Abstract
Hyalomma (Euhyalomma) marginatum isaaci Sharif, 1928 is recorded and re-described for the first time from Balochistan, Pakistan in
detail with special reference to its capitulum, basis capituli, hypostome, palpi, scutum, genital aperture, adanal and plates subanal
plates, anus and festoons. Taxonomic structures not discussed and not illustrated before are described and illustrated as additional
information to facilitate zoologists and veterinarians in correct identification of female and male of this tick. A key is erected to Acari
families and included genera highlighting the relationships. It is hoped that this paper will provide an anatomical base for future
morphological studies.