Matta zuiuda Brescovit & Cizauskas 2019, sp. n.
Creators: name: Brescovit, Antonio D.
name: Cizauskas, Igor
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Tetrablemmidae
Matta
Matta zuiuda

description: Matta zuiuda sp. n.
Figures 1 ̄5, 30A
Types. Male holotype from Cave ICPA_327 (20°22'S; 45°37'W), 17̄ 29/VI /2013, A.P. Bueno et al., deposited in IBSP 186527. Female paratype from Cave ICPA _701 (20°22'28''S; 45°36'29''W), 18/II ̄ 09/III/2013, A.P. Bueno et al., Pains, Minas Gerais, Brazil, deposited in IBSP 186514.
Other material examined. BRAZIL. Minas Gerais: Arcos, Cave Bocaininha _C3 (20°17'55''S; 45°36'42''W) VII/2009, L.F.O. Bernardi col., 1♀ (IBSP 196117); Cave SM _007 (20°16'50''S; 45°35'52''W), 13/I/2013, L.G. Soares col., 1♂ (IBSP 188916); Cave SM _009 (20°17'18''S; 45°35'51''W), 16/III/2 0 12, L.G.S. Soares col., 1♂ 1♀ (IBSP 186377); Cave SM _011 (20°17'16''S; 45°35'51''W) 13/I/2013. L.G. Soares col., 1♂ 3♀ (IBSP 188915), Pains, 2♀ (IBSP 186403); 3♀ (IBSP 186408); 4♀ (IBSP 186404); 1♂ (IBSP 186405); 1♂ 1♀ (IBSP 186407; photo), all collected in caves by R. A. Zampaulo col.; Cave AGR_006, 04–07/V/2015, F. Bondezan col., 1♀, (IBSP 188274); Cave AGR_014 (20°19'17''S; 45°40'25''W) 13/XI–10/VIII/2015, 1♂ (IBSP 188238); 1♂ (IBSP 188240); Cave AGR_015 (20°18'60''S; 45°40'11''W) 13/XI–10/VIII/2015, 1♂ (IBSP 188237); Cave AGR_019 (20°19'30''S; 45°40'25''W) 04–07/V/2015, 1♀ (IBSP 188244); Cave AGR_021, 04–07/V/2015, 1♀ (IBSP 188245); Cave AGR_022 (20°19'24''S; 45°40'20''W) 04–07/V/2015, 1♂ (IBSP 188248); Cave AGR_023 (20°19'24''S; 45°40'23''W) 04–07/V/2015, 1♂ (IBSP 188247); 13/XI–14/XII/2015, 1♂ (IBSP 188241); Cave AGR_026/028 (20°19'18''S; 45°40'23''W) 04–07/V/2015, 1♀ (IBSP 188243); Cave AGR_041, 13/XI–10/VIII/2015, 1♀ (IBSP 188239); Cave AGR_042 (20°19'50''S; 45°38'7''W) 04–07/V/2015, 1♀ (IBSP 188246) 04–07/V/2015, 1♂ 2♀ (IBSP 188242), all collected by Equipe Spelayon col.; Cave AMG _024 (20°22'30''S; 45°37'3''W) 19/VII/2014, Bueno et al. col., 1♂, (IBSP 196120); Cave Gruta das Duas Bocas (20°22'1''S; 45°40'39''W) 01/IV/2009, R.A. Zampaulo col., 1♀ (IBSP 196116); Cave Gruta do Carlinhos (20°24'7''S; 45°40'22''W) 2♀ (IBSP 18 1779); 30/III/ 2013, M.P.A. Oliveira col., 1♂ (IBSP 181790); Cave ICPA _036 (20°22'28''S; 45°36'26''W) 15–27/VII/2014, 1♀ (IBSP 196119); Cave ICPA _ 636 (20°22'13''S; 45°35'38''W) 2♂, (IBSP 196122) 15–27/VII/2014, 1♀ (IBSP 196121); Cave ICPA _639 (20°22'12''S; 45°36'6''W) 15–27/VII/2014, 2♀ (IBSP 196118); Cave ICPA _645 (20°22'12''S; 45°36'7''W) 25/III–06/IV/2013, 1♀ (IBSP 196124); Cave ICPA _678 (20°22'33''S; 