Carapoia utinga

Huber, Bernhard A., 2018, The South American spider genera Mesabolivar and Carapoia (Araneae, Pholcidae): new species and a framework for redrawing generic limits, Zootaxa 4395 (1), pp. 1-178: 141-143

publication ID

https://doi.org/10.11646/zootaxa.4395.1.1

publication LSID

lsid:zoobank.org:pub:B43C234D-45C4-4A6D-9836-8A7524A5B291

persistent identifier

http://treatment.plazi.org/id/160AC713-C6F8-FF0B-2A9C-9965373C7AC5

treatment provided by

Plazi

scientific name

Carapoia utinga
status

sp. n.

Carapoia utinga  sp. n.

Figs 590–592View FIGURES 590–600, 637–643View FIGURES 637–643, 659–660View FIGURES 659–664

Diagnosis. Easily distinguished from known congeners by shape of procursus (heavily sclerotized rounded tip; Figs 639–640View FIGURES 637–643), by armature of male chelicerae (one pair of small frontal apophyses; Fig. 641View FIGURES 637–643), and by female internal genitalia (oval pore-plates and distinctive lateral sclerites connected to posterior diverging sclerites; Figs 643View FIGURES 637–643, 660View FIGURES 659–664).

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

Type material. BRAZIL: Pará: ♂ holotype, 1♀ paratype, UFMGAbout UFMG (21550–51), and 5♂ 7♀ paratypes, ZFMKAbout ZFMK (Ar 19255), Belém, Parque Estadual do Utinga, ‘site 2’ (1.433°S, 48.410°W), 25 m a.s.l., 5–6.x.2016 (B.A. Huber, L.S. Carvalho).

Other material examined. BRAZIL: Pará: 7♀ in pure ethanol, ZFMKAbout ZFMK (Br16-229), same data as types. 

Description. Male (holotype)

MEASUREMENTS. Total body length 2.8, carapace width 1.2. Distance PME-PME 80 µm, diameter PME 110 µm, distance PME-ALE 80 µm, distance AME-AME 20 µm, diameter AME 40 µm. Sternum width/length: 0.8/ 0.55. Leg 1: 28.0 (6.4 + 0.4 + 6.7 + 12.8 + 1.7), tibia 2: 4.0, tibia 3: 3.0, tibia 4: 3.8; tibia 1 L/d: 74. Femora 1–4 width (at half length): 0.20, 0.23, 0.26, 0.23.

COLOR (in ethanol). Carapace ochre with brown median band and lateral margins, ocular area only laterally brown; clypeus lower part dark; sternum medially brown, lateral posterior parts light ochre; legs light brown, without dark rings, tips of femora and tibiae lighter; abdomen greenish gray, many internal dark marks dorsally and laterally, ventrally with dark brown genital plate, light brown book-lung covers, dark median band behind genital plate, indistinct light brown plate in front of spinnerets.

BODY. Habitus as in Figs 590–591View FIGURES 590–600; ocular area raised; carapace with distinct median furrow; clypeus unmodified; sternum unmodified.

CHELICERAE. As in Fig. 641View FIGURES 637–643, with one pair of small frontal apophyses, without modified hairs.

PALPS. As in Figs 637–638View FIGURES 637–643; coxa large relative to other segments, with retrolateral apophysis; trochanter barely modified; femur with large retrolatero-ventral process proximally, small dorsal hump; procursus very simple, with heavily sclerotized rounded tip ( Figs 639–640View FIGURES 637–643); genital bulb with slender pointed apophysis and large mostly membranous dorsal protrusion.

LEGS. Without spines, without curved hairs, few vertical hairs; retrolateral trichobothrium on tibia 1 at 3.5%; prolateral trichobothrium present on tibia 1; tarsus 1 with ~25 pseudosegments, distally distinct.

Male (variation). Tibia 1 in five other males: 6.9–7.7 (mean 7.3).

Female. In general similar to male ( Fig. 592View FIGURES 590–600). Tibia 1 in six females: 4.4–5.5 (mean 4.9). Epigynum as in Figs 642View FIGURES 637–643, 659View FIGURES 659–664; anterior plate semicircular, dark brown, weakly protruding; with pair of diverging sclerites in membrane behind anterior plate; barely visible posterior plate. Internal genitalia as in Figs 643View FIGURES 637–643, 660View FIGURES 659–664, with oval pore-plates and distinctive lateral sclerites connected to posterior diverging sclerites.

Natural history. The spiders were found in the leaf litter, at the basis of trees, and in small cavities of the ground. When disturbed they did not vibrate but ran away.

Distribution. Known from type locality in Pará state ( Brazil) only ( Fig. 742View FIGURE 742).

UFMG

Universidade Federal de Minas Gerais

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Carapoia