Heterophrynus elaphus Pocock

Chirivi-Joya, Daniel, Moreno-González, Jairo A. & Fagua, Giovanny, 2020, Two new species of the whip-spider genus Heterophrynus (Arachnida: Amblypygi) with complementary information of four species, Zootaxa 4803 (1), pp. 1-41: 19-23

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Heterophrynus elaphus Pocock


Heterophrynus elaphus Pocock  

Figures 11–13 View FIGURE 11 View FIGURE 12 View FIGURE 13 , 22 View FIGURE 22 (in part). Table 4.

Heterophrynus elaphus Pocock, 1903: 220–222   ; Mello-Leitão 1931: 49; Mello-Leitão & Feio 1949: 318; Roewer 1952: 37; Roewer 1956: 430; Roewer 1957: 68; Weygoldt 1972: fig. 10; Weygoldt, 1974: figs 2, 6; Igelmund & Wendler 1985: 287; Igelmund 1987: 75–88, figs 1–6; Igelmund & Wendler 1991a: 63–73, figs 1–10; Igelmund & Wendler, 1991b: 75–82, figs 1–6; Selden et. al. 1991: figs 2, 6; Weygoldt 1994: 245; Weygoldt 1996: figs 9, 29, 33; Weygoldt 2000: figs 20, 25, 32, 79–87; Giupponi 2002: 173; Réveillion et al. 2014: 102; Armas et al. 2016: 45, 48, figs 1A, 2F-I, 3C; Lehmann & Friedrich 2018: 171, table 2, 3; Ballón-Estacio & Armas 2019: 15, 19.

Type locality: Marcapata Valley , Cuzco, Perú   .

Examined material (1 female, 1 male, 1 juvenil): PERÚ: Pasco: Parque Nacional Yanachaga-Chemillén, Paujil (10°19´22.5´´S; 75°15´44.7´´W): 360 masl, 1 October 2015, J. Cabra, B. Portuguéz, three males, 1 female, 1 male juvenile ( MZUSP 74571 View Materials ) GoogleMaps   .

Distribution: Countries: Bolivia, Perú. Other records from: Peru: Igelmund & Wendler (1991a): Pucallpa; Roewer (1952): Tingo María; Roewer (1957): Cascas, near to Trujillo; La Merced; Saposoa; Puente Cayumba: Rio Huallaga; Tingo Maria: Cueva de Las Lechuzas; Ballón-Estacio & Armas (2019): Cusco, Madre de Dios. Bolivia: Réveillion et al. (2014): Beni.

Diagnosis. Heterophrynus elaphus   can be differentiated from other species by present the following characters together: three teeth in the ectal portion of the basal segment of the chelicerae. Six spines in the dorsal Patella   , P7 and PIII are absent. Four long spines in the ventral femur, spine FIII is smaller than FII and longer than FV, FIV is absent. Female genitalia with gonopod sclerites with claw-like shape, a little curved at the distal portion. Seminal receptacles with a square shape ( Fig. 13D View FIGURE 13 ).

Similar species: the more similar species is H. cheiracanthus   , however, this species present the spines P7, and PIII. The female genital differs by presenting gonopod sclerites shorter and more curved ( Fig. 10D View FIGURE 10 ).

Male genital of H. elaphus   presents a Pi, LaM, and LoL 1 with a very similar length and an LoD very elongated and wide, which differs from the other species ( Fig. 13 View FIGURE 13 , A, B, C).

Complementary description. Female (MZUSP 74571): Total length 32.4mm. Carapace, opisthosoma, and legs have a brown coloration, pedipalps brown with red tonalities. Measures of the female are provided in Table 4.

Carapace. Anterior margin straight without lobes, carapace surface with a widely spaced granulation, posterior margin of with a concave medial region. Lateral and anteromedial eyes clearly visible, anteromedial ocular tubercle with black coloration ( Fig. 11A View FIGURE 11 ).

Sternum. Tri-segmented, segments are well sclerotized, the area around segments is also sclerotized. Tritosternum projected anteriorly, elongated, conical, with 30 setae in the basal region, eighth in the medial region, 11 in distal region and two more in the apex.

The second segment (tetrasternum) oval and with three setae on medial region. The third segment (penta- sternum) rounded, smaller than the second segment, has two setae on medial region. Metasternum longitudinally divided ( Fig. 11B View FIGURE 11 ).

Abdomen. Oblong, color brown, with soft punctuations. Carapace wider than the Abdomen ( Fig. 11C View FIGURE 11 ).

Chelicera. Presents a mesal row of three teeth on the basal segment of the chelicerae with the first in the proximal region, with two cuspids, follow by one tooth shorter in the medial portion, and the third bigger than others placed in the distal region ( Fig. 11D View FIGURE 11 ). The ectal row of the basal segment of the chelicerae have three teeth, two with acuminated apex placed in the proximal portions, fused at the base (tooth 1 and 2), and one more with acuminate apex placed on the medial portion (tooth 3) ( Fig. 11F View FIGURE 11 ). Mobile finger of the chelicerae with five teeth.