45°36'26''W) 15– 27/VII/2014, 1♀ (IBSP 196123); Cave ICPA _003 (20°22'25''S; 45°37'4''W) 05/VIII–04/X/2013, 1♀ (IBSP 186533); Cave ICPA _126 (20°22'24''S; 45°37'6''W) 04–21/XII/2012, 2♂ (IBSP 186529); Cave ICPA _131 (20°22'31''S; 45°37'4''W) 04–21/XII/2012, 1♀ (IBSP 186531); Cave ICPA _132 (20°22'31''S; 45°37'4''W) 17–29/ VI /2013, 1♂ (IBSP 186528); Cave ICPA_142 (20°22'17''S; 45°36'34''W) 29/VII–10/VIII/2013, 2♀ (IBSP 186522); Cave ICPA _143 (20°22'18''S; 45°36'34''W) 29/VII–10/VIII/2013, 1♀ (IBSP 186524), all collected by A.P. Bueno et al. col.; Cave ICPA _147 (20°22'14''S; 45°36'41''W) 24–27/IV/2012, B.F. Takano col., 1♂ (IBSP 186417); 1♂ 1♀ (IBSP 186418); Cave ICPA _148 (20°22'22''S; 45°36'31''W) 29/VII–10/VIII/2013, 2♀ (IBSP 186525); Cave ICPA _ 279 (20°22'34''S; 45°37'15''W) 1♂ (IBSP 186532); 17–29/VI /2013, 2♂ (IBSP 186530); Cave ICPA_671 (20°22'13''S; 45°36'16''W) 29/VII–10/VIII/2013, 1♀ (IBSP 186523); Cave ICPA _ 701 (20°22'28''S; 45°36'29''W) 1♀ (IBSP 186515); 18/II–09/III/2013, 1♀ (IBSP 186516), all collected by A.P. Bueno et al. col.; Cave SM _155 (20°21'54''S; 45°35'38''W) 12/IX/2013, Equipe Spelayon col. 1♀ (IBSP 186388); Cave SM _49 (20°21'51''S; 45°35'29''W) 08/I/2013, L.G. Soares col., 1♂ (IBSP 188917); Cave SM _61 (20°21'3''S; 45°35'24''W) 14/III/2012, L.G. Soares col., 1♂ (IBSP 188918); Cave SM _73 (20°20'50''S; 45°35'9''W) 12/VIII/ 2012, L.G. Soares col., 1♂ 2♀ (IBSP 188919); Cave SM _85 (20°21'4''S; 45°35'35''W) 13/VIII/2012, 1♂ (IBSP 188921); 14/III/2 0 12, 1♂ (IBSP 188920), all collected by L.G. Soares col.; Cave SPA_030 (20°18'24''S; 45°35'48''W) 21/VIII/2013, F. O. Borges & M.T.M. Souza col., 1♀ (IBSP 186373); Cave SPA_036 (20°18'25''S; 45°35'46''W) 05/II/2014, F. O. Borges & M. Barcelos col., 1♀ (IBSP 186374); 22/VIII/2013, F. O. Borges & M. T. M. Souza col., 1♂ 1♀ (IBSP 186398); Cave SPA_038 (20°18'22''S; 45°35'45''W) 22/VIII/2013, F. O. Borges & M. T. M. Souza col., 1♀ (IBSP 186372); Cave MIC _023 (20°25'40''S; 45°37'16''W) 16/XI–11/XII/2015, 1♂ (IBSP 196151); 23–28/V/2015, 1♂ (IBSP 196161); Cave MIC _024 (20°25'40''S; 45°37'17''W) 23–28/V/2015, 1♀ (IBSP 196160); Cave MIC _025 (20°25'40''S; 45°37'17''W) 16/XI–11/XII/2015, 2♀ (IBSP 196149); 23–28/V/2016, 2♂ 5♀ (IBSP 196157); Cave MIC _ 026, 2015, 1♀ (IBSP 196163); Cave MIC _030, 23–28/V/2015, 1♂ 5♀ (IBSP 196162); Cave MIC _ 030 (20°25'45''S; 45°37'15''W) 3♀ (IBSP 196154) 16/XI–11/XII/2015, 1♂ 2♀ (IBSP 196152); Cave MIC _032 (20°26'9''S; 45°37'17''W) 16/XI–11/XII/2015, 1♂ 2♀ (IBSP 196159); Cave MIC _033, 23–28/V/2015, 1♂ (IBSP 196150); Cave MIC _057 (20°25'44''S; 