. Economic entomology. Beneficial insects; Insect pests; Thysanura. 26 SCOLOPENDRID^. CASE poison, and the degree of injury inflicted by it, may depend much on the circumstance, whether or not the animal has recently bitten and expended its venom on some other object, in which case, the injury occasioned is less severe; and, the reason is obvious, for not only may the reservoir of venom be exhausted, but it may also be satisfactorily accounted for by what we now know of the manner in which the secretions of all glands are elaborated, viz., by the growth, bursting, and diffluence of successive
. Economic entomology. Beneficial insects; Insect pests; Thysanura. 26 SCOLOPENDRID^. CASE poison, and the degree of injury inflicted by it, may depend much on the circumstance, whether or not the animal has recently bitten and expended its venom on some other object, in which case, the injury occasioned is less severe; and, the reason is obvious, for not only may the reservoir of venom be exhausted, but it may also be satisfactorily accounted for by what we now know of the manner in which the secretions of all glands are elaborated, viz., by the growth, bursting, and diffluence of successive series of epithelial cells that line the interior of these organs, the fluid contained within, and into which these cells and their nucleoli are resolved being the proper secretion. When this is expended too frequently, and the organ in consequence is excited by what may be called the stimulus of want, the secreting epithelial cells are hastened in their development, and the fluid into which they are resolved is imperfectly elaborated and its properties are doubtless less active. No. 7. ScoLOPENDRA CEYLONENSis {).—7. Specimens (2). This is one of the larger Centipeds above spoken of. They are probably all to be equally avoided. It is from Ceylon. No. 8. ScoLOPENDRA PLATYPOIDES {Newp.).—8. Specimens (2). Another large and hurtful species. It is from Brazil. No. 9. SCOLOPENDRA PLACE.^ {Newp.).—^. Specimens (2). From Brazil. No. ID. ScoLOPENDRA VARIEGATA {Newp.).—Vi. Specimens (2). A handsome species from Scolopendra variegata (natural size).. 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 Murray, Andrew, 1812-1878. [London] Chapman and Hall
Size: 3198px × 782px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookpublisherlondonchapmanandha
