Camillina bonaldoi, Xavier & Ott & Saturnino, 2020

Xavier, Cláudia, Ott, Ricardo & Saturnino, Regiane, 2020, Three new species of Camillina Berland, 1919 (Araneae: Gnaphosidae) from Brazil, Zootaxa 4802 (3), pp. 502-518: 514-517

publication ID

https://doi.org/10.11646/zootaxa.4802.3.6

publication LSID

lsid:zoobank.org:pub:B0A0C91F-460C-413E-B20A-18D1C4B3D695

persistent identifier

http://treatment.plazi.org/id/039CBE17-FFF3-FFC5-FF58-FF31A307C8EC

treatment provided by

Plazi

scientific name

Camillina bonaldoi
status

sp. nov.

Camillina bonaldoi   sp. nov.

Figs 15–21 View FIGURES 15–21 ; 50–63 View FIGURES 50–57 View FIGURES 58–63 ; 68–72 View FIGURES 64–71 View FIGURE 72 .

urn:lsid:zoobank.org:act:F1F6582F-DED4-448D-924C-1AA4EDB14345

Type material. Holotype 1♂ ( MPEG 31040 View Materials ) from Parque Nacional de Sete Cidades , 04°05’57.5”S 41°43’07”W, Piracuruca, Piauí, Brazil, 26.I.2007, L.S. Carvalho, M. T. L. Avelino & M.P. Albuquerque leg. GoogleMaps   Paratypes: same locality as the holotype, 1♀ ( MPEG 31041 View Materials ), 26.I.2007; 1♂ ( IBSP 250388 View Materials ), 06.XII.2006, pitfall traps; 04°05’56.3”S 41°05’56.3”W, 1♀ ( IBSP 250387 View Materials ), 13.XII.2006, winkler extractors; 04°05’57.5”S 41°43’0.7”W, 1♀ ( MNRJ 7686 View Materials ), 15.XII.2006, winkler extractors; all previous specimens were collected by L.S. Carvalho, D.F. Candiani & N.F. Lo- Man-Hung; 1♂ ( MNRJ 7685 View Materials ), 24.VI.2007, winkler extractors; 1♀ ( MPEG 31047 View Materials ), 24.I.2007, winkler extractors; 1♀ and 1♂ ( CHNUFPI 3397), 24.I.2007, pitfall traps; 04°05’57.5”S 41°43’0.7”W, 1♂ ( MPEG 31052 View Materials ), 26.I.2007, pitfall traps; 04°05’39.9’’S 41°43’53.3’’W, 1♂ ( MPEG 31053 View Materials ), 26.I.2007, pitfall traps; 04°05’57.5”S 41°43’0.7”W, 1♂ ( MPEG 31055 View Materials ), 26.I.2007, pitfall traps; all previous specimens were collected by L.S. Carvalho, M. T. L.Avelino & M.P. Albuquerque; José de Freitas , Fazenda Nazareth, 04°47’58.1’’S 42°37’48.8’’W, 1♂ ( MPEG 31060 View Materials ), no date GoogleMaps   .

Etymology. The specific epithet is a patronymic in honor to the arachnologist Alexandre B. Bonaldo, in recognition of the importance of his contributions to spider systematics in South America.

Diagnosis. Males of Camillina bonaldoi   are similar to C. chilensis (Simon, 1902)   , C. kochalkai Platnick & Murphy, 1987   , C. madrejon Platnick & Murphy, 1987   , C. cui Platnick & Murphy, 1987 and C. cordoba Platnick & Murphy, 1987   , due to the long, filiform and coiled embolus, but differ by the helical shape of the embolus ( Figs 17–19 View FIGURES 15–21 ; 58–61 View FIGURES 58–63 ). Females resemble those of C. caldas Platnick & Shadab, 1982   by the copulatory ducts forming a curve over the primary spermathecae but differ due to median notch on the posterior median field margin ( Figs. 20–21 View FIGURES 15–21 , 62–63 View FIGURES 58–63 ). In C. caldas   the border of the median field is slightly curved in the ventral view (see Platnick & Shadab, 1982: fig. 65).

Description. Male (Holotype). Carapace pale brown with some darker stripes which are convergent and not continuous in the direction of the thoracic groove ( Fig. 15 View FIGURES 15–21 ); thoracic groove brown ( Fig. 15 View FIGURES 15–21 ); chelicerae pale brown ( Fig. 15 View FIGURES 15–21 ) with brown fangs. Endites pale brown with apex pale yellow. Labium brown. Sternum pale brown with dark brown margins. Trochanters, coxae and femora pale brown; patellae, tibiae, metatarsi and tarsi mostly brown, with orange parts. Abdomen dark gray with two greyish spots, scutum brown, ventral part of abdomen mostly whitish, region above to the epigastric groove pale brown. Epigastric area pale brown. Two circular white spots close to the spinnerets. Carapace suboval, cephalic region narrower, and posterior region truncate ( Fig. 15 View FIGURES 15–21 ). Sternum longer than wide. Labium longer than wide. Abdomen elliptical, longer than wide, with subtriangular scutum covering the anterior portion. Preening comb on metatarsi III and IV. Total length, not including spinnerets, 3.80. Carapace 1.57 long, 1.17 wide, 0.42 high. Abdomen 1.76 long, 1.11 wide, 1.11 high, micro granulated and bristly, with bristles larger on the anterior margin. Clypeus low, 0.05. Eye sizes: AME 0.10, ALE 0.08, PME 0.11, PLE 0.08, MOQ 0.25 length, 0.16 anterior width, 0.20 posterior width. Eye interdistances: AME–AME 0.02, AME–ALE 0.01, PME– PME 0.01, PME–PLE 0.01, AME–PME 0.04, ALE–PLE 0.04. Chelicerae 0.40 long, 0.19 wide, with three teeth on the promarginal furrow and three on the retromarginal furrow ( Fig. 52 View FIGURES 50–57 ). Leg measurements: I 4.00 (1.17, 0.60, 0.95, 0.72, 0.57); II 3.43 (0.93, 0.55, 0.79, 0.65, 0.50); III 3.10 (0.84, 0.48, 0.73, 0.63, 0.42); IV 4.64 (1.19, 0.72, 1.05, 1.14, 0.53). Leg formula IV-I-II-III. Leg spination: Leg I – femur d 1-1-0, p 0-0-1, r 0, v 0; tibia d 0, p 0, r 0, v 0; metatarsus d 0, p 0, r 0, v 0. II – femur d 1-1-0, p 0, r 0, v 0; tibia d 0, p 0, r 0, v 0; metatarsus d 0, p 0, r 0, v 2-0-0. III – femur d 1-1-0, p d1-d1-0, r d1-d1-0; tibia d0, p 2-1, r 1-1, v 1-2-2; metatarsus d 0, p 1-2-2, r 1-1-2, v 2-0-0. IV – femur d 1-1-0, p 0-0-1, r 0-0-1; tibia d 0, p 1-1, r 1-1, v 2-2-2; metatarsus d 0, p 1-2-2, r 1-2-1, v 0-2-2. Palp: Tibia as long as wide, a little smaller on the proximal margin, with a small extension on the apical prolateral margin; RTA almost the same size of tibia, pointed apically, flattened in the subquadrangular apex; spermophore extended on the tegulum basis with a prolateral C-shaped curve almost reaching the middle of tegulum.

Female (Paratype Piracuruca municipality, Piauí, Brazil; MPEG 31041). Coloration as in male, except when noted. Patellae, tibiae, metatarsi and tarsi I mostly dark brown, with orange parts; patellae, tibiae, metatarsi and tarsi II, III, and IV mostly brown, with orange parts. Shape of sternum, labium ( Fig. 53 View FIGURES 50–57 ) and abdomen as in male, except for the absence of scutum in the abdomen. Preening comb on metatarsi III and IV ( Fig. 55 View FIGURES 50–57 ). Epigastric area pale brown. Abdomen white close to the spinnerets. Total length, not including spinnerets, 3.95. Carapace 1.52 long, 1.16 wide, 0.33 high, micro granulated and bristly, bristles larger on the clypeus. Abdomen 2.01 long, 1.22 wide, 1.18 high, micro granulated and bristly, with bristles larger on the anterior margin. Clypeus low 0.04. Eye sizes: AME 0.07, ALE 0.07, PME 0.09, PLE 0.07, MOQ 0.24 length, 0.16 anterior width, 0.18 posterior width. Eye interdistances: AME–AME 0.05, AME–ALE 0.01, PME–PME 0.01, PME–PLE 0.03, AME–PME 0.08, ALE–PLE 0.03. Chelicerae 0.56 long, 0.24 wide, with four teeth on the promarginal furrow and three on the retromarginal furrow. Leg measurements: I 3.93 (1.18, 0.68, 0.84, 0.71, 0.53); II 3.32 (1.00, 0.58, 0.70, 0.57, 0.47); III 2.80 (0.81, 0.43, 0.58, 0.55, 0.44); IV 4.32 (1.23, 0.49, 1.11, 0.93, 0.57). Leg formula IV-I-II-III. Leg spination: Leg I—femur 1-1-0, p 0-0-1, r 0, v 0; tibia d 0, p 0, r 0, v 0; metatarsus d 0, p 0, r 0, v 0. II—femur d 1-1-0, p 0, r 0, v 0; tibia d 0, p 0, r 0, v 0; metatarsus d 0, p 0, r 0, v 2-0-0. III—femur d 1-1-0, p 0-d1-d1, r 0-0-1, v 0; patella r d1; tibia d 0, p 2-1, r 1-1, v 2-2-2; metatarsus d 0, p 1-2-2, r 1-1-2, v 2-2-0. IV—femur d 1-1-0, p 0-0-1, r 0-0-1; tibia d 0, p 1-1, r 1-1, v 2-2- 2; metatarsus d 0, p 1-2-2, r 1-2-1, v 2-2-0. Epigynum: Anterior margin with two large lobes; median field large on the anterior margin, with a median notch; short copulatory ducts arranged inclined to the posterior margin; primary spermathecae robust and globular, close to the median field.

Other material examined. BRAZIL: Piauí: 1♀, Piracuruca, Parque Nacional de Sete Cidades , 04°05’57.5”S 41°43’07”W, no date ( MPEG 31059 View Materials ) GoogleMaps   ; 1♀, 26.I.2007 ( MPEG 31056 View Materials ), pitfall traps   ; 1♂, 04°05’56.3”S 41°05’56.3”W, 26.I.2007 ( MPEG 31049 View Materials ), pitfall traps; all previous specimens were collected by L.S. Carvalho, M. T GoogleMaps   .L. Avelino & M.P. Albuquerque and were used in SEM sample.

Variation. Length (7♂) total 3.17–3.98, carapace 1.37–1.69, femur I 1.01–1.28; (5♀) total 4.02–4.62, carapace 1.48–1.70, femur I 1.08–1.34.

Distribution. Northern State of Piauí, Brazil.

Life history and habitat preferences. This species was collected in two localities in the Piauí State, Brazil: Parque Nacional de Sete Cidades (Piracuruca municipality, northeastern) and Fazenda Nazareth (José de Freitas municipality, northern). In these areas the predominant vegetation is the “Cerrado”, which is the richest and most threatened savanna in the world ( Silva et al., 2002). It consists of a complex of vegetation formations that have been classified based on their woody biomass and pure grasslands ( Vieira et al., 2019).

T

Tavera, Department of Geology and Geophysics

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Gnaphosidae

Genus

Camillina