45°43'2''W) 9–15/VI /2015, 1♀ (IBSP 196155); 16/XI–11/XII/2015, 1♀ (IBSP 196156); Cave MIC _058, 9–15/VI /2015, 1♀ (IBSP 196153); Cave MIC_083, 16/ XI–11/XII/2015, 1♀ (IBSP 196158), all collected by Equipe Spelayon col.; Piunhi, Cave ICCA _016 (20°20'42''S; 45°50'52''W) 04–22/V/2014, 1♂ 1♀ (IBSP 186463); Cave ICCA _ 018 (20°20'42''S; 45°50'52''W) 1♀ (IBSP 186464); 1♀ (IBSP 186430); 04–22/V/2014, 2♂ (IBSP 186465); 04–22/XI/2013, 1♀ 1♂ (IBSP 186431); Cave ICCA _024 (20°20'42''S; 45°50'52''W) 04–22/V/2014, 1♂ 1♀ (IBSP 186466); Cave ICCA _025 (20°20'42''S; 45°50'54''W) 04–22/V/2014, 1♀ (IBSP 186467); 04–22/XI/2013, 2♀ (IBSP 186433); Cave ICCA _026 (20°20'42''S; 45°50'54''W) 04–22/XI/2013, 1♂ (IBSP 186434); Cave ICCA _035 (20°20'43''S; 45°50'53''W) 04–22/ V/2014, 1♂ (IBSP 186468); Cave ICCA _039 (20°20'44''S; 45°50'52''W) 04–22/XI/2013, 1♀ (IBSP 186435); Cave ICCA _041 (20°20'45''S; 45°50'51''W) 04–22/V/2014, 1♀ (IBSP 186469); 1♀ (IBSP 186436); 04–22/XI/2013, 1♂ 1♀ (IBSP 186437); Cave ICCA _043 (20°20'44''S; 45°50'51''W) 0 4–22/V/2014, 1♀ (IBSP 186470); Cave ICCA _046 (20°20'48''S; 45°50'52''W) 04–22/V/2014, 1♀ (IBSP 186471); Cave ICCA _048 (20°20'46''S; 45°50'55''W) 04–22/XI/2013, 1♂ (IBSP 186438); Cave ICCA _054 (20°20'47''S; 45°50'56''W) 04–22/V/2014, 1♂ 1♀ (IBSP 186472); Cave ICCA _ 074 (20°20'47''S; 45°50'50''W) 1♀ (IBSP 186473); 2♀ (IBSP 186475); 04–22/V/ 2014, 1♂ 1♀ (IBSP 186474); 04–22/XI/2013, 1♂ 1♀ (IBSP 186439); Cave ICCA _077 (20°20'50''S; 45°50'50''W) 04–22/V/2014, 1♂ 1♀ (IBSP 186476); Cave ICCA _079 (20°20'50''S; 45°50'50''W) 04–22/V/2014, 1♀ (IBSP 186477); Cave ICCA _081 (20°20'50''S; 45°50'50''W) 04–22/V/2014, 1♀ (IBSP 186478); Cave ICCA _083 (20°20'50''S; 45°50'51''W) 04–22/V/2014, 1♀ (IBSP 186479); 04–22/XI/2013, 1♂ (IBSP 186440); Cave ICCA _087 (20°20'49''S; 45°50'49''W) 04–22/XI/2013, 1♂ (IBSP 186441); 04–22/V/2014, 1♂ (IBSP 186480); Cave ICCA _089 (20°20'48''S; 45°50'49''W) 04–22/V/2014, 1♀ (IBSP 186481); Cave ICCA _090 (20°20'52''S; 45°50'49''W) 04–22/XI/2013, 1♀ (IBSP 186442); Cave ICCA _095 (20°20'52''S; 45°50'46''W) 04–22/V/2014, 1♂ (IBSP 186482) 04–22/XI/2013, 1♂ (IBSP 186443); Cave ICCA _097 (20°20'53''S; 45°50'46''W) 0 4–22/V/2014, 1♀ (IBSP 186483) 1♀ (IBSP 186484) 04–22/XI/2013, 1♂ (IBSP 186444); Cave ICCA _101 (20°20'53''S; 45°50'44''W) 04–22/XI/2013, 1♀ (IBSP 186445) 04–22/V/2014, 1♂ (IBSP 186485); Cave ICCA _106 (20°20'53''S; 45°50'44''W) 04–22/V/2014, 4♂ (IBSP 186486); Cave ICCA _135 (20°20'59''S; 45°50'28''W) 04–22/
