Malagiella ranomafana, Ubick & Griswold, 2011

Ubick, Darrell & Griswold, Charles E., 2011, The Malagasy Goblin Spiders Of The New Genus Malagiella (Araneae, Oonopidae), Bulletin of the American Museum of Natural History 2011 (356), pp. 1-86 : 59-78

Malagiella ranomafana , new species

Figures 7–116 , 200–235 , 463, 466, 467 , 475, 478 , 481 , 487 ; maps 1–4; table 1

TYPE: Male holotype, female allotype, and female paratype from Talatakely, P.N. Ra- nomafana, 21 ° 159S, 47 ° 259E, 900 m, Fianarantsoa Province, Madagascar (5–7 Dec 1993, N. Scharff, S. Larcher, C. Griswold, R. Andriamasimanana), deposited in CAS (CASENT 9029645, PBI _OON 03225).

ETYMOLOGY: The species is named after the type locality.

DIAGNOSIS: The male may be distinguished from other species in the group by the combination of sternum strongly bristly, bulb-cymbium small (about 0.5 patella-tibia length), and a palpal patella of moderate size (fig. 481). The female differs by the combination of large dorsal scutum, PES with straight posterior margin, and receptaculum moderately sinuous (W/L 5 0.3–0.5) (figs. 228–235).

MALE (PBI_OON 03225): Total length 1.70 (1.56–1.70), carapace length 0.80 (0.78– 0.80), width 0.64 (0.62–0.66), N 5 12. CEPHALOTHORAX: Carapace ovoid in dorsal view, pars cephalica slightly elevated in lateral view, anteriorly narrowed to about 0.55 times its maximum width; lateral margin strongly undulate (fig. 14). Eye area width 0.5 carapace width, length 1.2 clypeus length (figs. 13–15). Sternum lateral margin infracoxal grooves present, with anterior and posterior openings (fig. 19). Mouthparts: Cheliceral paturon posterior surface with a row of three long setae (fig. 19); with promarginal tooth and denticles on both margins (fig. 25). Endite with median lobe bearing dense scopula and lateral lobe with serrula and three stout setae (figs. 26, 27). ABDOMEN: Pedicel tube of medium length (fig. 208), dorsal extension of epigastric scute about one pedicel diameter (fig. 207). Spinnerets: ALS with three subequal spigots; PMS with two subequal spigots; PLS with four subequal spigots (figs. 40–43). LEGS: Tarsi I–IV superior claws examined in detail: tarsal proclaws and retroclaws with faces striate; tarsi I, II superior claws with three large teeth on lateral surfaces and three small teeth on median surfaces of both proclaw and retroclaw; tarsi III, IV superior claws with three teeth on lateral surfaces of proclaw and retroclaw, lacking teeth on median surfaces; tarsi I–IV lacking inferior claw (figs. 74–78); tarsal claws III, IV each with three modified clawlike setae (figs. 77, 78). Trichobothria examined with SEM: trichobothrial base longitudinally narrowed, aperture internal texture not gratelike; hood covered by numerous low closely spaced ridges, usually in transverse orientation but radially arranged in proximal half of some bothria; both types of ridges occur on tibial trichobothria (figs. 62–64). Tarsal organ with 2 sensilla on palp and tarsi III, IV; 3 sensilla on tarsi I, II (figs. 57–61). GENITALIA: Epigastric region with sperm pore small, rebordered (figs. 34–36). Palp (figs. 85–97, 220–227, 481, map 3) bulb pale orange, more than 2 times as long as cymbium; embolar complex (figs. 93–97) distal, compressed, retrolaterally concave, with hyaline ventral prong (BVP) and dorsal embolus, apex transversely expanded with median opening and lateral prongs, prolateral prong (EPP) with groove connecting embolar opening (fig. 98).

