British medical journal . ers of this group hide away increvices and corners during the day, and come out at night and feed, for theirdeeds aro evil. Argas persicua, knownto travellers as the teiguedo niiana, is of an ovalform, of brownish-redcolour. The male measures4 to 5 mm. in length by3 mm. in breadth ; thefemale 7 to 10mm. in lengthby 5 to 6 mm. in creature frequents thonorthern parts of Persia,and occurs in many otherwarm countries. In SouthAfrica it is known as thoIlimjiaii. and Wandlius,where it is mainly a fowlparasite. In Persia it isvery much dreaded, thoughprobably th
British medical journal . ers of this group hide away increvices and corners during the day, and come out at night and feed, for theirdeeds aro evil. Argas persicua, knownto travellers as the teiguedo niiana, is of an ovalform, of brownish-redcolour. The male measures4 to 5 mm. in length by3 mm. in breadth ; thefemale 7 to 10mm. in lengthby 5 to 6 mm. in creature frequents thonorthern parts of Persia,and occurs in many otherwarm countries. In SouthAfrica it is known as thoIlimjiaii. and Wandlius,where it is mainly a fowlparasite. In Persia it isvery much dreaded, thoughprobably the effects of its bite are duo to tlio un-suitable treatment the punctured skin receives and thoconsequent invasion of the tissues by septic bacteria. InSouth Africa it is frequently fatal to fowls, especially tochickens, bat the death is there believed to bo due to theloss of blood. Fig. 1. — Evolntiouiol Arof^siiersicus. 1,?tho e^g; 2. liliG six-ejjged larva; 3, thesame fj o r j, c d ; 4,an unfed nymph; 5,nymph Fig. -? r ic i n u parta of tho luiual*,A, seen from the dov.^ul. tho ventral surface. Thomedian, dotted, portion of tlioleft hand tigure is tho slieatli;tbo toothed portion thorostrum. Tile lateral prnoo^ais thcpedii)jilpus. x 35. (AfterNuttall and Warburton.) Wo have not yet explained that ticks pass throughseveral stages as they advance from the egg to the larval stage of A. persicus will remain on its hostfor five days. It then leaves, and moults in the moulting it visits its host by night and remains
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectmedicine, bookyear185
