A revision of the Neotropical spider genus Nops MacLeay (Araneae: Caponiidae) with the first phylogenetic hypothesis for the Nopinae genera
Author
Sánchez-Ruiz, Alexander
Author
Brescovit, Antonio D.
text
Zootaxa
2018
2018-06-01
4427
1
1
121
journal article
29978
10.11646/zootaxa.4427.1.1
c87fedef-eea4-42c6-998a-2a01b2c5839d
1175-5326
1271779
A13A4AB4-0E53-463B-A835-72C193728BB5
Nops navassa
,
new species
Figures 27J‒L
; 28A‒F
Types
. Male
holotype
from Forest west of lighthouse (18°23′91″N, 75°00′81″W),
Navassa Island
,
75m
,
30.vii‒4.viii.1998
, W.E. Steiner & J.M. Swearingen, deposited in MNHNCu. Female
paratype
from
Central
forest area (18°23′99″N, 75°00′67″W),
Navassa Island
,
70m
,
26.vii‒4.viii.1998
, W.E. Steiner & J.M. Swearingen, deposited in MNHNCu.
Etymology
. The specific name is a noun in apposition, derived from the
type
locality.
Diagnosis
. Males resemble similar congeners
Nops pallidus
n. sp.
and
Nops siboney
(
Figs 29B‒C
,
31B‒C
) by having a short and curved embolus with a differentiated texture on the surface of median part, but can be distinguished by the wider embolar tip and by lacking the sclerotized margin (
Fig. 28B‒C
). Females with receptaculum without invagination and uterus externus with wide base (
Fig. 28F
).
Description
.
Male
(
holotype
): Carapace, chelicerae, labium, legs, endites and sternum yellowish orange (
Fig. 28A
); coxae lighter. Abdomen light gray, dorsal pattern as in figure
6I
but almost unnoticeable, lighter ventrally. Anal tubercle and spinnerets light gray. Total length 9.2. Carapace 5.8 long, 3.8 wide. Sternum 3.9 long, 3.6 wide. Leg measurements: I: 3.9; II: 3.85; III: 3.6; IV: 4.25. Posterior unpaired claws short (
Fig. 27J‒L
). PLS longer than PMS. Palp with embolus shorter than palpal tibia, slightly curved, with a differentiate texture on the surface of median part (
Fig. 28B‒C
); wide embolar tip with two ventral short extensions.
Female
(
paratype
): Carapace, chelicerae, labium, legs, coxas, endites and sternum as in male. Abdomen as in male (
Fig. 28D
). Anal tubercle and spinnerets light gray. Total length 9.4. Carapace 6.0 long, 3.9 wide. Sternum 4.05 long, 3.8 wide. Leg measurements: I: 4.2; II: 4.0; III: 3.8; IV: 4.5. Posterior unpaired claws and PLS as in male. External genital area with weakly sclerotized anterior plate and strongly sclerotized lep, remarkable ess (
Fig. 28E
). Internal genitalia with receptaculum without invagination and uterus externus with wide base (
Fig. 28F
).
Natural history
.
Holotype collected with pitfall cup traps
in deep leaf litter, mixed interior forest on limestone; paratype collected with yellow pans in gap of mixed forest on limestone.
Distribution
. Known only from
Navassa Island
(
Fig. 25A
).