FEMALE (PBI_OON 01999): Total length 1.71 (1.71–1.96), carapace length 0.82 (0.80– 0.84), width 0.66 (0.64–0.68), N 5 11. CEPHALOTHORAX: Clypeus shorter than eye region length (fig. 18), anteriorly narrowed to about 0.49 times its maximum width. Eyes (figs. 16–18, 215) as in male. Sternum microsculpture covering entire surface (figs. 21–23). Chelicerae (figs. 28, 29) and labium (fig. 29) as in male. Endites lacking anteromedian projection and anterolateral knob, three setae near serrula not stout (figs. 29, 30). ABDOMEN: Pedicel tube of medium length (fig. 218) and epigastric scutum dorsal extension (fig. 217), both slightly shorter than in male. Dorsal scutum covering more than 0.7 of abdomen (figs. 211, 212), not fused to epigastric scutum (figs. 37, 38, 217, 218). Postepigastric scutum short, extending only to posterior spiracles, with small lateral sclerites, internally with short posteriorly directed lateral apodemes (figs. 108, 116, 213). Spinnerets: ALS with three spigots, median slightly larger; PMS with three subequal spigots; PLS with six subequal spigots (figs. 44–47). LEGS (figs. 466, 467): With fine transverse ridges delineating regions of muscle attachment (figs. 54, 55) and slit sensilla (figs. 51–53). Tarsal claws as in male except: tarsus IV superior claws with three teeth on lateral surfaces and one large apical tooth on median surfaces of both proclaw and retroclaw (figs. 79–84). Trichobothria (figs. 70–73) as in male. Tarsal organ (figs. 65–69) as in male. GENITALIA: Ventral view (figs. 100–107, 228–234, map 4): epigynal area with median depression enclosing small round hole (copulatory opening) (figs. 101, 103, 105), with a pair of slitlike openings at base of apodemes (fig. 104), with sigmoid tube (receptaculum) and a pair of paramedian apodemes visible through cuticle (figs. 228, 234). Dorsal view (figs. 108–116, 235): receptaculum sigmoid, reaching posteriorly slightly beyond postepigastric scutum; with pair of lateral apodemes. The receptaculum varies considerably in size, degree of sinuation, and direction of curvature (figs. 228–235).

OTHER MATERIAL EXAMINED: MADA- GASCAR: Fianarantsoa Province: Ranomafana N.P., 21 ° 129S, 47 ° 279E, forest, 1–30 Apr 1992 (V. Roth, B. Roth, S. Kariko, CASENT 9029651, PBI _OON 03231), 1♀ ; Ranomafana N.P., Maharira , 09 Apr 1992 (Emile, Kariko-Roth Coll., MCZ 53653, MCZ 53656, PBI _ OON 00028216 , PBI _ OON 00028217 ), 2♀ ; Trail F, 325 m, 18 May 1992 (Emile, Kariko-Roth Coll., MCZ 53652, PBI _ OON 00028212 ), 1♀ ; Trail L, 1050 m, 15 Apr 1992 (Emile, Kariko-Roth Coll., MCZ 53626, PBI _ OON 00028214 ), 2♀ ; Trail M, 15 May 1992 (Albert, Kariko- Roth Coll., MCZ 53657, PBI _ OON 00028215 ), 1♀ ; across footbridge at campsite, 26 Mar 1992 (S. Kariko, V. Roth, MCZ 53646, PBI _ OON 00028213 ) 6♀ ; Talatakely, P.N. Ranomafana , 21 ° 14.99S, 47 ° 25.69E, sifting leaf litter, 5–18 Apr 1998 (C. Griswold, D. Ubick, CASENT 9029647, PBI _OON 03227), 18, 2♀ ; 19–30 Apr 1998 (C. Griswold, D. Ubick, CASENT 9029649, PBI _OON 03229), 1♀ ; pitfall trap, 13–27 Apr 1998 (Griswold et al., CASENT 9029650, PBI _OON 03230), 18 ; 21 ° 15.39S, 47 ° 25.99E, pitfall trap, 9–26 Apr 1998 (Griswold et al., CASENT 9029644, PBI _OON 03224), 28, 3♀ ; 21 ° 159S, 47 ° 269E, 915– 1000 m, 30 Oct–20 Nov 1998 (V. Lee, K. Ribardo, CASENT 9029648, PBI _OON 03228), 18 ; 21 ° 15.89S, 47 ° 25.29E, 940– 985 m, pitfall trap, 1–21 Nov 1998 (V. Lee, K. Ribardo, CASENT 9029646, PBI _OON 03226), 18 ; 21 ° 15.59S, 47 ° 25.4 E, 1050 m, montane rainforest, 24 Dec 2005 – 14 Jan 2006 (H. Wood, J. Miller, et al., HW009, CASENT 9019096, PBI _OON 03433), 28, 2♀ ; Vatoharanana 1100, 221.29, 47.43333, 1100 m, montane rainforest, pitfall trap, 27– 31 Mar 2003 (Fisher, Griswold et al., BLF8402, CASENT 9011546, PBI _OON 03232), 28, 1♀ ; sifted litter, leaf mold, rotten wood, 27–31 Mar 2003 (Fisher, Griswold et al., BLF8400, CASENT 9011421, PBI _ OON 02216), 1♀ ; Vatoharanana 1200, 21 ° 16.79S, 47 ° 26.19E, 1200 m, primary rainforest understory, 15–29 Apr 1998 (Griswold et al., CASENT 9025683, PBI _OON 01999), 48, 3♀ ; sifting leaf litter, 15 Apr 1998 (C. Griswold, D. Ubick, CASENT 9029652, PBI _OON 03233), 1♀ ; 7 km SW Ranomafana , 21.126N, 47.276E, 1000 m, 20–24 Mar 1990 (W. Steiner, USNM, PBI _ OON 00027793 ), 1♀ .

