Under a low magnification of 25X, this scanning electron micrographic (SEM) image depicted a dorsal view of an unidentified engorged female tick which had been extracted from the skin of a pet cat while in the process of obtaining its blood meal. Seen here, is the distal half of the tick's blood-engorged abdomen.Note in PHIL 9959 and 9960, that in the case of another tick specimen, its entire dorsal abdomen is covered by its chitinous scutum, or 'shield', categorizing it as a male. In this specimen, the scutum only partially covers the dorsal abdomen, which identifies this tick as a female.Ticks belong to the Phylum Arthropoda, due to the fact that they maneuver upon jointed ( 'Arthro') legs ('poda'), as well as the Class Arachnida, for they've eight of these legs, unlike insects, which use six legs to move about.
CDC/ Callie Carr
November 27, 2012
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