. A manual for the study of insects. Insects. CHAPTER V. Order EPHEMERIDA (Eph-e-mer'i-da). The May-flies. The members of this order have delicate membranous wings^ with a fine network of veins; the fore wings are large,.and the hind wings are much smaller or wa7tting. The mouth- parts are rudimentary. The metamorphosis is incomplete. The name of this order is from the Greek word ephemeros, lasting but a day. It was given to these in- sects on account of the shortness of their lives after reaching the adult state.* The May-flies are easily dis- tinguished from other net-winged in- sects by the
. A manual for the study of insects. Insects. CHAPTER V. Order EPHEMERIDA (Eph-e-mer'i-da). The May-flies. The members of this order have delicate membranous wings^ with a fine network of veins; the fore wings are large,.and the hind wings are much smaller or wa7tting. The mouth- parts are rudimentary. The metamorphosis is incomplete. The name of this order is from the Greek word ephemeros, lasting but a day. It was given to these in- sects on account of the shortness of their lives after reaching the adult state.* The May-flies are easily dis- tinguished from other net-winged in- sects by the peculiar shape of the wings and the relative sizes of the two pairs (Fig. 94). The mouth-parts are nearly want- ing, as these insects eat nothing in the adult state ; the antennae are very small; the abdomen is long, soft, and terminated by two or three many- jointed, thread-like appendages. In their metamorphoses these insects differ from all others in molting once after they have acquired wings fitted for flight. This order includes only a single family. *We have not adopted the name Plectoptera, which has been proposed for these insects, on account of its similarity to Plecoptera. 86. 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: 1214px × 2057px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
