Nasutonops xaxado, Brescovit, Antonio D. & Sanchez-Ruiz, Alexander, 2016

Brescovit, Antonio D. & Sanchez-Ruiz, Alexander, 2016, Descriptions of two new genera of the spider family Caponiidae (Arachnida, Araneae) and an update of Tisentnops and Taintnops from Brazil and Chile, ZooKeys 622, pp. 47-84 : 59-62

Taxon classification Animalia Araneae Caponiidae

Nasutonops xaxado sp. n. Figures 8, 9, 10, 11 A–B, 12 H–J

Types.

Male holotype and female paratype from Serra Talhada (7°59'9"S, 38°17'45"W), Pernambuco, Brazil, 2008-2009, H. Amorin col., deposited in IBSP 166987 and 166988, respectively.

Etymology.

The specific name is a nickname of the type locality, known as the ‘’ Capital do Xaxado’’. The Xaxado is a popular dance in this region.

Diagnosis.

Females of Nasutonops xaxado sp. n. resemble those of Nasutonops chapeu sp. n. in lacking the connection of a pair of sclerotized bars in the female internal genitalia (Fig. 11 F–G), but can be distinguished by the enlarged anterior ends of the pair of elongate sclerotized bars and the short posterior ends (Fig. 11 A–B). Males differ by their shorter embolus and curved tip (Figs 8F, 9 J–K).

Male (Holotype). Total length 3.80, with clypeal horn. Carapace 1.7 long, 1.2 wide. Coloration: carapace orange-reddish, except apex of endites and labium white, legs and palps orange. Eye median diameters 0.3, interdistances 0.15. Leg measurements: I: femur.1.1/ patella 0.5/ tibia 0.8/ metatarsus 0.7/ tarsus 0.4/ total 3.5; II: 1.1/ 0.5/ 0.7/ 0.7/ 0.4/ 3.4; III: 0.9/ 0.5/ 0.6/ 0.6/ 0.5/ 3.1; IV: 1.1/ 0.6/ 1.0/ 0.9/ 0.6/ 4.2. Abdomen gray with epiandric plate and spinnerets orange. Palpal cymbium not covered with thick layer of distal setae (Fig. 9I).

Female (allotype). Total length 4.5, with clypeal horn. Carapace length 1.7 width 1.2. Coloration as in male. Eye median diameters 0.3, interdistances 0.2. Leg measurements: I: femur.1.0/ patella 0.5/ tibia 0.8/ metatarsus 0.6/ tarsus 0.5/ total 3.4; II: 1.0/ 0.5/ 0.7/ 0.7/ 0.5/ 3.4; III: 0.9/ 0.4/ 0.6/ 0.6/ 0.4/ 2.9; IV: 1.0/ 0.5/ 0.8/ 0.9/ 0.5/ 3.7. Internal genitalia with enlarged anterior ends and short posterior ends of the pair of sclerotized bars (Figs 11 A–B, 12 H–J).

Note.

Left metatarsus and tarsus IV of male absent.

Other material examined.

BRAZIL: Pernambuco, Serra Talhada (7°59'9"S, 38°17'45"W), 1♂ 1♀, 2008-2009, H. Amorin col. (IBSP 166989; 166990, respectively, both partially used in SEM).

Distribution.

Known only from the type locality in the Brazilian Caatinga.

Natural history.

The specimens were collected in soil with pitfall traps.