Pedipalp. Trochanter: Prolateral face with four spines; spines Tr1 and Tr3 placed in the medial region, Tr2 placed near to ventral margin. Tr3 and Tr4 with subequal lengths. Spines lengths: Tr2>Tr1>Tr3≥Tr4. Dorsal oblique series of nine setal tubercles. The dorsomedial area without spines but with three tubercles ( Fig. 11E View FIGURE 11 ). Femur: Ventral face with four major spines, with four tubercles between FII–FIII, seven between FIII–FV, and 11 more distally than FV, FIV is absent. Spine lengths: FI>FII>FIII>FV ( Fig. 12A View FIGURE 12 ). Dorsal face with five major spines, with four tubercles between F3–F4, five between F4–F5, and 11 more distally than F5. F1 and F2 share the same base and are clearly separated from F3. Spine lengths: F3>F4>F1=F2>F5 ( Fig. 12B View FIGURE 12 ). Patella: Ventral   face with four major spines, PVI and PIII are absent, six tubercles more proximally than PV, four between PV–PIV, six between PIV–PII, five between PII–PI, PI wider than the other spines. Spine lengths: PII>PIV>PV>PI ( Fig. 12C View FIGURE 12 ). Dorsal face with six major spines, P7 is absent, with six tubercles more proximally than P6 and five between P6 and P5. Spine lengths: P5=P4>P3>P6>P1>P2 ( Fig. 12D View FIGURE 12 ). Tibia: Ventral face with two major spines, five very small tubercles more distally than TII. Spine lengths: TII>TI ( Fig. 12E View FIGURE 12 ). Dorsal face with two major spines, six very small tubercles more distally than T2. Spine lengths: T2>T1 ( Fig. 12F View FIGURE 12 ). Tarsus-metatarsus: Internal face with the secondary line of dorsomedial bristles complete, the suture between the tarsus and the apotele is not visible. Legs. Femora brown. Femora lengths: I>II>III>IV ( Table 4). Leg I: Tibia with 55 segments and tarsus with 97 segments in the right leg; in left leg, tibia with 26 segments and tarsus is broken. Leg IV: Basitibia with three segments.

Basitibia-distitibia lengths: BT1>DT>BT3>BT2. Basitarsus shorter than the telotarsus. Tarsus tetramerous.

Female genitalia. Genital operculum pentagonal, reaching the second segment of the opisthosoma, seminal receptacles with a rectangular shape, separated at the medial portion, dorsal surface sclerotized at the proximal region and with an additional sclerotized layer around the base of the sclerite of the gonopod, basal region with orange coloration, medial and distal portion white. Sclerites of the gonopod with claw-like shape, basal portion with some transversal grooves, distal portion a little curved, with rounded apex, sclerites placed parallel, longer than the width of the seminal receptacle, sclerites cover almost the total length of the seminal receptacle ( Fig. 13D View FIGURE 13 ).

Variation. Variation in measures and segments of the basitibia IV, tibia I and tarsus I, are provided in Table 4.

Sternum. The number of setae over all segments of the sternum was variable. Pedipalp. Trochanter: line of setal tubercles vary between seven and nine. Femur: Ventral and Dorsal face: number of tubercles between the spines is variable; tubercles can be more conspicuous and, in some cases, can look as small spines. Patella   . Ventral face: can be present a very small spine PVI, number of tubercles is variable. Dorsal face: number and size of the tubercles are variable. Tibia. Ventral and Dorsal face: tubercles between spines can be more conspicuous. Legs. In leg I, the number of segments of the tibia vary between 26 and 65 and tarsus vary between 97 and 103. The relative sizes of the femora II, III and IV is variable. ( Table 4).

Male. Observed Males have a similar size than the female ( Table 4), Spination pattern same as females. Genital operculum has an oval posterior margin, expanded to the third segment of the opisthosoma.

Male genitalia. (MZUSP 74571): LaM with similar size to Pi. LoL 1 longer than LoL 2, LoL 1 is wider, densely covered with minute projections, placed close together with the base not visible; LoL 2 is wrinkled and does not present projections. In dorsal view, the LoD are elongated, wide, rounded and cover LoL1 and LoL 2 ( Fig. 13A, B, C View FIGURE 13 ).














Heterophrynus elaphus Pocock

Chirivi-Joya, Daniel, Moreno-González, Jairo A. & Fagua, Giovanny 2020

Heterophrynus elaphus

Lehmann, T. & Friedrich, S. 2018: 171
Armas, L. F. & Palomino-Cardenas, A. & Castillo-Espinoza, M. 2016: 45
Reveillion, F. & Olivier, P. & Hofer, H. 2014: 102
Giupponi, A. 2002: 173
Weygoldt, P. 1994: 245
Igelmund, P. & Wendler, G. 1991: 63
Igelmund, P. & Wendler, G. 1991: 75
Igelmund, P. 1987: 75
Igelmund, P. & Wendler, G. 1985: 287
Roewer, C. F. 1957: 68
Roewer, C. F. 1956: 430
Roewer, C. F. 1952: 37
Mello-Leitao, C. & Feio, J. de 1949: 318
Mello-Leitao, C. 1931: 49
Pocock, R. I. 1903: 222