Mollemeta edwardsi Álvarez-Padilla, 2007

Álvarez-Padilla, Fernando, 2007, Systematics of the spider genus Metabus O. P. - Cambridge, 1899 (Araneoidea: Tetragnathidae) with additions to the tetragnathid fauna of Chile and comments on the phylogeny of Tetragnathidae, Zoological Journal of the Linnean Society 151 (2), pp. 285-335 : 322

MOLLEMETA EDWARDSI ( SIMON, 1904) COMB. NOV.

Landana edwardsi Simon, 1904: 94 (female holotype in MNHN, examined).

Dolichognatha edwardsi ( Simon, 1904) : Levi, 1981: 277.

Diagnosis: See above under genus description.

Material examined (N = 75): CHILE: Chili ( MNHN) FAP0311 . Región IX de la Araucania, Cautín, P.N. Nietol nr. Temuco , site 652, pyrethrin fogging tree bark, 250 m, 14–30.xii.1982 , A. Newton & M. Thayer leg. 1 male ( AMNH) FAP0351 ; Malleco, Puren Contulmo Natur. Mon , 350 m, 11.xii.1984 − 13.ii.1985 , S. & J. Peck leg. 1 male ( AMNH) FAP0350 . Región X de los Lagos, Llanquihue, P. N. Alerce Andino, Sector Sargazo , 41°30′30″S, 72°37′0″W, 350 m, 20–27.xii.2000 , J. Miller, I. Agnarsson, F. Álvarez, J. A. Coddington & G. Hormiga leg. 2 females ( USNM) FAP0330 one female specimen used for SEM; 2 females ( USNM) FAP0331 ; 3 females ( USNM) FAP0332 female illustrated ; 2 females ( USNM) FAP0333 ; Petrohue , 23.i.1951 , Ross & Michelbacher leg. 1 female ( CAS) FAP0340 ; Osorno, Aguas Calientes, P. N. Puyehue , 480 m, 17–18.ii.1992 , N. I. Platnick, P. A. Goloboff, & M. I. Ramírez leg. 2 males, 1 female and 5 immatures ( AMNH) FAP0342 ; 600–700 m, 28.i.1986, N. I. Platnick , & R. T . Schuh leg. 1 female ( AMNH) FAP0344 ; 450 m, 27.i.1986, N. I. Platnick, P. A. Goloboff & R. T . Schuh leg. 9 females and 4 immatures ( AMNH) FAP0345 ; 5 females and 4 immatures ( AMNH) FAP0346 largest female measured; 40°44′0′S, 72°18′0′W, 480 m, 21.xi.1993, N. I. Platnick, K. Catley , M. I. Ramírez & T . Allen leg. 3 males and 3 females ( AMNH) FAP0347 largest male measured; 40°44′0″S, 72°18′45″W, 450 m, 12.xii.2000 − 2.i.2001 , J. Miller, F. Álvarez, J. A. Coddington & G. Hormiga leg. 2 females ( USNM) FAP0325 ; 1 female ( USNM) FAP0326 ; 40°44′0″S, 72°18′45″W, 450 m, 12.xii.2000 − 2.i.2001 , G. Hormiga leg. 1 male and 1 female ( USNM) FAP0327 one male specimen used for SEM; 1 male and 1 female ( USNM) FAP0328 male illustrated ; 1 male and 1 female ( USNM) FAP0329 ; 1 female ( USNM) FAP0379 ; 13-17.xii.1998 , M. J. Ramírez, M. Compagnucci, C. Grismado & L. Lopardo leg. 1 male (MACN- Ar) FAP0338; P. N. Puyehue, Anticura , 40°40′0″S, 72°10′30″W, 350 m, 13.xii.2000 − 2.i.2001, J. Miller, F. Álvarez, J. A. Coddington & G. Hormiga , 1 female ( USNM) FAP0334 ; 1 female ( USNM) FAP0337 ; 40°40′0″S, 72°10′30″W, 350 m, 13.xii.2000 − 2.i.2001 , G. Hormiga leg. 1 male ( USNM) FAP0335 ; 1 female ( USNM) FAP0336 ; 1 female ( USNM) FAP0380 ; Puyehue , 10 km E of, 24.i.1951 , Ross & Michelbacher leg. 1 male ( CAS) FAP0339 ; Osorno , xii.1978 , A. Tobar leg. 1 female ( AMNH) FAP0349 ; Palena, Chaiten , 10 m, 16.i.1986, N. I. Platnick, P. A. Goloboff, & R. T . Schuh leg. 1 female ( AMNH) FAP0343 ; 2 males and 4 females ( AMNH) FAP0348 smallest female and largest male measured; Valdivia , La Herradura, 6 km E Niebla , 20 m, 16.ii.1992 , N. I. Platnick, P. A. Goloboff, & M. I. Ramírez leg. 1 female ( AMNH) FAP0341 .

CHRYSOMETA SIMON, 1895 CHRYSOMETA ACINOSA SP. NOV.

( FIGS 10B , 11C , 21 )

Types: Female holotype from Osorno, Puyehue National Park, Chile ( FAP0373 ), two male and three female paratypes, all deposited at the USNM ( FAP0374 ) .

Etymology: Acinosus means like grapes and refers to the spermathecae shape of this species.

Diagnosis: Females of C. acinosa can be distinguished from other Chrysometa species by the grape-clustershaped spermathecae ( Fig. 21D ), and from C. butamal Levi, 1986 by the constricted median plate ( Fig. 21C ). Males are distinguished by a massive process on the tibial dorsal margin ( Fig. 21G, H ).

Figures

Figure 10. Photos of webs: A, Allende puyehuensis. B, Chrysometa acinosa. C, Mollemeta edwardsi. D, Metabus ebanoverde. Scale lines 10 cm. Photos A–C from Puyehue National Park, Chile. Photo D from Ebano Verde Scientific Reserve, Dominican Republic. (Photos A to C by G. Hormiga).

Figure 11. Distribution maps: A, Metabus species, Central and northern South America. B, Allende species, Chile. C, Chrysometa species, Chile. D, Mollemeta edwardsi, Chile.

Figure 21. Chrysometa acinosa. A, female habitus. B, epigynum ventral view. C, caudal view. D, ventral view cleared. E, dorsal view cleared. F–H, male pedipalp. F, ventral view. G, mesal view. H, ectal view. Scale bars 0.2 mm; except A 1 mm.