V/2014, 1♀ (IBSP 186487); Cave ICCA _141 (20°20'51''S; 45°50'41''W) 04–22/XI/2013, 1♀ (IBSP 186446); Cave ICCA _143 (20°20'53''S; 45°50'36''W) 04–22/XI/2013, 2♀ (IBSP 186447) 2♀ (IBSP 186448) 04–22/V/2014, 1♂ (IBSP 186488); Cave ICCA _144 (20°20'53''S; 45°50'36''W) 04–22/XI/2013, 1♀ (IBSP 186449) 04–22/V/2014, 1♂ (IBSP 186489); Cave ICCA _146 (20°20'54''S; 45°50'36''W) 13–21/I/2014, 1♀ (IBSP 186461); Cave ICCA _148 (20°20'53''S; 45°50'37''W) 04–22/V/2014, 2♀ (IBSP 186490); Cave ICCA _154 (20°20'58''S; 45°50'40''W) 04–22/XI/2013, 1♀ (IBSP 186450) 04–22/V/2014, 1♂ (IBSP 186491); Cave ICCA _156 (20°20'55''S; 45°50'42''W) 04–22/XI/2013, 1♀ (IBSP 186451); Cave ICCA _166 (20°20'58''S; 45°50'40''W) 04–22/ XI/2013, 1♀ (IBSP 186452); 04–22/V/2014, 1♂ 1♀ (IBSP 186492); Cave ICCA _197 (20°21'0''S; 45°50'27''W) 04–22/V/2014, 1♀ (IBSP 186494); 04–22/XI/2013, 1♂ (IBSP 186453); Cave ICCA _201 (20°21'1''S; 45°50'26''W) 04–22/XI/2013, 3♂ (IBSP 186454); Cave ICCA _208 (20°20'57''S; 45°50'39''W) 04–22/XI/2013, 1♀ (IBSP 186455); Cave ICCA _209 (20°21'1''S; 45°50'25''W) 04–22/V/2014, 1♀ (IBSP 186495); 1♂ (IBSP 186496) 04–22/ XI/2013, 1♂ (IBSP 186456) 1♂ (IBSP 186457); Cave ICCA _210 (20°20'57''S; 45°50'41''W) 0 4–22/XI/2013, 1♀ (IBSP 186458); 04–22/V/2014, 1♂ 1♀ (IBSP 186497); Cave ICCA _211 (20°21'0''S; 45°50'25''W) 04–22/V/2014, 1♂ (IBSP 186498); Cave ICCA _252 (20°20'57''S; 45°50'37''W) 04–22/V/2014, 1♀ (IBSP 186500); 1♂ (IBSP 186499); 04–22/XI/2013, 1♀ (IBSP 186459); Cave ICCA _567 (20°20'42''S; 45°50'55''W) 04–22/V/2014, 1♀ (IBSP 186501); Cave ICCA _569 (20°20'45''S; 45°50'50''W) 04–22/V/2014, 1♀ (IBSP 186502) Cave ICCA _571 (20°20'45''S; 45°50'52''W) 13–21/I/2014, 1♂ (IBSP 186462); Cave ICCA _578 (20°20'56''S; 45°50'38''W) 04–22/ V/2014, 1♀ (IBSP 186503) 1♀ (IBSP 186503) 04–22/XI/2013, 1♀ (IBSP 186460) 1♀ (IBSP 186460), all collected by Equipe Carste col.
Etymology. The specific name is a noun in apposition that refers to an expression used by people in the Brazilian State of Minas Gerais meaning “large eyes”. The name was used in reference to the size of the eyes in Matta zuiuda relative to other species in the Quadrilátero Ferrífero Iron Region.
Diagnosis. Matta zuiuda is separated from most other Matta species by having two large eyes and ventral cheliceral projections (see Lehtinen, 1981, figs 297, 300; Brescovit, 2005, figs 1, 4). Matta zuiuda is further separated from M. hambletoni and M. angelomachadoi by the less elongate posterior region of carapace (Fig. 2B, compare with Lehtinen, 1981, fig. 297) and by females with a seminal receptacle bearing a slender distal area (Fig. 1F, see Lehtinen, 1981, fig. 310; Brescovit, 2005, fig. 21).
