Salticidae (Arachnida: Araneae) from the Department of Córdoba in the Caribbean Region of Colombia
Author
Bedoya-Roqueme, Edwin
Author
Lopez-Villada, Samia
text
Peckhamia
2020
2020-10-22
224
1
1
23
journal article
10.5281/zenodo.7171029
1944-8120
7171029
1A6C3D67-61D1-422F-BC21-38EE6B202D4F
3.
Titanattus cretatus
Chickering 1946
;
Figures 8-11
Titanattus cretatus
Chickering 1946
.
Material examined
.
2♀
[
Figures 8-11
],
Colombia
,
Córdoba
,
San Antero
:
Caño Mocho
[
N9.4107°
,
W75.7920
], [
2m
]
23 Aug 2018
, mangrove forest,
Rhizophora mangle
L
. tree, shaking foliage, E
.
BedoyaRoqueme
coll
. (
LEUC
;
OARA
–167).
Type
material deposited in the
MCZ
not examined
.
Diagnosis
. According to
Chickering (1946)
Titanattus cretatus
can be easily distinguished from other species by the vertical, parallel chelicerae without special features, the moderately robust, evenly curved fang, the distinctive fang-groove with four promarginal with teeth fairly well spaced, occupying the greater part of the margin, and with four retromarginal teeth so closely crowded that their bases appear to be joined (see
Chickering 1946
, fig. 338). Posterior margin with a distinct lip but no definite notch. Two large loops are apparent on either side of the epigynal plate (
Figures 10-11
).
Figures 8-11.
Female
Titanattus cretatus
.
8,
Habitus, dorsal view.
9,
Habitus, ventral view.
10,
Epigyne, ventral view.
11,
Epigyne, dorsal view.
Comparative description of specimens
. Prosoma is wide just behind PLE which project slightly beyond the dorsal margin of the carapace which is as tall as wide. The ascent from AME to the PLE is quite steep. A steep posterior declivity descends almost immediately behind the PLE to the posterior margin (
Figure 8
). The carapace is considerably depressed between the PLE which stand on low tubercles, bearing considerable hair and numerous bristles. The carapace is long and slender in the ocular region, with the ventral margin considerably wider than the dorsal margin, widest a short distance behind the PLE (
Figure 8
), with much sub-chitinous guanin, especially in the interocular area, and with a short median longitudinal thoracic groove a short distance behind the PLE (
Figure 8
). The chelicerae are vertical, parallel, without special features, the fang moderately robust, evenly curved, the fang-groove distinct with four promarginal teeth fairly well spaced and occupying the greater part of the margin, and four retromarginal teeth so closely crowded that their bases appear to be joined (see
Chickering 1946
; fig 338). Posterior margin of the epigyne with a distinct lip but no definite notch, two J-shaped loops show clearly near the middle at sides of the plate (
Figures 10-11
).
Measurements
(mm; specimens from
Colombia
).
Two females
: TL= 3.78-3.83; CL= 1.65-1.67; CW= 1.22- 1.25; AL= 1.75-179;
AERW
= 1.16-18;
PERW
= 1.03-1.1; LOQ= 1.03-1.05;
PMEP
=0.35-0.37; eyes of the second row separated from the ALE by
0.17-0.19 mm
and from the PLE by
0.26-0.28 mm
.
Distribution
.
Titanattus cretatus
is known from
Colombia
(Department of
Córdoba
),
Panama
(female
holotype
from Canal Zone Biological Area).