Dermacentor sp.; adult male with dorsal surface covered by hard “ornate” scutum. Example of “ornate”, or “scutate”, tick. Scutum of female covers only.

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Dermacentor sp.; adult male with dorsal surface covered by hard “ornate” scutum. Example of “ornate”, or “scutate”, tick. Scutum of female covers only approximately anterior third of dorsal surface. Note also, festoons along posterior body margin. [Dvar 1]

D. variabilis, males; dorsal (left) ventral (right) D. variabilis, males; dorsal (left) ventral (right). Note that dorsal scutum covers entire portion of body (a sexually dimorphic character of hard ticks indicating a male). Note too that coxae of male (ventral) increase in size, anterior to posterior. This species is referred to as an “ornate” (i.e., fancy) tick. The scutum is colorful and possesses punctations and grooves. Legend: a, anus; f, festoons; g, genital pore; p, punctations; s, spiracle, x, coxae. [Dvar 2] x x x g p x s a 2.0 mm f

D. variabilis, females (partially engorged); dorsal (left) ventral (right). Note that dorsal scutum (s) covers only anterior portion of body (a sexually dimorphic character of hard ticks indicating a female). Note too that coxae of female (ventral) do not increase appreciably in size, anterior to posterior. [Dvar 3] 2.0 mm

Dermacentor sp. : female (A); engorged female (B) dorsal views Dermacentor sp.: female (A); engorged female (B) dorsal views. Legend: a, abdomen; f, festoons; s, scutum. [Dvar 4] A B s s a a f

Dermacentor sp. : female (A); engorged female (B) ventral views Dermacentor sp.: female (A); engorged female (B) ventral views. [Dvar 5] A B

Dorsal foveal pores on this adult female Dermacentor (approximate location shown by asterisks in A). Note too, festoons along posterior body margin. [Dvar 6] A * * 68 um

Foveal pores on this female adult Dermacentor (A); enlarged in B Foveal pores on this female adult Dermacentor (A); enlarged in B. Foveal pores in B, enlarged in C and D. [Dvar 7] C D B C D

Dermacentor sp.: distal chelicerae (c), and dentate chelicerae sheaths (cs). Note; hypostome not in field of focus. [Dvar 8] c cs

Dermacentor sp.; hexapod larva. [Dvar 9]