Calapnita vermiformis Simon, 1892

Bernhard A. Huber, 2017, Revision and cladistic analysis of the Southeast Asian leaf-dwelling spider genus Calapnita Simon (Araneae, Pholcidae), Zootaxa 4219 (1), pp. 1-63 : 44-45

publication ID

https://doi.org/ 10.5281/zenodo.273086

publication LSID

lsid:zoobank.org:pub:0FA0F51A-3868-4F13-A93D-E34CA5A689F8

DOI

https://doi.org/10.5281/zenodo.6040241

persistent identifier

https://treatment.plazi.org/id/03B66F68-8519-071C-FF6A-FA492AD3FB96

treatment provided by

Plazi

scientific name

Calapnita vermiformis Simon, 1892
status

 

Calapnita vermiformis Simon, 1892 View in CoL

Figs 126–127 View FIGURES 120 – 127 , 196–219 View FIGURES 188 – 203 View FIGURES 204 – 219

Calapnita vermiformis Simon, 1892: 42 View in CoL , pl. 2, figs 5–6 (♂).

Micromerys View in CoL vermiformis— Simon 1893: 474, fig. 463.

Calapnita View in CoL vermiformis— Deeleman-Reinhold 1986b: 212–213 (only specimens from Luzon), figs 26–31, 59a (♂ ♀). Huber 2011: 45–48 (only specimens from Luzon), figs 41–42, 62–63, 139–144 (not figs 141, 147–152; see C. bugis View in CoL ).

Note on previous misidentifications. Most previous records of Calapnita vermiformis View in CoL (all those from outside Luzon in Deeleman-Reinhold 1986a, 1986b and in Huber 2011) are now considered different species. The SEM photos in Huber 2000 (figs 34, 69, 124, 177) were made from specimens from Sumatra that belong to C. saluang Huber, 2011 View in CoL . The SEM photos in Huber 2011 (figs 147–152) were made from specimens from Sulawesi that belong to C. bugis View in CoL sp. nov.

Diagnosis. Distinguished from other species of the vermiformis group by details of procursus: ventral flap membranous and tip curved towards dorsal ( Figs 196–197 View FIGURES 188 – 203 ); distinctive prolateral sclerite (arrow in Fig. 196 View FIGURES 188 – 203 ). From C. bario and C. bariengi also by distal cheliceral apophyses clearly bipartite ( Fig. 200 View FIGURES 188 – 203 ); from C. saluang and C.

bugis also by wide proximal part of bipartite cheliceral apophyses ( Fig. 200 View FIGURES 188 – 203 ); from several species also by continuous wide connection between epigynal plate and ‘knob’ ( Fig. 203 View FIGURES 188 – 203 ), and by pale male sternum.

New material examined. PHILIPPINES: 2♂ 2♀, ZFMK (Ar 16041), Luzon , Camarines Sur Prov., Mount Isarog , W slope (13.664°N, 123.34– 123.35°E), ~ 600–900 m a.s.l., forest, on leaves, 23.ii.2014 (B.A. Huber). GoogleMaps

Assigned tentatively. PHILIPPINES: 1♂ 1♀, ZFMK (Ar 16042), Luzon , Laguna Prov., Mount Banahaw , forest near Taytay Falls (14.110°N, 121.507°E), 560 m a.s.l., on leaves, 26.ii.2014 (B.A. Huber) GoogleMaps ; 1♀ in absolute ethanol, ZFMK (Phi 219), same data GoogleMaps . 3♂ 13♀ 7 juvs, ZFMK (Ar 16043–44) and 1♂ 1♀, MSU-IIT, Negros Island, Negros Oriental Prov., Twin Lakes National Park (9.368– 9.365°N, 123.181– 123.182°E), 850–950 m a.s.l., forest above Baliansasayao Crater Lake , on leaves, 9.iii.2014 (B.A. Huber); 8 juvs in absolute ethanol, ZFMK (Phi 191), same data GoogleMaps .

Variation. Males from Mount Isarog (~ 30 km from type locality) appear indistinguishable from the male holotype and from males from Atimonan (examined in Huber 2011). Tibia 1 in 2 males: 7.3, 7.6; in 2 females: 6.3, 6.7. Male palpal femur ( Fig. 199 View FIGURES 188 – 203 ) distal process at 41% of femur length. Male palpal tibia length/width in 1 male: 0.75/0.38; tibia 2/tibia 4 length in 2 males: 0.92; bulb length: 0.44; embolus length: 0.89.

The specimens from Mount Banahaw are slightly different ( Figs 204-211 View FIGURES 204 – 219 ): the procursus is slightly longer while the distal widened part is slightly smaller ( Figs 204–205 View FIGURES 204 – 219 ); the male cheliceral apophyses, the palpal trochanter and femur, and the epigynum are all very slightly different in shape ( Figs 206–211 View FIGURES 204 – 219 ). These specimens are therefore assigned tentatively. Tibia 1 in 1 male: 8.1; in 1 female: 6.8. Male palpal tibia length/width: 0.80/0.39; bulb length: 0.59; embolus length: 1.00.

Specimens from Negros differ more strongly ( Figs 212–219 View FIGURES 204 – 219 ; especially smaller palps and shorter epigynum) but the tip of the procursus is strikingly similar; these specimens are provisionally assigned to this species, pending further collecting in the large gap between Luzon and Negros. Tibia 1 in 7 males: 6.5–7.6 (mean 7.1); in 13 females: 5.8–6.3 (mean 6.0). Male palpal tibia length/width in one male from Negros: 0.60/0.34; bulb length: 0.41; embolus length: 0.61.

Distribution. Possibly widespread in the Philippines ( Fig. 284 View FIGURE 284 ), but note that specimens from two localities are assigned tentatively.

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Calapnita

Loc

Calapnita vermiformis Simon, 1892

Bernhard A. Huber 2017
2017
Loc

Micromerys

Simon 1893: 474
1893
Loc

Calapnita vermiformis

Simon 1892: 42
1892
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