Vytfutia bedel Deeleman-Reinhold, 1986

Griswold, Charles E., 2022, The Lace Web Spider Genus Vytfutia Deeleman-Reinhold (Araneae, Phyxelididae) in the Indo-Pacific Region, Proceedings of the California Academy of Sciences 67 (14), pp. 329-355 : 336

Vytfutia bedel Deeleman-Reinhold, 1986

Figures 15–19 , 56, 57 , 62

Vytfutia bedel Deeleman-Reinhold, 1986: 35 (male holotype and female paratype from Sumatra, RMNH, examined). Griswold 1990: 186. Griswold et al., 2005: 90.

Diagnosis: Males with palpal tibia with DTA elongate, greater than 0.50 length tibia ( Figs. 16, 17 ), tibia lacking subapical enlarged seta, embolus long, arising on retrolateral side of bulb (4 o’clock) and making turn of more than 225º, median apophysis short, length less than 4.00 times width ( Figs. 15, 17 ); females with epigynum with copulatory opening rims longitudinal, epigynum posterior margin convex, prolonged posteriorly in center ( Fig. 18 ), vulva with spherical lobe laterad of copulatory openings ( Fig. 19 ); thoracic fovea linear.

Male (after Deeleman-Reinhold, 1986: 35): Total length 3.60. Carapace yellow-brown, ocular area and chelicerae dark brown; legs pale yellow-brown; dorsum of abdomen pale yellow with paired, dorsal dark cardiac marks, broken into anterior and median groups, transverse chevrons posteriorly. Carapace 1.70 long, 1.20 wide, carapace length 1.33 times width, carapace height 0.39 times width; PER 1.18 times AER, PER 2.36 times OAL, OAL equals OQL, OQA 0.65 times OQP; clypeal height 1.67 times AM diameter; ratio of eyes AM:AL: PM: PL,1.0:2.33:2.0:2.0, AM-AM, AM-AL equal AM diameter, PM-PM, PM-PL 0.80 times PM, AL touching PL; chelicerae 0.70 long, cheliceral length 7.0 times clypeal height; sternum length 1.22 times width; labium length equals width; palpal coxae length 1.78 times width. Legs with typical spination. Leg measurements: I: 1.70 + 0.60 + 1.50 + 1.50 + 0.70 = [6.00]; II: 1.40 + 0.60 + 1.10 + 1.20 + 0.60 = [4.90]; III: 1.20 + 0.50 + 0.90 + 1.00 + 0.40 = [4.00]; IV: 1.40 + 0.50 + 1.10 + 1.40 + 0.50 = [4.90]; palp: 0.70 + 0.50 + 0.50 + NA + 0.60 = [2.30]; femur I 1.42 times carapace width; leg formula: 1 4=2 3. Metatarsus I as in Figs. 56, 57 , clasping spine barely reaches median spur, spur short, length less than ¼ segment width. Male palp as in Figs. 15–17 ; male palpal tibia length 0.52 times cymbial length, RTA length 0.86 times tibia, MA origin 0.27 of distance to tegular base, MA length 0.63 that of tegulum, MA length 2.71 times width. Female (after Deeleman-Reinhold, 1986: 34): Total length 4.0. Markings as in male except carapace with dark marks at margin of pars cephalica that meet at anterior of straight thoracic fovea, and with four small transverse dark marks on each side of thoracic fovea. Carapace 1.70 long, 1.30 wide, carapace length 1.31 times width, carapace height 0.53 times width; PER 1.2 times AER, PER 2.25 times OAL; OAL equals OQL, OQA 0.67 times OQP; clypeal height 1.33 times AM diameter; ratio of eyes AM:AL: PM: PL, 1.0:2.67:2.0:2.0, AM-AM, AM-AL equal to AM; PM-PM 0.67 PM, PM-PL 0.85 PM; AL-PL touching; Chelicerae 0.70 long, cheliceral length 9.25 times clypeal height; sternum length 1.17 times width; labium length 0.93 times width; palpal coxae length 1.62 width. Legs with typical spination. Leg measurements: I: 1.60 + 0.60 + 1.40 + 1.20 + 0.70 = [5.50]; II: 1.30 + 0.60 + 1.00 + 1.00 + 0.60 = [4.50]; III: 1.10 + 0.40 + 0.70 + 0.90 + 0.40 = [3.50]; IV: 1.40 + 0.60 + 1.00 + 1.10 + 0.50 = [4.60]; palp: 0.70 + 0.30 + 0.40 + NA + 0.60 = [2.00]; leg formula = 1423; femur I 1.23 times carapace width. Epigynum as in Fig. 18 , epigynum width 0.75 times length; epigynum MLW equal to MLL; epigynum MLW 10 times LLW. Vulva as in Fig. 19 .

Natural History: Deeleman-Reinhold (1986) stated that this species occurs in primary tropical rainforest and noted that it is rare and apparently lives in isolated clusters. Among the collecting data that she quotes are “from leaves” and ““in small irregular web in forked branch” ( Deeleman-Reinhold (1986: 34).”

Distribution: Known only from the type locality in northern Sumatra ( Fig. 62 ).

Material Examined: INDONESIA: N. Sumatra: Gunung Leuser, border of National Park at Bohorok in primary rainforest, Nov. 15, 1983, elev. 200 m, from leaves (Deeleman, RMNH), 1♂, 1♀ (male holotype and female paratype, Vytfutia bedel Deeleman-Reinhold ) .

Figures

FIGURES 15–19. Vytfutia bedel Deeleman-Reinhold, 1986, genitalia-drawings, Holotype male and paratype female collected from Gunung Leuser, border of National Park at Bohorok in primary rainforest, N. Sumatra, Indonesia. 15–17. Male left palp. 15. Tibia and tarsus, ventral. 16. Tibia, dorsal. 17. Tibia and tarsus, retrolateral. 18, 19. Female genitalia. 18. Epigynum, ventral. 19. Vulva, dorsal. C = conductor; D = Dorsal tibial apophysis; E = embolus; MA = median apophysis; RL = retrolateral tibial apophysis.

FIGURES 56–61. Vytfutia spp., male leg I with clasping modification of metatarsus. 56, 58, 61. Dorsal. 57, 59, 60. Retrolateral. 56, 57. Vytfutia bedel Deeleman-Reinhold, 1986, Holotype male from Gunung Leuser, border of National Park at Bohorok in primary rainforest, N. Sumatra, Indonesia, left. 58, 59. Vytfutia labalaba new species, Holotype male from the wall of a building at 1550m elevation on Mt. Kinabalu, Sabah-Borneo, Malaysia, CASENT9023842, right. 60, 61. Vytfutia pallens Deeleman-Reinhold, 1989, male paratype from Niah Cave, Sarawak, Malaysia, right. Scale bar = 1mm.

FIGURE 62. Vytfutia spp. Distributions on map of Eurasia and Australasia. Filled circle. Vytfutia bedel Deeleman-Reinhold, 1986, Holotype male from Gunung Leuser, border of National Park at Bohorok in primary rainforest, N. Sumatra, Indonesia. Triangle. Vytfutia labalaba new species, Holotype male from the wall of a building at 1550m elevation on Mt. Kinabalu, Sabah-Borneo, Malaysia. Diamond. Vytfutia halandrefana new species, Madagascar. Star. Vytfutia pallens Deeleman-Reinhold, 1989, male paratype from Niah Cave, Sarawak, Malaysia.