Coenypha antennata ( Tullgren, 1902 )

Machado, Miguel, Previato, Thales, Grismado, Cristian J. & Teixeira, Renato, 2023, Taxonomic review of the Andean crab spiders genus Coenypha Simon, 1895 (Thomisidae: Stephanopinae), Zootaxa 5306 (3), pp. 301-330 : 309

Coenypha antennata ( Tullgren, 1902)

Figs 4A–F , 5A–F , 14A

Stephanopis antennata Tullgren, 1902: 52 , pl. 5, fig. 4. Holotype female from Aysén, Chile (deposited in the NHRS, examined). Machado and Teixeira 2021: 296 (transferred to Coenypha ).

Other material examined. CHILE: Bío-Bío: 1j, Concepción ( Estero Nonguén ), 36°49’12.49”S, 73°2’39.80”W, 05 October 1996, T. Cekalovic ( MHNS) ; 1♀, Concepción ( Periquillo ), 36°49’12.49”S, 73°2’39.80”W, 16 March 1997, T. Cekalovic ( MHNS) . Los Ríos: 3j, Valdivia ( Huachocopihue ), 39°50’2.23”S, 73°14’17.32”W, 07 March 1965, H. Levi ( MCZ) . Los Lagos: 1♁ and 1♀, Osorno ( Termas de Puyehue ), 40°43’16.58”S, 72°19’3.85”W, 19–25 December 1982, A. Newton & M. Thayer ( MHNS) ; 2♀, Osorno ( Aguas Calientes ), 40°43’43.88”S, 72°18’43.17”W, 13–17 December 1998, M. Ramírez, L.Compagnucci, C. Grismado & L. Lopardo ( MACN-Ar, MACN-Ar 10423 ) ; 1♀, Llanquihue ( Puerto Montt ), 41°28’8.10”S, 72°56’28.09”W, February 1983, G. Arriagada ( MHNS 715 ) ; 1♀, same locality and collector of the previous vial, 24-29 January 1983 ( MHNS 725 ) ; 1♀, Llanquihue , 41°34’60.00”S, 72°40’60.00”W, 23 November 1993, N. Platnick & M. Ramírez ( MHNS) ; 1♀, same locality of the previous vial, April 1989, L. Peña ( MHNS) ; 1♀ and 1♁, Chamisa , 41°15’38.27”S, 73°0’28.23”W, 13 December 1981, L Peña ( MCZ) ; 1♁, Isla Grande de Chiloé ( Huequetrumao ), 42°27’22.52”S, 73°52’47.36”W, 27 December 1981, L. Peña ( MHNS) ; 1♀, Isla Grande de Chiloé ( Puente La Caldera ), 42°37’26.28”S, 73°55’35.66”W, 18 February 1997, T. Cekalovic ( MHNS) ; 1♁, Isla Grande de Chiloé ( Lago Huillinco ), 42°41’45.02”S, 73°55’52.42”W, 12-22 December 2002, M. Thayer & A. Newton ( MHNS 2857855 ) ; 1♀ and 1j, Isla Quinchao , 42°28’9.00”S, 73°30’53.00”W, 19 February 1997, T. Cekalovic ( MHNS) ; 1 ♀, La Junta [43°58’20.78”S, 72°24’12.63”W, Aysén ( MHNS).

Diagnosis. Females of C. antennata are similar to those of C. nodosa by the presence of a pair of stout and conical projections on the posterior portion of the opisthosoma ( Figs 4A , 12A ), caudal region well-developed and a strong spiniform macrosetae on the mesial prolateral surface of femora I. Nevertheless, they can be distinguished from this and other species of the genus by their narrow and longer cephalic portion and by the epigynum that looks like a “diving mask”, having a short and incomplete septum between the copulatory openings ( Figs 4C, 4E ). Males of C. antennata are distinguished from those of C. nodosa by their stronger legs ( Fig. 5A ), shorter embolus ( Fig. 5C ) and RTAvbr close to the tip of the RTA, curving towards the axis of the latter ( Figs 5E, 5F ). Both males and females present a diagnostic feature that apparently inspired the name of the species: a pair of strong macrosetae in the middle of the MOQ area that makes look that these spiders have antennas ( Fig. 4B ).

