Globibunus rubrofemoratus Roewer, 1912

Pinto-Da-Rocha, Ricardo & Hara, Marcos Ryotaro, 2009, New familial assignments for three species of Neotropical harvestmen based on cladistic analysis (Arachnida: Opiliones: Laniatores), Zootaxa 2241, pp. 33-46 : 36-38

Globibunus rubrofemoratus Roewer, 1912 , new family assignment

( Figs. 1 and 4 A–C)

Globibunus rubrofemoratus Roewer, 1912:166 ; 1923:124 (rdesc), Fig. 129 (lat hab); Mello-Leitão 1941:319 (desc fem, dist); Goodnight & Goodnight 1942:3 (dist); Caporiacco 1948:613 (cit); Kury 2003: 101 (cat). (ma holotype; Ecuador, Loja; without collector and date; SMF RI 245; examined).

Diagnosis: Zamorinae with unarmed ocularium, dorsal scutum densely covered by granules, mesotergal groove I backward, II frontward, III–V straight, area I divided, pedipalpal patella with mesal large setiferous tubercle, coxae II–III without conspicuous armature, ventral plate of penis with two subbasal rounded lobes dorsally with two undivided setae.

Redescription: Male (holotype): Dorsum ( Fig. 1 A,C): Measurements: DSL 3.5; OMW 2.7; PL 1.7; PW 2.3; Leg I 8.1; II 15.3; III 10.1; IV 15.8. Anterior margin of dorsal scutum with a short, laminar projection placed externally to the lateral paracheliceral projections (easier to see in lateral view) ( Fig. 1 C), with a row of small tubercles interrupted in front of ocularium. Body outline almost rectangular, slightly wider at mesotergal area II. Ocularium, prosoma and opisthosoma densely granulate. Ocularium high, forward oblique, placed close to anterior border of dorsal scutum, unarmed. Prosoma, mesotergal areas I–IV, free tergites and anal operculum unarmed and densely covered by granules (more conspicuous in lateral view) except on grooves; area I divided by a longitudinal groove. Lateral border with an external row of tubercles increasing in size posteriorly.

Venter ( Fig. 1 B): Coxae I–IV covered with tubercles; I with tubercles increasing in size distad, anterior row of larger and pointed tubercles.

Chelicera ( Fig. 1 A,B): Segment I with well marked bulla, covered with granules. Segment II swollen, with one frontal mesal large setiferous tubercle.

Pedipalpus ( Fig. 1 D,E): Trochanter with two ventral setiferous tubercles, distal longest. Femur with five setiferous tubercles (basal as large as femur length). Patella with mesal large setiferous tubercle. Tibia ectal iII, mesal Iii. Tarsus ectal Iiii, mesal Iii.

Legs ( Fig. 1 F,G): Coxa with one large anterior tubercle, one posterior; II with one tubercle in front of ozopore, one fused with one of III; III with one median, one posterior fused with one of IV; coxa IV with one tubercle close to body and several small on lateral. Femora-tibiae densely tubeculate. Femora I–IV densely covered with small tubercles roughly organized in longitudinal rows. Tarsal formula: 6, 13, 7, 7.

Penis ( Fig. 4 A–C): Truncus with a pair of bifid basal setae and a pair of basal trifid setae; ventrally with a distal, long, bifid pair of setae. Ventral plate with a distal part with two rounded lobes without setae; two subbasal rounded lobes dorsally with two undivided setae, ventrally with a median pair of undivided setae and an ectal bifid and longer setae. Glans dorsally inflated, stylus smooth, slender and without crest.

Coloration: Specimen discolored. Body background pale yellow. Segment II of chelicera with a white reticulated pattern, forming cells of background coloration.

Female: unknown.

Figures

FIGURE 1. Globibunus rubrofemoratus Roewer 1912. Male (holotype): A, habitus, dorsal view; B, idem, ventral view; C, idem, right lateral view; D, left pedipalp, ectal view; E, idem, patella – tarsus, dorso mesal view; F, right leg I, dorsal view; G, idem, right trochanter – patella IV; H, idem, right tibia – tarsus IV. A – C at same scale; D and E at same scale; F – H at same scale. Scale bars: 1 mm.

FIGURE 4. Distal part of penis: A – C: Globibunus rubrofemoratus Roewer, 1912, A, dorsal view; B, ventral view; C, right lateral view. D – E: Rivetinus minutus Roewer, 1919, D, dorsal view; E, right lateral view. F – G: Ramonus conifrons Roewer, 1956, F, dorsal view; G, right lateral view. A – C, at same scale; D and E at same scale; F and G at same scale. Scale bars: 0.1 mm.