Anatomy, Physiology, Morphology, and Development of the Blow-fly (Calliphora erythrocephala)

Abstract

THE general features of this study in insect anatomy have already been noticed (NATURE, vol. xliii. p. 77). Part II. describes the exoskeleton in considerable detail, and contains many useful and elaborate figures. Plate v. and the accompanying explanations give the author's views upon the morphology of the insect-head. The pre-oral part he regards as developed from three bladder-like swellings, to which correspond three primary divisions of the cephalic nerve-centres. The post-oral part is supposed to arise by the fusion of three jaw-bearing segments. The terminal portion of the proboscis is probably developed, according to Mr. Lowne, from the first, and not from the second pair of maxillæ. The de scription of the mouth-parts is very full, and the figures are extremely good.

Anatomy, Physiology, Morphology, and Development of the Blow-fly (Calliphora erythrocephala).

Part II. By B. Thompson Lowne, &c. (London: R. H. Porter, 1891.)