Umbyquyra paranaiba, Gargiulo & Brescovit & Lucas, 2018

Gargiulo, Fabio de F., Brescovit, Antonio D. & Lucas, Sylvia M., 2018, Umbyquyra gen. nov., a new tarantula spider genus from the Neotropical region (Araneae, Mygalomorphae, Theraphosidae), with a description of eight new species, European Journal of Taxonomy 457, pp. 1-50 : 10-14

Umbyquyra paranaiba gen. et sp. nov.

urn:lsid:zoobank.org:act:A251D3E2-A7B2-4445-9FC1-4DA4D9F76A4F

Figs 5E , 7–8 , 18 G–H, 29

Cyrtopholis palmarum – Bertani 2000: 30–31 (misidentification).

Diagnosis

Males of U. paranaiba gen. et sp. nov. differ from those of the other species by the short and straight fovea ( Fig. 5E ), a palpal bulb with a short embolus, the prolateral inferior (PI) and apical keel (A) parallel near the rear distancing from each other in the middle region, becoming more evident and narrowing again at the rear ( Figs 7A , 8B ) and tibial apophysis with a very short prolateral branch with

two strong distinct spines ( Figs 7C , 8D ). Females resemble those of U. palmarum gen. et comb. nov. by an SR with short ducts, but differ by a rectangular and broader sclerotized basal area ( Fig. 7D ).

Note

Bertani (2000: 30–31) identify a male as C. palmarum (IBSP 4730). The specimen was examined by us and identified as U. paranaiba gen. et sp. nov. and we detected that the number of keels is four (PS, PI, A and SA, Fig. 8 ) and not three.

Etymology

The species epithet is a noun in apposition taken from the type locality.

Type material

Holotype

BRAZIL: ♂, Mato Grosso do Sul, Paranaíba , 19°40′30.4″ S, 51°1′27.1″ W, May 1985, R. R. da Silva leg. ( IBSP 107411 ).

Paratypes

BRAZIL: Acre: 1 ♂, Rio Branco, 9°58′25.7″ S, 67°49′29.7″ W, 13 Oct. 1952, C. A. Souza leg. ( IBSP 103054). – Goiás: 1 ♂, Mineiros, 17°33′44.2″ S, 52°32′51.9″ W ( IBSP 108090). – Mato Grosso do Sul: 1 ♀, Paranaíba, 19°40′30.4″ S, 51°11′27.1″ W, 20 Jul. 1988, R. R. da Silva leg. ( IBSP 111695). – Mato Grosso: 1 ♂, Canarana, 13°31′19.0″ S, 52°15′45.6″ W, 16 Dec. 2000, R. A. K. Ribeiro and C. A. Falcetti leg. ( IBSP 110469). – São Paulo: 2 ♂♂, Morro Agudo, 20°43′48.6″ S, 48°03′15.0″ W, Oct. 1987, J. H. B. Medeiros leg. ( IBSP 107421).

Other material examined

BRAZIL: Mato Grosso: 1 ♂, Juara, 11°15′20.8″ S, 57°30′29.5″ W, 14 Aug. 2007, R. A. K. Ribeiro leg. ( UFMT 0964); 1 ♂, Cuiabá, 15°36′44.9″ S, 56°04′05.8″ W, 2002 ( UFMT 0965); 1 ♂, same collection data as for preceding, 3 Oct. 1982, S. Silva leg. ( UFMT 0965); 1 ♂, Chapada dos Guimarães, 15°27′46.9″ S, 55°44′59.2″ W, Jan. 2009 ( IBSP 167417); 1 ♂, Santa Cruz do Xingu, 10°09′16.9″ S, 52°23′28.5″ W, 16 Aug. 2010, Carvalho et al. leg. ( IBSP 167418); 1 ♂, Cuiabá, Campus UFMT, 15°36′44.9″ S, 56°04′05.8″ W, Oct. 2009, Thiago leg. ( IBSP 167424); 1 ♂, Lucas do Rio Verde, 13°04′24.9″ S, 55°55′11.1″ W, V. Azarias leg. ( IBSP 167425); 1 ♂, Nova Xavantina, 10 Oct. 1969, Destacamento da FAB leg. ( IBSP 103988); 2 ♂♂, São Felix do Araguaia, 11°37′03.1″ S, 50°39′59.8″ W, Nov. 1984, R. Korte leg. ( IBSP 104829); 3 ♂♂, 1 ♀, Rondonópolis, 16°27′59.6″ S, 54°38′07.8″ W, 7 Nov. 1985, Secretaria Municipal de Saúde leg. ( IBSP 104896); 1 ♂, Parque Nacional do Xingu, 11°32′45″ S, 53°34′23″ W, Jun. 1985, D.S. T. Xingu leg. ( IBSP 107418); 1 ♂, Sinop, 11°51′35.4″ S, 55°30′28.7″ W, Oct. 1988, C. Barbieri Filho leg. ( IBSP 107432); 1 ♂, Torixoréu, 16°12′04.9″ S, 52°33′30.0″ W, Sep. 1989, W. Garcia leg. ( IBSP 107620); 1 ♂, Ribeirão Cascalheira, 12°56′25.7″ S, 51°49′27.5″ W, 17 Nov. 2011 ( IBSP 166975); 1 ♂, same collection data as for preceding ( IBSP 166976); 1 ♂, same collection data as for preceding ( IBSP 166977); 1 ♂, same collection data as for preceding ( IBSP 166978). – Mato Grosso do Sul: 8 ♂♂, 1 ♀, Paranaíba, Sep. 1982, R.R. Silva leg. ( IBSP 104730); 9 ♂♂, same collection data as for preceding, Oct. 1982 ( IBSP 104733A); 6 ♂♂, same collection data as for preceding, Oct. 1985 ( IBSP 104733B); 1 ♂, same collection data as for preceding, May 1985 ( IBSP 107410); 1 ♂, same collection data as for preceding, Jun. 1985 ( IBSP 107419); 1 ♂, same collection data as for preceding, Jun. 1985 ( IBSP 107420); 1 ♂, same collection data as for preceding, Aug. 1983 ( IBSP 107621); 2 ♂♂, Três Lagoas, 20°47′22.1″ S, 51°42′14.4″ W, 20 Oct. 1997 ( IBSP 111145); 1 ♀, same collection data as for preceding, Sep. 1997, C. Gerbi leg. ( IBSP 111145); 1 ♂, Campo Grande, 20°28′06.8″ S, 54°37′07.1″ W, 20 Oct. 1985, Vera and Cesar leg. ( IBSP 111693); 1 ♂, Chapadão do Sul, Fazenda São Roque, 18°47′42.5″ S, 52°37′05.5″ W, Oct. 2007, C. Pritsch leg. ( IBSP 115381).

