. Insects affecting domestic animals [microform] : an account of the species of importance in North America, with mention of related forms occurring on other animals. Parasites; Insects, Injurious and beneficial; Animaux domestiques; Insectes nuisibles. l'"lo. !iO, — ('vti'rrbra cunieiiH: ndnlt; Rid .sliiiws iialiirni li'D^lli (original). line It will be noted that all the cases so far cited show the larva' to be mature in the latter part of suinnier or in fall, and in tin* specimen reared by Dr. Fitch pupation lasted through the winter and until the follow- iufj-July, which is quite ditl
. Insects affecting domestic animals [microform] : an account of the species of importance in North America, with mention of related forms occurring on other animals. Parasites; Insects, Injurious and beneficial; Animaux domestiques; Insectes nuisibles. l'"lo. !iO, — ('vti'rrbra cunieiiH: ndnlt; Rid .sliiiws iialiirni li'D^lli (original). line It will be noted that all the cases so far cited show the larva' to be mature in the latter part of suinnier or in fall, and in tin* specimen reared by Dr. Fitch pupation lasted through the winter and until the follow- iufj-July, which is quite ditlerent from the i>eri(!d of pupation in most of tiie hot-tlios, (U'diniiiily the pupa stajje lastiny but n few weeks and tiie winter beinf;]>assed in the larval staji'e in the bodies of the host ani- mal. It IS hardly to be supjiosed that eggs laid by an adult the last of July could mature by the middle of August, so we nius*; infer more than one yearas necessary t<» the life cycle of the insect, in some cases at least. July.'U, 188"),Mr. ('.eorge K. Ciier- rie, then astmlent in the Towa Agri- cidtural College, took two larvae from thc! scrotum of a chipmuidv, tlie testicles being entirely consumed. These be placed in ahrohol, and the specimens now in hand correspond perfectly with the description of larva given by Dr. Fitch, exce))t that Dr Fitch states that the head end presents no appearance of .jaws or other appendages, while in these spc<v imens the hook-like appendages are * ~~^ distinct. These nughtbe so retracted, however, as to be inconspicuous and easily overlooked. The figures here presented (tig. 49) were drawn from specimens i-eceived through the kindness of Mr. (leorge B. Starkweather. The details con- cerning their (capture, etc., we repro- duce (see ]). i07) from Insect Life (Vol. II, p. 216). If it is allowable to detail a life cycle from the records at hand it would seem that full-grown larva' are found from the 1st of August until in Octobe
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherwashi, bookyear1896