DISTRIBUTION: Known only from Ranomafana National Park, Madagascar.

Figures

Figs. 7–12. Malagiella ranomafana, new species. 7, 8. Male (PBI_OON 01999). 9–12. Female (PBI_OON 03227: 9, 10; PBI_OON 03224: 11, 12). 7. Cephalothorax, ventral view, arrow to anteriolateral knob, dash to sternal bristles, P 5 patella. 8. Palpal bulb and tarsus, retrolateral view, arrow showing contact zone of bulb and tarsus. 9. Claws of fourth tarsus, anterior view, arrow showing large medial prong. 10. Same, retrolateral view, arrow to medial prongs. 11. Epigynal margin, posterior view, arrow to copulatory orifice. 12. Same, anteriolateral view, arrow to posterior margin of gonopore showing absence of median pores, dash to copulatory orifice.

Figs. 13–18. Malagiella ranomafana, new species, carapace. 13. Male (PBI_OON 01999), anterior view. 14. Same, lateral view. 15. Same, dorsal view. 16. Female (PBI_OON 01999), dorsal view. 17. Same, anterior view. 18. Same, lateral view. Transverse dotted line shows anterior carapace width measurement.

Figs. 19–23. Malagiella ranomafana, new species, sternum. 19. Male (PBI_OON 01999), cephalothorax, ventral view, arrow to anterolateral knob of sternum, dash to sternal bristles. 20. Same, sternum, posterior view showing glabrous median channel (arrow). 21. Female (PBI_OON 01999), sternum, ventral view. 22. Same, sternal groove (arrow) at right coxae II and III. 23. Same, coxal groove showing pores: dash to anterior, arrow to posterior pore. Scale bars are 100 µm in figures 19 and 21.

Figs. 24–30. Malagiella ranomafana, new species, chelicerae and mouthparts. 24. Male (PBI_OON 01999), chelicerae, dorsal view. 25. Same, magnified view showing promarginal tooth (arrow). 26. Same, endites, apical view, arrow to distolateral swelling. 27. Same, dorsal view showing serrula (arrow). 28. Female (PBI_OON 01999), chelicerae, anterior view. 29. Same, chelicerae and mouthparts, apical view, arrow to unmodified distolateral margin. 30. Same, endite, anteriodistal view showing serrula (arrow). Scale bars are 10 Mm (fig. 25) and 50 Mm (others).

Figs. 31–39. Malagiella ranomafana, new species, abdomen. 31. Male (PBI_OON 01999), abdomen, anteriolateral view. 32. Same, magnified view showing junction of dorsal and ventral scutes (arrows). 33. Same, magnified view of dorsal scute cuticle. 34. Same, epigastric region, ventrolateral view showing respiratory spiracles (arrows) and apodeme orifice (dash). 35. Same, sperm pore, ventral view. 36. Same, lateral view. 37. Female (PBI_OON 01999), abdomen, lateral view. 38. Same, anterior view. 39. Same, magnified view of ventral view of dorsal scutum.

Figs. 40–47. Malagiella ranomafana, new species, spinnerets. 40. Male (PBI_OON 01999), spinnerets, apical view. 41. Same, ALS. 42. Same, PMS. 43. Same, PLS. 44. Female (PBI_OON 01999), spinnerets, apical view. 45. Same, ALS. 46. Same, PMS. 47. Same, PLS.

