Rhaucus Simon, 1879

García, Andrés F. & Kury, Adriano B., 2017, Taxonomic revision of the Andean harvestman genus Rhaucus Simon, 1879 (Arachnida, Opiliones, Cosmetidae), Zootaxa 4338 (3), pp. 401-440: 403-404

publication ID

https://doi.org/10.11646/zootaxa.4338.3.1

publication LSID

lsid:zoobank.org:pub:0D53EB9D-2D0B-4438-851B-A98563D16DCC

persistent identifier

http://treatment.plazi.org/id/546E685E-9F09-A617-9493-7DA22417FADF

treatment provided by

Plazi

scientific name

Rhaucus Simon, 1879
status

 

Rhaucus Simon, 1879  

Rhaucus Simon, 1879: 213   ; Pickard-Cambridge, 1905: 572; Roewer, 1912a: 77; 1923: 349; Mello-Leitão, 1923: 113; Mello- Leitão, 1926: 334; Mello-Leitão, 1932: 57; Mello-Leitão, 1933: 106; 110; Mello-Leitão, 1935: 113; Roewer, 1943: 13; Kury, 2003: 83.

Rhaucus   ( Rhaucus   ): Sørensen in Henriksen, 1932: 352.

Cynorta   [part.]: Goodnight & Goodnight, 1953: 37.

Neorhaucus Pickard-Cambridge, 1905: 572   ; Roewer, 1912a: 24; Roewer, 1923: 305; Mello-Leitão, 1926: 331; Roewer, 1927: 548; Mello-Leitão, 1932: 89; Mello-Leitão, 1933: 107; Mello-Leitão, 1935: 114; Kury, 2003: 73. New synonymy

Pararhaucus Pickard-Cambridge, 1905: 572   ; Roewer, 1912a: 101; Roewer, 1912b: 142; Roewer, 1923: 378; Mello-Leitão, 1926: 335; Roewer, 1928: 551; Mello-Leitão, 1932: 88; Mello-Leitão, 1933: 107; Mello-Leitão, 1935: 114 [junior subjective synonym of Paecilaema C. L. Koch, 1839   by Goodnight & Goodnight (1953b: 54)]. New synonymy Megarhaucus Mello-Leitão, 1941: 169   ; Kury, 2003: 67. New synonymy

Etymology. From Greek Ῥαῦκος (name of two cities in Crete). Gender masculine.

Type species. Type of Rhaucus Simon, 1879   : Rhaucus vulneratus Simon, 1879   , by subsequent designation of Pickard-Cambridge (1905).Type of Neorhaucus Pickard-Cambridge, 1905   : Neorhaucus aurolineatus   Pickard- Cambridge, 1905, by monotypy. Type of Pararhaucus Pickard-Cambridge, 1905   : Pararhaucus obscurus   Pickard- Cambridge, 1905, by monotypy. Type of Megarhaucus Mello-Leitão, 1941   : Megarhaucus robustus Mello-Leitão, 1941   , by original designation.

