KEY TO DEVELOFMEI'lTAL STA(SS 



With scutiom Family Ixodidae 



Without scutum Family Argasidae 



Family Argasidae 



1. Six legs Larvae 



Eight legs 2 



2, Genital aperture undeveloped; in 

 large nymphs may be indicated by 



a small, otherwise undifferentiated 



depression .Nymphs 



Genital aperture clearly developed 



as a differentiated area .. Adults 



Family Ixodidae 



1. Six legs Larvae 



Eight legs 2 



2. Genital aperture undeveloped. Scutum 

 of 5 type but basis capituli lacking 



porose areas . Nymphs 



Genital aperture developed. Scutum 



of cf or $ type and basis capituli of 



5 with two porose areas (Figure 6 ) Adults 



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