Natural History

Very aggressive when disturbed; specimens raise the abdomen resembling the defensive display of the species of Avicularia and of some spiders of Nemesiidae , or raise pedipalps and legs I resembling species of Acanthoscurria ( Fig. 18D, H ; Gonzalez-Filho et al. 2012) and Aguapanela Perafán, Cifuentes & Estrada-Gomez, 2015 ( Perafán et al. 2015).

Description

Male (holotype, IBSP 107411)

Color in life carapace and dorsal face of abdomen dark brown, ventral side lighter brown, legs covered with reddish hairs. In ethanol: carapace reddish-brown as dorsal face of abdomen, ventral side and legs light brown.

Total length 27. Carapace 11 long, 13 wide. Clypeus 0.2. Eye tubercle 1.6 long, 2.2 wide. AME 0.2 long, 0.3 wide; PME 0.2 long, 0.2 wide; ALE 0.4 long, 0.4 wide; PLE 0.3 long,0.2 wide. Basal segment of chelicerae with 10 teeth. Labium 2.1 long, 1.7 wide, with 115 pointed cuspules. Endites with 115–117 pointed cuspules. Stridulatory bristles with around 15 bristles on palp trochanter and 45 on leg I. Palp: femur 7.8, patella 4.3, tibia 7.1, tarsus 3.4, total 22.6. Leg I femur 14, patella 6.5, tibia 10.7, metatarsus 11.5, tarsus 6.7, total 49.4. II 13, 6.1, 9.8, 9.8, 6.2, 44.9. III 12, 5.5, 8.5, 10.3, 6.3, 42.6. IV 14, 6.5, 11.2, 17, 6.3, 54.5. Spination: palp: femur d0-0-1-0ap, patella p0-1-0-1-0ap tibia d0-0-1app, v0-1-2- 1p-1p-1r-0-0ap, p0-1-1-1-1-2-1-1-2-1-2-1ap, r0-0-1ap. Legs I femur d0-0-1app, patella p0-1-0ap, tibia v0-2-1r1r-1apr-1ap-1app, p0-1-0-1ap, metatarsus v0-1-0-0-1ap. II femur d0-0-1app, patella d 0-1r-0ap, p0-1-0ap, tibia v0-1r1p-0-1-1p-1p-1r-0-1apr, p0-1-0-1-0ap, metatarsus d0-1r-0-0ap, v0-1p-0-1r-0-0- 2app-1ap-1apr. III femur d0-0-1apr, p0-0-1-0ap, patella d0-1r-0-0-0ap, tibia v0-1-2-1r-1-1-1apr-2ap- 1app, p0-0-1-1-0ap, r2-1-1-1-1-2ap, metatarsus d0-0-1r-1p-0-1r-1p-0ap, v1r-1p-1p-1r-0-1apr-1ap-1app, p0-0-1-0-0-1-0ap, r1-1-1-1-1-3ap. IV femur d0-0-1apr, tibia v0-0-1-1r-2-0-2apr-1ap-1app, p0-1-0-0- 1ap, r0-1-0-1-1ap, metatarsus d0-0-1r-0-0ap, v, 1r-1p-1r1-1r-1r-1p-2-2-1r-1p-1r-1p-2app-1ap-1app, r1- 0-0-1-0-0-1ap. Palpal bulb with short embolus and four keels: PS, PI, A, SA. Tibial apophysis of leg I: retrolateral branch and two strong distal spines with three median setae ( Figs 7C , 8D ). PLS: basal, median and apical segments 2.2, 2, 2.2 long, respectively.

