. A manual for the study of insects. Insects. nii+i+3. Vila vn. 1111+2+3 The larvae are gregarious, and live in fungi and in decay- ing vegetable matter. They may be found in the fungi growing on logs and trees, in the- vegeta- ^==rg^ ^——. m.,^ ble mould among dead leaves, under bark, and sometimes in cow-dung. They have eight pairs of spiracles. One spe- cies, Sciara malt (Sci'a-ra ma'li), feeds on ripe apples, es- pecially those that have been previously perforated by the Codlin-moth. In this family the larva has a distinct head. The pupa is not enclosed in the skin of the larva; hnf- in cio
. A manual for the study of insects. Insects. nii+i+3. Vila vn. 1111+2+3 The larvae are gregarious, and live in fungi and in decay- ing vegetable matter. They may be found in the fungi growing on logs and trees, in the- vegeta- ^==rg^ ^——. m.,^ ble mould among dead leaves, under bark, and sometimes in cow-dung. They have eight pairs of spiracles. One spe- cies, Sciara malt (Sci'a-ra ma'li), feeds on ripe apples, es- pecially those that have been previously perforated by the Codlin-moth. In this family the larva has a distinct head. The pupa is not enclosed in the skin of the larva; hnf- in ciomf^ crpnpra Fig. 520.—Win^s of fungus-gnats. (The drawings are out m some genera after Winnertz ; the littering is original.) the transformations are undergone in a delicate cocoon. The larvae of some species of the genus Sciara often attract attention on account of a strange habit they have of sticking together in dense patches. Such assemblages of larvae are frequently found under the bark of trees. But what is mdre remarkable is the fact that when the larvae are about to change to pupae an assemblage of this kind will march over the surface of the ground, presenting the appear- ance of a serpent-like animal. Such a congregation is com- monly spoken of as a Sciara-army-worm. Examples have been described that were four or five inches wide and ten or twelve feet long, and in which the larvae were piled up from. 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: 2669px × 937px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