Description. Male (Holotype, IBSP 186527). Cephalothorax and abdomen red-brown. Legs orange with yellow patellae (Fig. 1A). Total length 1.34. Carapace projected, 5.3 long, 0.47 wide, with rugose surface (Figs 2A ̄B). Sternal surface reticulate. Clypeus oblique, long, five times the diameter of the eyes (Fig. 2B). Eye diameters and interdistances: AME 0.04, AME-AME 0.08; with smooth subocular furrow (Fig. 2C). Cheliceral apophysis short, conical, with long setae and translucent median lamina (Figs 2D ̄F). Leg measurements: I—femur 0.42/ patella 0.15/ tibia 0.32/ metatarsus 0.2/ tarsus 0.22/ total 1.31; II—0.39/ 0.14/ 0.29/ 0.19/ 0.24/ 1.25; III— 0.32/ 0.13/ 0.24/ 0.18/ 0.22/ 1.09; IV—0.43/ 0.15/ 0.39/ 0.26/ 0.21/ 1.44. Leg formula 4123. Leg I, spination: tibiae with two or three distal, prolateral, and retrolateral spines; metatarsi with small, ventral, basal spine and retrolateral basal spine on tubercle (Fig. 4A ̄B). Trichobothria with a single, large transverse plate opposite a pair of smaller, short plates (Fig. 4E). Abdomen ovoid with a large sclerotized plate covering the dorsal surface (Fig. 1D); ventrally covered by four sclerotized plates (Fig. 1A). Abdominal plates: a large pulmonary plate with rounded anterior margin, surrounding pedicel and oval book-lung plates, followed posteriorly by a narrow postgenital plate, largest preanal plate, and conical anal plate surrounding spinnerets; laterally with four pairs of narrow plates, most ventral pair shorter than others (Fig. 4D), and a line of four epiandrous spigots (Fig. 4E). Male palp: femur with four long setae and bearing median short and projected plates (Fig. 4C); tibia strongly swollen, rounded posteriorly; cymbium small; bulb pear-shaped, with conductor with elevated border, involving; the base of the long and sinuous embolus, enlarged at the apex, with an acute, laminar projection (Figs 1B ̄C, 3ĀF).
Female (Paratype, IBSP 186514). Coloration as in male. Total length 1.38. Carapace as in male (Fig. 1D), 0.53 long, 0.46 wide. Clypeus and sternum as in male (Fig. 5D). Eye diameters and interdistances: AME 0.04, AME- AME 0.08. Chelicerae with small basal and conical apophysis, with ventral translucent hyaline keel, as in male (Figs 5A ̄B). Leg measurements: I—femur 0.44/ patella 0.14/ tibia 0.31/ metatarsus 0.2/ tarsus 0.25/ total 1.34; II—0.43/ 0.14/ 0.25/ 0.2/ 0.23/ 1.25; III—0.31/ 0.13/ 0.23/ 0.18/ 0.22/ 1.24; IV—0.45/ 0.16/ 0.4/ 0.24/ 0.26/ 1.51. Leg formula 4123. Pedipalpal tarsus ending in acuminate, smooth pit (Fig. 5H). Abdomen with plates as in males, but the lateral largest (Fig. 5E ̄F). Vulvae externally with V-shaped receptacle (Fig. 1E); narrow post genital plate and thin copulatory opening (Fig. 5G). Internally with enlarged receptaculum and narrow copulatory ducts; central process straight, elongate and with a globose dorsal fold of the uterus externus (Fig. 1F).
Natural history. Matta zuiuda is known from caves in the carbonate and ferruginous formations. While all specimens have been collected in caves thus far, we hypothesize that they also occur in the hypogeous edaphic environment.
Distribution. Caves in the State of Minas Gerais, Brazil (Fig. 30A).
description: Published as part of Brescovit, Antonio D. & Cizauskas, Igor, 2019, Seven new species of the spider genus Matta Crosby from caves in the State of Minas Gerais, Brazil (Araneae, Tetrablemmidae), pp. 401-444 in Zootaxa 4559 (3) on pages 403-411, DOI: 10.11646/zootaxa.4559.3.1, http://zenodo.org/record/2627047