Zannicranaus morlacus, Kury, Adriano B., 2012

Kury, Adriano B., 2012, A new genus of Cranaidae from Ecuador (Opiliones: Laniatores), Zootaxa 3314, pp. 31-44 : 38-41

publication ID	https://doi.org/ 10.5281/zenodo.281089
DOI	https://doi.org/10.5281/zenodo.5697374
persistent identifier	https://treatment.plazi.org/id/03CE87D3-7D7C-FFE3-FF1D-FB97FE46F801
treatment provided by	Plazi
scientific name	Zannicranaus morlacus
status	sp. nov.

Treatment

Zannicranaus morlacus View in CoL sp. nov.

( Figures 21–38 View FIGURES 21 – 23 View FIGURES 24 – 25 View FIGURES 26 – 29 View FIGURES 30 – 32 View FIGURES 33 – 38 )

Etymology. Neo-latinization of Ecuadorian Spanish “morlaco” (a native of Azuay), emphasizing this as the first reported species of Opiliones from Azuay province.

Type data. 3 holotype ( QCAZ AK 0029) Ecuador, Azuay, Molleturo, alt: 3210 m (79º20.426’ W, 02º48.221’ S) 27.xii.2001, I. Tapia & G. Onore leg.

Diagnosis. Scutal area I unarmed ( Figs. 22–23 View FIGURES 21 – 23 ). All areas divided into two halves by longitudinal median groove, but area II not invading area I ( Fig. 23 View FIGURES 21 – 23 ). Spines of area III strongly bent backwards, almost horizontal ( Figs. 22–23 View FIGURES 21 – 23 ). Femur of pedipalpus with ventral row of 3 strong ventral spines ( Figs. 26–29 View FIGURES 26 – 29 ). Femora I–II of male unarmed. Femur IV of male with 1 ventral subdistal spine, 2 prolateral spines ( Figs. 21–22 View FIGURES 21 – 23 ). Tibia IV of male with ventral row of spines. Color of body and appendages dull. Stylus without stylar caps, apex shaped as an elongate erythrocyte. Male tarsal counts 7(3)/13(3)/7/8.

Description: male holotype. Measurements of body: CL = 2.9, CW = 4.0, AL = 4.3, AW = 6.1.

Dorsum. Dorsal scutum roughly guitar-shaped with distinct coda (parallel-side terminal area) ( Fig. 23 View FIGURES 21 – 23 ). Growing slightly higher in lateral view at eye mound ( Fig 22 View FIGURES 21 – 23 ). Carapace wide, roughly rectangular with anterior sides obliquely truncated, carapacal area well-marked, parabolic-shaped ( Fig. 23 View FIGURES 21 – 23 ). Abdominal scutum steadily growing wider, widest at 2/3 towards end, with sides rounded in dorsal view ( Fig. 23 View FIGURES 21 – 23 ). Frontal hump well-defined, armed with very high single spine bent frontwards ( Figs. 22 View FIGURES 21 – 23 , 24 View FIGURES 24 – 25 ). Eye mound wide, without median depression, armed with a paramedian pair of acuminate tubercles ( Figs. 23–24 View FIGURES 21 – 23 View FIGURES 24 – 25 ). Mesotergum well delimited, following outline of abdominal scutum, divided into 3 areas sparsely covered with granules. Area I divided into left and right halves, each with posterior border convex, unarmed. Area II unarmed, not penetrating into area I, posterior border sinuous ( Fig. 23 View FIGURES 21 – 23 ). Area III with a pair of paramedian acute spines, strongly bent backwards almost horizontal, and with outline clearly distorted posteriorly by the base of these spines ( Figs. 22–23 View FIGURES 21 – 23 ). Lateral margins unarmed. Posterior bor- der of scutum smooth and unarmed, strongly convex in the middle ( Fig. 23 View FIGURES 21 – 23 ). Free tergites I–III armed each with 1 row of granules, those of tergite III largest.

Venter ( Fig. 25 View FIGURES 24 – 25 ). Coxae I–III fine granular, transverse parallel, subequal in size, touching in midline. Coxa IV much more robust than any of the others, clearly slanted. Stigmatic area Y-shaped, with large unobstructed elliptical stigmata. Coxa IV ventro-distally with pair of acuminate tubercles. Genital opercle elliptical, truncated posteriorly.

Chelicerae ( Figs. 22–25 View FIGURES 21 – 23 View FIGURES 24 – 25 ). Basichelicerite well-developed, smooth, slightly surpassing in situ pedipalpal trochanter ( Fig. 23 View FIGURES 21 – 23 ). Bulla well-defined, armed with dorso-median posterior erect spine ( Figs. 22 View FIGURES 21 – 23 , 24 View FIGURES 24 – 25 ). Hand only a little swollen, and without remarkable armature.

Pedipalpus ( Figs. 26–32 View FIGURES 26 – 29 View FIGURES 30 – 32 ). Trochanter with 3 unequal ventral and 1 large dorsal spines. Femur with 1 ectal row of 6 subequal tubercles; 1 mesal row of 5 tubercles; 1 dorsal row of 4 spines and 1 ventral row of 3 powerful spines. Patella and tibia dorsally with scattered short tubercles. Tibia ventro-ectal with 4 (IiIi), ventro-mesal with 6 (IiiiIi) spines. Tarsus ventro-ectal with 3, ventro-mesal with 3 spines. Article measurements: Tr = 1.3, Fe = 3.0, Pa = 1.6, Ti = 2.5, Ta = 2.2, claw = 1.5.

Legs. All leg articles unarmed except femur and tibia IV. Femur IV with 1 ventral subdistal spine, 2 prolateral spines. Tibia IV with a row of 7 spines, running obliquely from retrolateral to ventral. Calcaneus I twice as long as astragalus and a little thickened, astragalus with 3 rings. Metatarsus II–III each with 12 rings, IV with 23 rings. Tarsal counts 7(3)-7(3)/13(3)-12(3)/7-7/8-8. Measurements of legs in Table 1 View TABLE 1 .

Color (in alcohol). Body and appendages uniform Brownish Orange (54). Legs, posterior part of lateral bor- der of scutum and free tergites/sternites darker shaded.

Male genitalia ( Figs. 33–38 View FIGURES 33 – 38 ). Truncus penis straight, without distal walking-stick bend ( Fig. 33 View FIGURES 33 – 38 ). Ventral plate of penis subrectangular, strongly leaned against truncus ( Figs. 33–34 View FIGURES 33 – 38 ), with wide and shallow V-cleft ( Figs. 34–35 View FIGURES 33 – 38 ), and with two lateral patches of scale-setae on ventral surface ( Figs. 34 View FIGURES 33 – 38 ). Glans sac very long, fanfold, with small conical dorsal process ( Figs. 33, 38 View FIGURES 33 – 38 ). Stylus uniformly thin, sinuous ( Fig. 38 View FIGURES 33 – 38 ). Stylus head simple, elongate-erythrocyte-shaped, without opposed flat pieces (“stylar-caps”) ( Figs. 36–37 View FIGURES 33 – 38 ).