Diagnosis. DS alpha   type (in Cynorta   , Eulibitia   and Flirtea   beta type), tegument granular ( Figs 3a View FIGURE 3 , 10a View FIGURE 10 ) (in Eulibitia   , Flirtea   and Metarhaucus   smooth). Mesotergum clearly delimited, divided into four areas by well-marked grooves. Area III with a pair of tubercles varying between acuminate, dome-shaped or mammilliform ( Figs 6c View FIGURE 6 , 12c View FIGURE 12 , 15c View FIGURE 15 ) (in Cynorta   and Flirtea   acuminate medium/high spines; in Eulibitia   , very short tubercles). Pedipalpal tibia wide, spoon shaped ( Figs 4b View FIGURE 4 , 8b View FIGURE 8 ) (in Cynorta   , Erginus   , Eulibitia   and Flirtea   elongated, in Roquettea   spatulate). Coxae IV with prominent multi-tuberculated clavi inguines ( Figs 4h –i View FIGURE 4 ) (in Cynorta   and Flirtea   one large apophysis, in Eulibitia   two irregular tubercles, in Taito   wrinkled granules) and a multicapitate apophysis (mca) of at least seven tubercles ( Fig. 4i View FIGURE 4 ) (in Cynorta   three fused tubercles, in Taito   two tubercles, in Platymessa   two fused tubercles). Legs III –IV curved, robust and very granular, with a pair of ventral rows of spines from Fe to Ti ( Figs 3d –e View FIGURE 3 , 7d –e View FIGURE 7 ) (in Cynorta   , Erginus   , Eulibitia   and Flirtea   straight, thin and mostly smooth). Femur IV shorter than DS length (longer in Cynorta   , Erginus   , Eulibitia   and Flirtea   ). VP of penis short (in Flirtea   very elongated), with two lateral patches of type 4 microsetae not reaching the center of the VP in ventral view ( Figs 5c View FIGURE 5 , 8h View FIGURE 8 ) (in Cynorta   covering the entire surface, in Eulibitia   covering only lateral margins, in Flirtea   smooth). VP of penis with two large MS A ( Figs 5b View FIGURE 5 , 11g View FIGURE 11 , 14i View FIGURE 14 ) (in Cynorta   one MS A extremely reduced, in Flirtea   one MS A larger).

Included species. Rhaucus vulneratus Simon, 1879   ; Rhaucus quinquelineatus Simon, 1879   comb. rest.; Rhaucus serripes ( Simon, 1879)   comb. rest.; Rhaucus robustus ( Mello-Leitão, 1941)   comb. nov.; Rhaucus florezi   sp. nov.

Geographical distribution and habitat. Kury (2003) correctly stated that Rhaucus   inhabits Andean highlands in Colombia, near Bogotá (and not Brazilian Amazon), but also gave an isolated record from Monterredondo (Cauca, 1400 m a.s.l.). This record is probably a mistake and should refer to Monterredondo, a locality in the road from Bogotá to Chingaza National Natural Park ( Fig. 21b View FIGURE 21 ) very close to where R. robustus   , R. quinquelineatus   , and R. vulneratus   have been collected. Ranges of species of Rhaucus   show a significant degree of overlap ( Figs 22 View FIGURE 22 , 23 View FIGURE 23 ). They seem to be endemic to the Northern Andes in Colombia, from areas of Santander, Boyacá and Cundinamarca over 2300 m a.s.l. where montane forests and páramos from the Eastern mountain chain are dominant.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Opiliones

Family

Cosmetidae

Loc

Rhaucus Simon, 1879

García, Andrés F. & Kury, Adriano B. 2017
2017
Loc

Cynorta

Goodnight 1953: 37
1953
Loc

Rhaucus

Henriksen 1932: 352
1932
Loc

Neorhaucus

Kury 2003: 73
Mello-Leitao 1935: 114
Mello-Leitao 1933: 107
Mello-Leitao 1932: 89
Roewer 1927: 548
Mello-Leitao 1926: 331
Roewer 1923: 305
Roewer 1912: 24
Pickard-Cambridge 1905: 572
1905
Loc

Pararhaucus

Kury 2003: 67
Goodnight 1953: 54
Mello-Leitao 1941: 169
Mello-Leitao 1935: 114
Mello-Leitao 1933: 107
Mello-Leitao 1932: 88
Roewer 1928: 551
Mello-Leitao 1926: 335
Roewer 1923: 378
Roewer 1912: 101
Roewer 1912: 142
Pickard-Cambridge 1905: 572
1905
Loc

Rhaucus

Kury 2003: 83
Roewer 1943: 13
Mello-Leitao 1935: 113
Mello-Leitao 1933: 106
Mello-Leitao 1932: 57
Leitao 1926: 334
Mello-Leitao 1923: 113
Roewer 1912: 77
Pickard-Cambridge 1905: 572
Simon 1879: 213
1879