. Sanitary entomology; the entomology of disease, hygiene and sanitation. he remainder of their life hidden awayabout the roosting places of the fowls, only venturing out to feed atnight. Several batches of eggs are deposited, engorgement taking placeafter each deposition. These ticks are remarkable on account of the factthat they can live over two years without food. They are also veryresistant to insecticides. There is another species of Argas A. reflextis (Fabricius) Latreille,which is of considerable economic importance. This attacks of the other members of this genus feed upo
. Sanitary entomology; the entomology of disease, hygiene and sanitation. he remainder of their life hidden awayabout the roosting places of the fowls, only venturing out to feed atnight. Several batches of eggs are deposited, engorgement taking placeafter each deposition. These ticks are remarkable on account of the factthat they can live over two years without food. They are also veryresistant to insecticides. There is another species of Argas A. reflextis (Fabricius) Latreille,which is of considerable economic importance. This attacks of the other members of this genus feed upon birds and bats. The African Relapsing Fever Tick: Ornithodoros mouhata (Murray) THE BIOLOGIES AND HABITS OF TICKS 433 Pocock.—This tick is a common parasite of man in a large part of tropi-cal Africa. It also feeds on domesticated animals. It lives in the hutsand is carried about by the natives in their mats, etc. As the nameindicates, it is the carrier of relapsing fever or tick fever of man inAfrica. The tick hides and breeds in the cracks, feeding at night. This. Plate XXVI. Fig. 1—(Upper left) Larvae of fowl tick under feathers of 2 (Upper right)—Unengorged male. Fig. 3 (Lower left)—Female with 4 (I>ower right)—Unengorged female. species is peculiar in that it does not have an active seed tick stage,the first molt taking place within the egg shell. The Spinose Ear Tick, Ornithodoros megnini (Duges) Neumann.—This is an American species. It is an important pest of live stock in thesemi-arid Southwestern United States and throughout Mexico. It alsooccurs in tlie ears of certain wild animals and not infrequently attacksman, producing severe earache. The tick normally attacks deep in theears of the host. The first or larval stage is very active. This is the 434 SANITARY ENTOMOLOGY stage which enters the ears. The larva- molt to nymphs within the ears infrom seven to twelve days. The nymphal stage is covered with spines,hence the common nam
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