. The external and internal parasites of [man and] domestic animals. Figure 33.—Cattle-louse (Ecematopinus vituli Denny), much enlarged. FromAmerican Naturalist. Figure 34.—Hog-louse (H. suis Leach), much enlarged. From Cuvier. 6 42 BOARD OP AGRICULTURE. MALLOPHAGA (Bird-lice).These insects live both among the feathers of birds and hairof mammals. They are peculiar in having distinct jaws (Figure36), instead of a sucking tube. The body is flat, corneous,and firm above. The head is horizontal and generally antennee have three to five joints. The mandibles aresmall and hook-like. The m
. The external and internal parasites of [man and] domestic animals. Figure 33.—Cattle-louse (Ecematopinus vituli Denny), much enlarged. FromAmerican Naturalist. Figure 34.—Hog-louse (H. suis Leach), much enlarged. From Cuvier. 6 42 BOARD OP AGRICULTURE. MALLOPHAGA (Bird-lice).These insects live both among the feathers of birds and hairof mammals. They are peculiar in having distinct jaws (Figure36), instead of a sucking tube. The body is flat, corneous,and firm above. The head is horizontal and generally antennee have three to five joints. The mandibles aresmall and hook-like. The maxillary palpi, when present, arefour-jointed; and the labial palpi two-jointed. The legs areshort and stout^ with one or two strong claws. There are sev-eral hundreds of species already described, nearly every birdhaving one or several peculiar species. They produce nearlythe same effects as the true lice, and may be destroyed by thesame remedies. Eiffure a Figure 36.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectparasit, bookyear1870