Figs. 48–56. Malagiella ranomafana, new species, female (PBI_OON 03227, except fig. 56 5 PBI_OON 01999). 48. Palp, retrolateral view. 49. Same, anterior view. 50. Palpal tibia, dorsal view, showing trichobothria (arrows). 51. Tibia IV, dorsal view. 52. Same, enlargement of slit sensillum. 53. Same, further enlargement, arrow shows pore. 54. Tibia I, dorsal view. 55. Same, enlargement showing cuticular ornamentation presumably associated with internal muscle attachment (arrows). 56. Femur I, prolateral view showing spine (arrow).

Figs. 57–73. Malagiella ranomafana, new species, sensory structures, dorsal view. 57. Male (PBI_OON 01999), tarsal organ, palp. 58. Same, tarsus I. 59. Same, tarsus II. 60. Same, tarsus III. 61. Same, tarsus IV. 62. Trichobothrium, palpal tibia. 63. Same, tibia III. 64. Same, metatarsus IV. 65. Female (PBI_OON 01999, PBI_OON 03227), tarsal organ, palp. 66. Same, tarsus I. 67. Same, tarsus II. 68. Same, tarsus III. 69. Same, tarsus IV. 70. Trichobothrium, palpal tibia. 71. Same, tibia II. 72. Same, tibia IV. 73. Same, metatarsus I. Scale bars refer to entire row of figures.

Figs. 74–84. Malagiella ranomafana, new species, tarsal claws. 74. Male (PBI_OON 01999), claw I, apicolateral view. 75. Same, claw II. 76. Same, apical view. 77. Same, claw III, retrolateral view. 78. Same, claw IV, dorsal view. 79. Female (PBI_OON 03227), claw I, prolateral view. 80. Same, apical view. 81. Same, claw II, apicolateral view. 82. Same, claw III, prolateral view. 83. Same, claw IV, prolateral view. 84. Same, dorsal view. Arrows show clawlike setae and dashes show the enlarged inner tooth in the female. Scale bars are 10 um.

Figs. 85–92. Malagiella ranomafana, new species, male palp (PBI_OON 01999), trochanter to bulb. 85. Prolateral view. 86. Same, magnified view with arrow showing cymbium-tarsus boundary. 87. Retrolateral view. 88. Same, bulb and tarsus. 89. Bulb, apical view. 90. Same, dorsal view. 91. Same, tarsus-bulb boundary. 92. Same, magnified view. B 5 bulb, F 5 femur, P 5 patella, Ta 5 tarsus, Ti 5 tibia.

Figs. 93–99. Malagiella ranomafana, new species, male palp (PBI_OON 01999). 93. Embolar region, apical view. 94. Same, retrolateral view, with arrow to ventral prong (BVP). 95. Same, dorsal view. 96. Same, dorsoprolateral view. 97. Same, prolateral view. 98. Same, apical view, arrow to groove connecting embolar opening to prolateral process, dash indicates tip of ventral prong. 99. Same, dorsoapical view, showing groove and prolateral process (arrow). BVP 5 bulb ventral prong, E 5 embolus, EG 5 embolus groove, EO 5 embolus opening, EPP 5 embolus prolateral process, ERP 5 embolus retrolateral process.

Figs. 100–107. Malagiella ranomafana, new species, female epigyna. 100. Female (PBI_OON 01999), with gonopore closed, ventral view. 101. Same, magnified view. 102. Female (PBI_OON 03224), with gonopore slightly opened. 103. Same, sublateral view, arrow to copulatory opening. 104. Same, posterior view, with arrows to apodeme orifice. 105. Same, magnified view, showing copulatory opening (arrow). 106. Female (PBI_OON 03227), with gonopore moderately opened. 107. Same, sublateral view. Lettering refers to the anterior (A) and posterior (P) margins of the gonopore. Scale bars are 50 Mm (figs. 100, 102, 104, 106, 107) and 20 Mm (figs. 101, 103, 105).

Figs. 108–116. Malagiella ranomafana, new species, female epigyna, internal views (PBI_OON 03224, except fig. 116 5 PBI_OON 03227). 108. Abdominal region with tracheae, ventral view. 109. Same, showing receptaculum (arrow) and apodeme (dash). 110. Same, with tracheae removed, arrows to apodeme bases. 111. Same, showing receptacular membrane enclosing sinuous duct (dashed line). 112. Same, posterior view, receptaculum in center box, apodeme base in right box. 113. Same, showing receptaculum (dashed line). 114. Same, broken apodeme showing central pore (arrow). 115. Epigynal region, posterolateral view, showing attachment of receptaculum (arrow). 116. Same, more thoroughly digested specimen, anterior view, arrow showing torn membrane of uterus internus. BL 5 book lung, BLC 5 book lung cover, G 5 gonopore, PA 5 posterior apodeme, R 5 receptaculum, Tr 5 trachea.

