall of these insects is soft, being membran- ous or at the most parchment-like, and is thickly clothed with hairs. There are usually four ample wings. These are membranous ; but the fore pair are more leathery than the hind pair. When not in use they are folded against the sides of the abdomen, in an almost vertical position, and give the insect a narrow and elongated appearance (Fig. 225). The wings are more or less densely clothed with hairs; and in some cases the hairs are scale-like in form. The hind wings are usually broader than the fore wings, and are often longitudi- FiG. .. ^^^jj^ f^j^^j j^^ repose. All have nu- merous longitudinal veins, but the cross veins are few. The name of the order is from two Greek words: thrix, a hair; and pteron, a wing. The order includes only a single farnily, the PhryganeidcB. 186. 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 Comstock, John Henry, 1849-1931; Comstock, Anna Botsford, 1854-1930. joint author. Ithaca, N. Y. , Comstock Pub. Co.
Size: 2727px × 916px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
