Gamasiphoides procerus, Karg & Schorlemmer, 2011

Karg, W. & Schorlemmer, A., 2011, New Insights Into The Systematics Of Parasitiformes (Acarina) With New Species From South America, Acarologia 51 (1), pp. 3-29 : 24

Gamasiphoides procerus n. sp.

Holotype — ~ Paraguay 1966, Puerto Presidente Stroessner , litter and soil from liana-shrubbery, 50 m above Acaray waterfall, collector I. Loksa.

Etymology — Procerus = slender, as to the remarkable body shape of the species.

Diagnosis — Remarkable slender shape of the idiosoma, short setae of dorsum, ventrianal shield distinctly longer than wide, marginal stripe of the dorsum turned down to the venter carrying the marginal r- and R-setae ( Figure 13 ).

Description — Idiosoma ~ 635 x 383 µm, brown.

Dorsum: With short setae, most 17 to 20 µm long, caudal setae I5 very short: = 8 µm long.

Venter: Marginal stripes of the dorsum turned down to the venter carrying 2 r-setae and 4 R-setae, sternal shield with a pore-like pattern, sternal setae of different length: st1 = 25, st2 = 20, st3 = 17, st4 = 30 µm long, genital and ventrianal shields with netlike patterns, most setae on the ventrianal shield 20 to 25 µm long however Vi5 =15 and Vz3 = 35 µm long, the small metapodal shields behind coxae IV oval with a glandular pore at the inner end, posterior part of peritrematal shields broadened and in contact with the ventrianal shield, with a slender dotted lateral margin.

Gnathosoma: Tectum with a strong middle branch, 320 µm long, distinctly longer than the width of the tectum-basis (290 µm).

Legs: I = 480, II = 392, III = 348, IV = 470 µm long, relevant chaetotaxy on genu III = 2,4/1,1 and genu IV = 2,5/1,1 corresponding with the known patterns of the genus Gamasiphoides .

KEY TO SPECIES OF Gamasiphoides

Figures

FIGURE 13: Gamasiphoides procerus n. sp. Female. a – Dorsum, 635 µm long; b – Venter; c – Tectum, 74 µm wide.