Female (paratype IBSP 111695)

In ethanol, color as in male. Total length 32. Carapace 13 long, 9.5 wide. Clypeus 0.3. Eye tubercle 1.5 long, 2 wide. AME 0.4 long, 0.4 wide; PME 0.4 long, 0.3 wide; ALE 0.2 long, 0.3 wide; PLE 0.3 long, 0.2 wide. Basal segment of chelicerae with eight teeth. Labium 1.6 long, 1.8 wide, with 120 pointed cuspules. Endites with 115–117 pointed cuspules. Stridulatory bristles as in male. Palp: femur 6, patella 2, tibia 3, tarsus 2.5, total 13.5. Leg I femur 8, patella 3.5, tibia 5, metatarsus 4, tarsus 2, total 22.5. II 7, 3, 3.5, 4.5, 2, 20. III 6, 2, 3, 5, 2.2, 27.7. IV 9, 2.5, 5.2, 9.2, 2.5, 28.4. Spination: palp: femur p0-0- 1app, tibia v0-1r-1apr-1ap-2app, p0-0-1ap. Leg I tibia v0-1r-0ap, r0-0-1-0ap, metatarsus v0-1-0-0-1ap. II tibia 1-0-1-1-1-0-2ap, metatarsus v0-1-1-0-0-1ap. III tibia v0-1-1app, p0-1-0-1-0-1ap, 0-1-1-1-0-1- 1ap, metatarsus v1-1r-1r-1p-0-0ap, r2-0-1-0-1ap. IV tibia v0-0-1-1-1ap-1app, p0-1-0-1ap-r0-1-0-1-0ap, metatarsus d0-1r-0-0-1ap, v1-1p-1-1-1-1p-1p-1-2ap, p0-1-0-0ap, r0-0-1-1ap. PLS basal, median and apical segments 2.7, 1.9, 2.7 long, respectively. Spermathecae with RS rounded at apex, distant from each other by approximately its diameter ( Fig. 7D ).

Distribution

Umbyquyra paranaiba gen. et sp. nov. has the widest distribution, occurring in the following Brazilian states: Acre, Mato Grosso, Mato Grosso do Sul and São Paulo ( Fig. 29 ).

Figures

Fig. 5. Fovea, carapace. A. Umbyquyra schimidti gen. et sp. nov. B. U. sapezal gen. et sp. nov. C. U. caxiuana gen. et sp. nov. D. U. cuiaba gen. et sp. nov. E. U. paranaiba gen. et sp. nov. F. U. belterra gen. et sp. nov.

Fig. 7. Umbyquyra paranaiba gen. et sp. nov. A–C. Holotype, ♂ (IBSP 107411). A. Palp, prolateral. B. Retrolateral. C. Tibial apophysis, ventral. D. Paratype, ♀ (IBSP 111695), spermathecae, dorsal. Abbreviations: see Material and methods.

Fig. 8. Umbyquyra paranaiba gen. et sp. nov. Holotype, ♂ (IBSP 107411). A–C. Palpal bulb. A. Prolateral. B. Anterolateral. C. Retrolateral. D. Tibial apophysis, retrolateral. E. Stridulatory organ, trochanter, male palp. F. Stridulatory organ, trochanter I (arrows in E–F pointed the stridulatory bristles). Abbreviations: see Material and methods.

Fig. 18 (opposite page). A–B. Umbyquyra acuminata (Schmidt & Tesmoingt in Schmidt, 2005) gen. et comb. nov. Live specimen from Santa Cruz de la Sierra, Bolivia (photos by Cristian Grismado). C–F. Umbyquyra cuiaba gen. et sp. nov. C. Live specimen from Parque Nacional Chapada dos Guimarães, Mato Grosso, Brazil, dorsal. D. Defensive display. E. Inside burrow. F. Detail of burrow interior without web. G–H. Umbyquyra paranaiba gen. et sp. nov. G. Live specimen from São Paulo, São Paulo, Brazil, dorsal. H. Defensive display, frontal (C–H, photos by Rafael Indicatti).

Fig. 29. Geographic distribution records of species of Umbyquyra gen. nov.: U. belterra gen. et sp. nov., U. caxiuana gen. et sp. nov., U. tucurui gen. et sp. nov. and U. tapajos gen. et sp. nov.