Rc!Scarch on the establishment and maİııtcııa:ıce of a labomtory Hyahmmı anatolic:ıın c",cavatum c31)ay. Sum~nary: The tota! life C)'c!eof H. a. excavatym ticks unda laberatar] conditir:ııs is ı29 . 5 :BO-ı7:-f: drrys on two hosts and 136.5 (83 -190) dri)'s on three Iw.sls. A sing!e female i-!. a. excaudıım eııgcrged O. 47 (O. 21--0. 87) g of blood from a rabbi! and laid 501-8 (23 j:) -93(7) eggs when placed in an incubata. i aruae !wtelied (i'om eggs lııid dlırin;; the Ont 10,;) (6-16) dr!J's

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... ut not from cggs Imrlueed af ter t/ii:, pericd. It u__ as noted that 66.5 % of the lari/ae hatched. Adult H. a. excavat,mı ticks obtained without mixing of the eggs from £lif. ferent females, had an anorna!)' rate of 77 . 5 % whereas with mixing, the anoma!)) rate was 74. %. Fift;'-nine perceııt of the engorged n]mp!ıs obtained wit!lOut mixing and 45 % of engorged n)'mphs obtained with mixing did not moult. (16 oC, 90 % relative humidily) were examiııed for a ]eti1'. Af ter the first three months, 74 % of the healtll)' male and 93 % of of the healthy female fJopulation remail1ed alive and active. However of the IlTIfedadults with mwmalies, onf;y 9 % of the male and 24 % of the female population remained alive and active. Af ter this period, unfed !ıealthy tick adults were found to remain alice and active for 10 months in the same incubatar, whereas all the ticks with anomalies died. In a low temparature incubator, whereas all tlze ticks with mwmalies died. In a low temperatiire inCllbator, health)' ımfed larvae and healtfı.y wifed n]mphs retain(Jd their viabilil)! for 5 and 4 mont!ıs resjJcctivelj'. The viabilil)! and activil)! of healthy unfed adults and ticks with diffcrent degrees of anomalies kept in an inCllbatcr