Malagiella toliara, 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 : 83-84

Malagiella toliara , new species Figures 185–199 , 429–462 , 465, 470, 471 , 477, 480 , 486 , 487 ; maps 1–4; table 1

TYPE: Male holotype and female allotype from sifted litter, leaf mold, rotten wood, in gallery forest, at Andranomite, 23.5242 ° S, 44.12133 ° E, 75 m, Toliara Province, Madagascar (27 Feb–3 Mar 2002, Fisher-Griswold Arthropod Team), deposited in CAS (BLF5850, CASENT 9010327, PBI _OON 03221).

ETYMOLOGY: The species name refers to its distribution.

DIAGNOSIS: This species can be distinguished from other Malagiella by its small size (males 5 1.1, with. 1.2 in other species; females 5 1.3, with $ 1.4 in other species) (figs. 431, 442), pale coloration, small eyes (figs. 435, 445), and the apparent absence of carapace sculpturing (figs. 430, 441). The female has a narrow DS (0.25 abdomen width (fig. 441), which is. 0.30 in other species) and widely sinuous epigynal ducts, with W 5 L (figs. 458–462). The male has a short VS, with distance from sperm pore to posterior edge being much shorter than to anterior edge (fig. 432) and a short palpal patella (patella-tibia L/cymbium-bulb L 5 1.3 (figs. 450–453), which is 1.5–2.2 in other species).

MALE (PBI_OON 03221): Total length 1.12 (1.10–1.12), carapace length 0.60, width 0.44 (0.44–0.46), N 5 2. CEPHALOTHO- RAX: Carapace pale orange, elongate oval in dorsal view (fig. 430), pars cephalica slightly elevated in lateral view, anteriorly narrowed to about 0.5 times its maximum width (fig. 430), surface of elevated portion of pars cephalica smooth, sides smooth (fig. 431); lateral margin straight; nonmarginal pars cephalica setae present in U-shaped row (setae rubbed off of available specimens, but bases visible). Clypeus twice the length of eye area. Eyes well developed, small; eye row width 0.26 carapace width, length 0.6 clypeus length (figs. 430, 435). Sternum with long bristles (figs. 434, 477). ABDOMEN: Shape cylindrical, somewhat compressed (figs. 432, 433, 437–439), strongly overhanging cephalothorax (fig. 431). Book lung covers large, ovoid (fig. 438). Pedicel tube short (fig. 438), scutum dorsal extension about 1.6 pedicel diameter. Dorsal scutum weakly sclerotized, pale orange, covering about 0.5 abdomen length and about 0.5 abdomen width (fig. 433). Postepigastric scutum short, covering (togeth- er with epigastric scutum) about 0.6 abdomen length, fused to epigastric scutum (figs. 432, 438). LEGS: Spination: femur I p0-1-0; tibiae: I, II v4-4-0, IV p1-1-0, r1-1-0, v0-0-2; metatarsi: I, II v2-2-0, III p0-1-0, r0-1-0, IV p1-0-0, r1-1-0. GENITALIA: Epigastric region with sperm pore large (fig. 432). Palpal patella 3.0 times femur length (figs. 450–457, 486, map 3), tarsus seamlessly fused to bulb (figs. 191, 192), bulb with dorsobasal indentation (figs. 185–188, 450, 451), bulb-cymbium about 0.7 tibia-patella length; embolus less sharply bent ventrally (figs. 185, 486), embolar opening small (fig. 192), closer to retrolateral prong (fig. 193).

FEMALE (PBI_OON 03221): Total length 1.34, carapace length 0.60, width 0.46. CEPHALOTHORAX: Carapace elongate oval in dorsal view, anteriorly narrowed to about 0.45 times its maximum width (fig. 441). Clypeus subequal to eye area length. Eyes small: eye row width 0.33 carapace width (fig. 445); length 1.1 clypeus length (figs. 441, 442). Female palp spines absent (figs. 465, 480). ABDOMEN: Pedicel tube short (fig. 448), scutum dorsal extension about 0.2 pedicel diameter (fig. 447). Dorsal scutum

covering about 0.7 abdomen length, about 0.25 abdomen width (fig. 441). Dense patch of setae anterior to spinnerets present (fig. 448). LEGS: Spination: femur I p0-1-0; tibiae: I, II v4-2-2, IV pv0-0-1; metatarsi: I, II v2-2-0, III p0-1-0, r0-1-0, IV p1-1-0, r0-1-0 (figs. 470, 471). GENITALIA: Postepigastric scutum weakly sclerotized (fig. 443). Receptaculum strongly sinuous, W 5 L (figs. 458–461).

OTHER MATERIAL EXAMINED: MADA- GASCAR: Toliara Province: Fiherenana MGF040, 23.1769 ° S, 43.96083 ° E, 100 m, gallery forest, sifted litter, leaf mold, rotten wood, 21–24 Oct 2002 (Frontier Project, MGF040, CASENT 9011402, PBI_OON 03377), 18.

DISTRIBUTION: Known only from two localities in southwestern Toliara Province, Madagascar.

Figures

Figs. 185–192. Malagiella toliara, new species, male palp, femur to bulb (PBI_OON 08377). 185. Palp, prolateral view. 186. Same, magnified view showing dorsal depression (arrow). 187. Palp, retrolateral view. 188. Same, magnified view. 189. Palp, dorsal view. 190. Same, ventral view. 191. Palpal bulb and tarsus, dorsal view. 192. Same, magnified view showing boundary of bulb and tarsus (arrow). B 5 bulb, F 5 femur, P 5 patella, Ta 5 tarsus, Ti 5 tibia.

Figs. 193–199. Malagiella toliara, new species, male palp (PBI_OON 08377). 193. Embolus, apical view, arrow to embolar opening, dash to edge of embolar groove. 194. Same, somewhat enlarged. 195. Same, prolateral view, with arrow to prolateral prong and dash to groove. 196. Same, retrolateral view. 197. Same, dorsal view. 198. Same, somewhat more prolateral view, arrow to projection bearing embolar groove. 199. Same, fully prolateral view. 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. 429–439. Malagiella toliara, new species, male (PBI_OON 03221: 429–431, 434, 435; PBI_OON 03377: 432, 433, 436–439). 429. Habitus, ventral view. 430. Same, dorsal view. 431. Same, lateral view. Scale bar 5 1 mm. 432. Abdomen, ventral view. 433. Same, dorsal view. 434. Cephalothorax, ventral view. 435. Same, anterior view. 436. Same, posterior view. 437. Abdomen, anterior view. 438. Same, lateral view. 439. Same, posterior view.

Figs. 440–449. Malagiella toliara, new species, female (PBI_OON 03221). 440. Habitus, ventral view. 441. Same, dorsal view. 442. Same, lateral view. Scale bar 5 1 mm. 443. Abdomen, ventral view. 444. Cephalothorax, ventral view. 445. Same, anterior view. 446. Same, posterior view. 447. Abdomen, anterior view. 448. Same, lateral view. 449. Same, posterior view.

Figs. 450–457. Malagiella toliara, new species, male (PBI_OON 03377). 450. Palp, femur to bulb, prolateral view. 451. Same, retrolateral view. 452. Same, dorsal view. 453. Same, ventral view. 454. Same, anterior view. 455. Same, posterior view. 456. Bulb, retrolateral view. 457. Palp, retrolateral view.

Figs. 458–462. Malagiella toliara, new species, female (PBI_OON 03221). 458. Abdomen, ventral view. 459. Epigynal area, ventral view. 460. Same, cleared specimen. 461. Same, different focal plane. 462. Same, lateral 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.