Description. Female (from Concepción, MHNS): Anterior eye row recurved and posterior row slightly recurved; ALE are twice the size of the AME ( Figs 4A, B ). Prosoma and anterior legs (I and II) predominantly orange-brown with few darker spots (or stripes, in the case of the carapace); legs III and IV brown, except for the tarsi and the proximal region of the femora, that are lighter ( Fig. 4A ). Opisthosoma yellowish with a median brown taint on the dorsum, splitting posteriorly along the abdominal projections ( Fig. 4A ). Copulatory ducts wide, short and sclerotized; spermathecae irregularly globose, with a median narrowing and apical PG ( Fig. 4D ). Measurements: eye diameters and interdistances: AME 0.08, ALE 0.17, PME 0.17, PLE 0.17, AME-AME 0.13, AME-ALE 0.11, PME-PME 0.15, PME-PLE 0.13. MOQ length 0.44, MOQ posterior width 0.49, MOQ anterior width 0.28; leg formula: 1243: leg I—femur 2.63/ patella 1.25/ tibia 1.99/ metatarsus 1.63/ tarsus 0.79/ total 8.29; II—2.12/ 1.13/ 1.63/ 1.44/ 0.66/ 6.98; III—1.38/ 0.76/ 1.08/ 0.83/ 0.59/ 4.64; IV—1.78/ 0.77/ 1.31/ 1.05/ 0.61/ 5.52. Prosoma length 2.76, width 2.39, opisthosoma length 3.55, total body length 6.31; clypeus height 0.29, sternum length 1.24, width 1.17, endites length 0.65, width 0.32, labium length 0.34, width 0.48.

Male (FMNH 2857855): Eyes as in the female. Prosoma dark-brown, anterior legs (I and II) brown and posterior ones (III and IV) brown with darker spots on tibiae and on the distal portion of femora ( Figs 5A, B ). Opisthosoma greyish-brown on the median portion of the dorsum, from its anterior margin until the spinnerets, and yellow on the sides ( Fig. 5A ). Palp with many tibial setae; embolus rests behind the tegulum and it is relatively short when compared to those of the males of other congeneric species ( Figs 5C, E ). Measurements: eye diameters and interdistances: AME 0.09, ALE 0.19, PME 0.17, PLE 0.17, AME-AME 0.14, AME-ALE 0.13, PME-PME 0.19, PME-PLE 0.12. MOQ length 0.48, MOQ posterior width 0.56, MOQ anterior width 0.34; leg formula: 1243: leg I—femur 2.72/ patella 1.25/ tibia 2.19/ metatarsus 1.87/ tarsus 1.05/ total 9.08; II—2.32/ 1.09/ 1.78/ 1.55/ 0.82/ 7.56; III—1.52/ 0.74/ 1.14/ 0.94/ 0.65/ 4.99; IV—1.97/ 0.88/ 1.34/ 1.04/ 0.75/ 5.98. Prosoma length 2.71, width 2.51, opisthosoma length 2.82, total body length 5.53; clypeus height 0.35, sternum length 1.16, width 1.14, endites length 0.67, width 0.34, labium length 0.35, width 0.50.

Distribution. CHILE: Bío-Bío, Los Rios, Los Lagos and Aysén ( Fig. 14 ).

Figures

FIGURE 4. Coenypha antennata (Tullgren, 1902), female (MHNS). A–B habitus (A dorsal, B frontal); C, E epigyne ventral; D, F vulva dorsal.

FIGURE 5. Coenypha antennata (Tullgren, 1902), male (FMNH 2857855). A–B habitus (A dorsal, B frontal); C–F left palp (C, E ventral, D, F retrolateral).

FIGURE 12. Coenypha nodosa (Nicolet, 1849), female (MCZ 133404).A–B habitus (A dorsal, B frontal); C, E epigyne ventral; D, F vulva dorsal.

FIGURE 14. Distribution records of Coenypha species. A C. antennata (triangles), C. edwardsi (circles); B C. ditissima (squares), C. nodosa (diamonds); C black triangles are C. trapezium sp. nov. (black triangles), C. foliacea sp. nov. (white triangles).