Medionops murici, Sánchez-Ruiz, Alexander & Brescovit, Antonio D., 2017

Sánchez-Ruiz, Alexander & Brescovit, Antonio D., 2017, A new genus with seven species of the Subfamily Nopinae (Araneae, Caponiidae) from the Neotropical region, Zootaxa 4291 (1), pp. 117-143: 131-133

publication ID

https://doi.org/10.11646/zootaxa.4291.1.7

publication LSID

lsid:zoobank.org:pub:07981903-5F66-454D-8CF1-6E1077DB5333

persistent identifier

http://treatment.plazi.org/id/7B3E9B63-FF8B-FFA8-D3BA-37DEFAD8F883

treatment provided by

Plazi

scientific name

Medionops murici
status

new species

Medionops murici  new species

Figures 11–14View FIGURE 11View FIGURE 12View FIGURE 13View FIGURE 14

Types. Male holotype from Estacão Ecológica de Murici  (9°19'S 35°55'W), Murici  , Alagoas, Brazil, 13– 22.ix.2003, Equipe BIOTA, winkler, deposited in IBSP 99011View MaterialsGoogleMaps  . Paratypes: 1♂, 1♀, same data as holotype, pitfall trap, deposited in IBSP 99015View Materials and IBSP 99014View Materials respectivelyGoogleMaps  .

Additional material examined. BRAZIL: Paraíba: Areia, Reserva da Mata de Pau Ferro (6°57'S 35°45'W), 23–29.ix.1999, A.D. Brescovit, 1♂, 1imm. ( IBSP 99030View Materials), 1♂ ( IBSP 99028View Materials)GoogleMaps  . Pernambuco: Ipojuca, Mata de Oiteiro (8°23'S 35°3'W), 16.xi.2008, A. Costa, 1♂ ( IBSP 133582View Materials)GoogleMaps  . Alagoas: Murici  , Estacão Ecológica de Murici  (9°19'S 35°55'W), 13–22.ix.2003, Equipe BIOTA, pitfall trap, 1♀ ( IBSP 99020View Materials), 1♀ (genitalia, palp and legs for SEM) ( IBSP 99021View Materials), 1♂ ( IBSP 99010View Materials), 1♂ ( IBSP 99012View Materials), 1♂ ( IBSP 99016View Materials), 1♂ ( IBSP 99018View Materials), 1♂ ( IBSP 99013View Materials)GoogleMaps  . Maceió, Boa Vista , 17.xii.2005, G. Quintela, pitfall trap, 1♂ (palp and spinnerets for SEM) ( IBSP 85199View Materials)  .

Etymology. The specific name is a noun in apposition, derived from the type locality.

Diagnosis. Males and females resemble those of M. blades n. sp. and M. cesari (Dupérré)  n. comb. in having the abdomen with light whitish gray dorsal chevron pattern, but can be distinguished by having the proximal chevron mark thick and bigger than the others, with a longitudinal whitish gray line reaching the pedicel ( Figs 14View FIGURE 14 A –B). Crista and gladius absents ( Figs 11View FIGURE 11 C –D; 13B –C). Males with shorter embolus, without blade –shaped projections ( Figs 14View FIGURE 14 D, E); females with straight genital opening ( Fig. 14View FIGURE 14 C).

Description. Male (holotype): Total length 4.8. Carapace 2.2 long, 2.0 wide. Sternum 2.0 long, 1.9 wide. Leg measurements: I: 2.5; II: 2.4; III: 2.2; IV: 2.9. Carapace dark orange. Chelicerae, palps and legs orange; coxae and trochanters lighter. Endites, labium and sternum light orange. Abdomen dark gray with a pattern formed by five chevron light grey marks, the proximal chevron mark thick and bigger than the others, with a longitudinal whitish gray line reaching the pedicel ( Fig. 14View FIGURE 14 A). Anal tubercle and spinnerets lighter than abdomen. Crista and gladius absent ( Figs 11View FIGURE 11 C –D). Palp with a spherical oval, large bulb, the widest width of bulb is more than half of the cymbium length ( Figs 14View FIGURE 14 D –E); embolus longer than cymbium ( Figs 14View FIGURE 14 D –E), tip of embolus slightly curved, acuminate, with beveled opening ( Figs 12View FIGURE 12 C –F).

Female (paratype): Total length 5.0. Carapace 2.5 long, 2.3 wide. Sternum 2.0 long, 1.9 wide. Leg measurements: I: 2.6; II: 2.5; III: 2.3; IV: 3.0. Carapace, chelicerae, labium, legs, coxae, endites and sternum as in the male. Abdomen pattern as in the male ( Fig. 14View FIGURE 14 B). Anal tubercle and spinnerets lighter than abdomen. Crista and gladius absents ( Figs 13View FIGURE 13 B –C). External genitalia with a straight and narrow genital opening and wide sclerotization around spiracles ( Fig. 14View FIGURE 14 C). Internal genitalia with a slightly convex distal margin of receptaculum (dmr), without median concavity; uterus externus (ue) with wide proximal section; posterior plate strongly projected with a median invagination ( Figs 13View FIGURE 13 G –I); internal fold strongly sclerotized ( Fig. 13View FIGURE 13 J).

Distribution. Known only from the Brazilian States of Pernambuco, Alagoas and Paraíba ( Fig. 21View FIGURE 21).

IBSP

Instituto Biologico de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Caponiidae

Genus

Medionops