. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS 257 The Ox Warble Fly {Ilypoderma bovis DeG.).—This bot-fly is also European and is found in several provinces of Canada and in several states. It is more dreaded by cattle than lineatum, and causes much panic due largely to the insect's persistence and manner of egg-laying. More robust than H. lineatum. Body hairs yellow, except those on scutellum and base of abdomen wh
. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS 257 The Ox Warble Fly {Ilypoderma bovis DeG.).—This bot-fly is also European and is found in several provinces of Canada and in several states. It is more dreaded by cattle than lineatum, and causes much panic due largely to the insect's persistence and manner of egg-laying. More robust than H. lineatum. Body hairs yellow, except those on scutellum and base of abdomen which are yellowish-white, and at apex. Fig. 163.—The ox warble fly {Ilypoderma bovis). Enlarged. (After Hadwen.) j of abdomen which are bright lemon yellow (see Table given above for structural differences between bovis and lineatum) (Fig. 163). The adults of H. bovis appeared in B. C. from May 31st to August 2d as extremes (Hadwen). Carpenter says that most of the maggots emerged from May 2 7 th to June 17 th. The pupal period has an average duration of about 35 days varying according to temperature. One egg is laid at a time, often when the cattle are running, besides not 17. 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 Lochhead, William, 1864-1927. Philadelphia : Blakiston
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1919
