Modisimus cienaga, 2010

Huber, Bernhard A., Fischer, Nadine & Astrin, Jonas J., 2010, High level of endemism in Haiti’s last remaining forests: a revision of Modisimus (Araneae: Pholcidae) on Hispaniola, using morphology and molecules, Zoological Journal of the Linnean Society 158 (2), pp. 244-299 : 286-287

publication ID

https://doi.org/ 10.1111/j.1096-3642.2009.00559.x

persistent identifier

https://treatment.plazi.org/id/03D3130F-7A12-741D-DC25-BF22FD2947E6

treatment provided by

Valdenar

scientific name

Modisimus cienaga
status

SP. NOV.

MODISIMUS CIENAGA HUBER & FISCHER SP. NOV.

( Figs 26 View Figures 17–37 , 85, 87, 92 View Figures 83–93 , 100–103 View Figures 94–103 , 113 View Figures 104–114 , 182–184 View Figures 179–184 , 200 View Figure 200 )

Type: Male holotype from near La Ciénaga (19°03 ′ N, 70°53 ′ W; ~ 1000 m a.s.l.), La Vega Province, Dominican Republic; forest along river, among the dry leaves of a dead epiphyte on the ground, 9 November 2005 (B.A. Huber), in ZFMK ( DR 17 View Materials a) GoogleMaps .

Etymology: The species name refers to the type locality; it is used as a noun in apposition.

Diagnosis: Small, short-legged species, similar to M. culicinus (carapace pattern, Fig. 26 View Figures 17–37 ; palpal femur, Fig. 182 View Figures 179–184 ), but male chelicerae ( Fig. 183 View Figures 179–184 ) and male clypeus unmodified, distinctive procursus tip ( Figs 100, 103 View Figures 94–103 ).

Male (holotype): Total length, 1.2; carapace width, 0.55. Leg 1: 5.2 (1.4 + 0.2 + 1.4 + 1.6 + 0.5); tibia 2, 1.4; tibia 3, 0.7; tibia 4, 1.0. Tibia 1 L/d: 23. Habitus as in Figure 26 View Figures 17–37 , carapace light ochre-yellow, with three pairs of distinct dark spots and dark median Y-shaped mark, clypeus with a pair of brown stripes, narrowing towards chelicerae, sternum whitish; legs light ochreyellow, very indistinct darker rings subdistally on tibiae and femora, tips of femora and tibiae whitish; abdomen bluish grey with large black spots in a row on each side of heart and laterally; genital area light brown. Ocular area moderately elevated ( Fig. 85 View Figures 83–93 ); thoracic furrow distinct ( Fig. 87 View Figures 83–93 ). PME–PME, 45 Mm; PME diameter, 55 Mm; PME–ALE, 45 Mm; no AME. Sternum wider than long (0.4/0.3), unmodified. Chelicerae unmodified ( Fig. 183 View Figures 179–184 ). Palps as in Figure 182 View Figures 179–184 , coxa with light retrolateral apophysis, femur with rounded basal and more pointed distal ventral apophyses, procursus complex distally, with membranous and sclerotized structures ( Figs 100, 103 View Figures 94–103 ), bulb with simple distal apophysis and membranous dorsal structure ( Fig. 102 View Figures 94–103 ). Legs without spines and curved hairs; no short vertical hairs on femora; retrolateral trichobothrium on tibia 1 at 31%; prolateral trichobothrium apparently absent on tibia 1, but present on other tibiae; tarsus 1 with ~15 pseudosegments.

Variation: Tibia 1 in two other males: 1.3 and 1.4.

Female: In general similar to male, but dark rings on legs more distinct, and with additional rings on femora (proximally and medially) and tibiae (proximally). Tibia 1 in seven females: 0.96–1.10 (mean 1.03). Epigynum, very simple externally; dorsal view as in Figure 184 View Figures 179–184 , with contiguous pore plates.

Distribution: Known from type locality only ( Fig. 200 View Figure 200 ).

Material examined: Dominican Republic: La Vega Province, near La Ciénaga, 1♂, holotype above ; same data, 2♂ and 7♀ ( ZFMK; 1♂ used for SEM; chelicerae of other male lost; DR 17) ; same data, 3♀ and one juvenile, in pure ethanol ( ZFMK, DR 100-13 View Materials ) .

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Modisimus