Heteropachylus ramphonotus, Mendes, 2011

Mendes, Amanda Cruz, 2011, Phylogeny and taxonomic revision of Heteropachylinae (Opiliones: Laniatores: Gonyleptidae), Zoological Journal of the Linnean Society 163 (2), pp. 437-483 : 467-470

publication ID

https://doi.org/ 10.1111/j.1096-3642.2011.00706.x

persistent identifier

https://treatment.plazi.org/id/A60A87F2-FF81-FFA5-D94C-E9B75CED44A3

treatment provided by

Valdenar

scientific name

Heteropachylus ramphonotus
status

SP. NOV.

HETEROPACHYLUS RAMPHONOTUS SP. NOV.

( FIGS 13 View Figure 13 , 14 View Figure 14 , 25A, B View Figure 25 , 28 View Figure 28 )

Heteropachylus sp. nov. 1: Sigrist & Carvalho, 2008: 39.

Distribution ( Fig. 28 View Figure 28 ): BRAZIL. Bahia (Ilhéus, Jussari and Una). WWF Ecoregion: NT0103, Bahia coastal forests.

D

Type material: m holotype ( IBSP 994 View Materials ), BRAZIL, Bahia, Jussari, Reserva Natural da Serra do Teimoso , 8–10.iv.1998, Brescovit & Bertani . Paratypes. m ( IBSP1172 View Materials ), same data as holotype ; m ( IBSP 1088 View Materials ), m ( IBSP 1105 View Materials ), Ilhéus. CEPLAC. 10–12.iv.1998. Brescovit A, Bertani R & Pinto-da-Rocha R ; m ( IBSP1053 View Materials ), Una. Reserva Biológica de Una. 13–16.vi.1998. Brescovit A, Bertani R & Pinto-da-Rocha R .

Etymology: Species name comes from the Greek rhamphos (beak) + notos (dorsum) in reference to the large hooked apophysis of area III, which resembles a bird’s beak.

Diagnosis: Three mesotergal areas; mesotergal area I entire, without the longitudinal division ( Fig. 13A View Figure 13 ); groove between mesotergal areas II and III incomplete ( Fig. 13A View Figure 13 ); mesotergal area III elevated in relation to the others and bearing unpaired armature ( Fig. 13A, D View Figure 13 ). Free tergite I with unarmed corners ( Fig. 13A View Figure 13 ); free tergite II with a small tubercle on each corner and a conical median apophysis ( Fig. 13A View Figure 13 ); free tergite III without longitudinal keel, unarmed and not fused to the dorsal scutum ( Fig. 13A, B View Figure 13 ). Dorsal anal operculum covered by rounded flattened tubercles. Femur IV ( Fig. 14 View Figure 14 ) bearing anvil-shaped dorsobasal apophysis and lacking dorsodistal one. Male genitalia ( Fig. 25A, B View Figure 25 ): Fourth pair of setae dislocated to the centre of the ventral plate, distal group formed by only the first three setae.

Measurements: Male holotype. CL: 2.0; MCW: 2.7; ASL: 4.0; MASW: 5.6. FL: 3.3. Males (N = 3). CL: 1.8 (1.6–2.0); MCW: 2.4 (2.1–2.7); ASL: 3.4 (2.4–4.0); MASW: 5.0 (4.4–5.6). FL: 3.3 (3.1–3.5).

Description

Male holotype: Dorsum ( Fig. 13A View Figure 13 ). Scutum outline pyriform, widest at mesotergal area II. Anterior margin of carapace with three to four tubercles at each side. Frontal hump covered with granules. Eye mound bearing pair of large paramedian tubercles ( Fig. 13A, C View Figure 13 ), with small granules near the eyes. Carapace smooth. Mesotergum divided into three areas; mesotergal area I entire; mesotergal areas I–III with small granules randomly distributed; groove between mesotergal areas II and III incomplete; mesotergal area III elevated in relation to areas I–II, posterior margin and free tergites, bearing large median spiniform apophysis, pointed backwards ( Fig. 13A View Figure 13 ). Posterior margin of scutum smooth. Free tergites I–II fused to the scutum, each with a transversal row of granules; free tergite II bearing median apophysis pointed backwards and one tubercle on each corner ( Fig. 13A, D View Figure 13 ); free tergite III with transversal row of small granules, with posterior border slightly convex ( Fig. 13A View Figure 13 ). Lateral areas of scutum with row of tubercles, the sizes of which increase progressively towards the posterior margin of dorsal scutum, reaching the groove between areas II and III and with last tubercle much larger than the others ( Fig. 13A View Figure 13 ). Dorsal anal operculum covered by rounded flattened tubercles. Appendages. Pedipalps ( Fig. 13A, D View Figure 13 ) – trochanter with two ventral setiferous granules. Femur with ventral row of setiferous granules and with subapical mesal spine. Tibia with four mesal (IiIi) and three ectal (i+Ii) spines. Tarsus with four mesal (IiIi) and four ectal (IiIi) spines. Legs – calcaneus I about half length of metatarsus I, lighter in colour and thicker than astragalus. Coxa IV ( Fig. 13A View Figure 13 ) armed with apical prolateral blunt apophysis. Trochanter IV ( Fig. 13A View Figure 13 ) armed with apical prolateral blunt apophysis and distal retrolateral curved apophysis. Femur IV ( Fig. 14 View Figure 14 ) short, distinctly curved in dorsal view and with two curvatures (‘S-shaped’) in lateral view, bearing rows of tubercles; with large anvil-shaped dorsobasal apophysis preceded by granules; retrolateral surface with row of rounded tubercles, the three most distal being larger than the remaining; prolateral surface with a row of blunt apophyses located at the distal half, larger at the median portion of the row; apex ( Fig. 13E View Figure 13 ) with a retrolateral conical apophysis, pointed upwards in apical view and prolateral rounded apophysis of acuminate apex. Tarsal counts. 5–6/8/6/6. Male geni-

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B

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Departamento de Geologia, Universidad de Chile

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Opiliones

Family

Gonyleptidae

Genus

Heteropachylus

Loc

Heteropachylus ramphonotus

Mendes, Amanda Cruz 2011
2011
Loc

Heteropachylus

Sigrist MS & Carvalho CJB 2008: 39
2008