Figs. 200–209. Malagiella ranomafana, new species, male (PBI_OON 01999). 200. Habitus, ventral view. 201. Same, dorsal view. 202. Same, lateral view. Scale bar 5 1 mm. 203. Abdomen, ventral view. 204. Cephalothorax, ventral view. 205. Same, anterior view. 206. Same, posterior view. 207. Abdomen, anterior view. 208. Same, lateral view. 209. Same, posterior view.

Figs. 210–219. Malagiella ranomafana, new species, female (PBI_OON 03227). 210. Habitus, ventral view. 211. Same, dorsal view. 212. Same, lateral view. Scale bar 5 1 mm. 213. Abdomen, ventral view, with arrow showing lateral sclerite. 214. Cephalothorax, ventral view. 215. Same, anterior view. 216. Same, posterior view. 217. Abdomen, anterior view. 218. Same, lateral view. 219. Same, posterior view.

Figs. 220–227. Malagiella ranomafana, new species, male (220–225: PBI_OON 01999; 226, 227: PBI_OON 03224). 220. Palp, femur to bulb, prolateral view. 221. Same, retrolateral view. 222. Same, dorsal view. 223. Same, ventral view. 224. Same, anterior view. 225. Same, posterior view. 226. Bulb, retrolateral view. 227. Palp, retrolateral view.

Figs. 228–235. Malagiella ranomafana, new species, female epigynal variation. 228. Epigynal area, ventral view, PBI_OON 03433. 229. Same, but different specimen, PBI_OON 03433. 230. Same, PBI_OON 03229. 231. Same, PBI_OON 03227. 232. Same, PBI_OON 01999. 233. Same, PBI_OON 03225. 234. Same, PBI_OON 01999, cleared. 235. Same, PBI_OON 01999, dorsal view.

Figs. 463–471. Malagiella species, female palpi and legs. M. ranomafana (PBI_OON 03227): 463, 466, 467; M. vohiparara (PBI_OON 03078): 464, 468, 469; M. toliara (PBI_OON 03221): 465, 470, 471. 463– 465. Palp, retrolateral view. 466, 468, 470. Leg I, retrolateral view. 467, 469, 471. Leg IV, retrolateral view showing leg spines (arrows). Scale bars 5 200 Mm.

Figs. 472–480. Malagiella species, sternum, ventrolateral view, males (472–477) and females (478–480). 472. M. andringitra, PBI_OON 03234. 473. M. valterova, PBI_OON 03461. 474. M. fisheri, PBI_OON 03452. 475. M. ranomafana, PBI_OON 01999. 476. M. vohiparara, PBI_OON 03078. 477. M. toliara, PBI_OON 03377. 478. M. ranomafana, PBI_OON 01999. 479. M. vohiparara, PBI_OON 03078. 480. M. toliara, PBI_OON 03221.

Figs. 481–486. Malagiella species, male palpus, femur to bulb, prolateral view. 481. M. ranomafana, PBI_OON 03224. 482. M. andringitra, PBI_OON 03234. 483. M. valterova, PBI_OON 03461. 484. M. vohiparara, PBI_OON 03078. 485. M. fisheri, PBI_OON 03452. 486. M. toliara, PBI_OON 03377. Scale bar (200 Mm) applies to all palpi.

Fig. 487. Size variation in Malagiella measured as a function of carapace length to carapace width. Plot is based on measurements of 26 male specimens (‘‘x’’) and 30 female specimens (‘‘o’’). Blue lines enclose male values for a given species and red lines female values; disjunct conspecific readings are connected by straight lines. Green dotted lines enclose the three species groups. Brown dashed lines refer to the size of female DS, with the large dashes (upper right) enclosing species with the largest scutes and small dashes (lower left) those with the smallest. Abbreviations for species names: amba 5 M.ambalavo, andr 5 M. andringitra, fish 5 M. fisheri, good 5 M. goodmani, niki 5 M. nikina, rana 5 M. ranavalona, rano 5 M. ranomafana, toli 5 M. toliara, valt 5 M. valterova, vohi 5 M. vohiparara.