Titanattus cordia, Edwards & Baert & Fdacs, 1903

Edwards, G. B., Baert, L. & Fdacs, 1903, New Species, Combinations, and Records of Jumping Spiders in the Galápagos Islands (Araneae: Salticidae), Belgian Journal of Entomology 67, pp. 1-27 : 1-27

publication ID	https://doi.org/ 10.5281/zenodo.13271950
persistent identifier	https://treatment.plazi.org/id/F217A845-FFBE-FFF1-8D82-F9E2FBFBFC57
treatment provided by	Felipe
scientific name	Titanattus cordia
status

Treatment

Tribe Thiodinini

Titanattus cordia sp. nov.

urn:lsid:zoobank.org:act:FDBD3DFA-AF6C-4826-8F95-696F82689300

Figs 4-5 View Fig View Fig

ETYMOLOGY: A noun in apposition after the genus name of a dominant plant in the habitat where this species occurs.

TYPES: Holotype male from Islote Gardner , near Isla Española, elevation 30 m, in lichens in Bursera sp. forest, 13. II .1977, coll. W. G. Reeder ( TMM #57512 View Materials ) . Paratype female, paratype male, same data as holotype (W.G. Reeder, TMM #57508 View Materials ) . Paratype female, same data as

10 holotype except taken in litter of large Opuntia sp. , Bursera-Croton-Cordia community (W. G. Reeder, TMM #57599 View Materials ). Paratype male, Isla Isabela , east slope of Volcan Alcedo, elevation 380 m, 23. V .1980, (W.G. Reeder, TMM #57575 View Materials ). Paratype male, Isla San Cristobal, Punta Bassa , 23-24. III .2009 (L. Baert, B.09/027). Paratype female, Isla Santiago , 5 km SE Bahia Bucanero, 520 m, on rotted guayavillo trunk in guayavillo parkland with Sclerodendrum, Bursera, Pisonia , 21. IV .1975 (W.G. Reeder , TMM 59614 View Materials ) .

RECORDS: 2 females, Isla Santa Cruz , northern transect, Granillo rojo, 500 m alt., 1-30.IV.1992 (S. Peck, P92/83) .

DIAGNOSIS: Matching very well with other species of Titanattus in general appearance, size, and genital structure (particularly the short, broad VTA on the retrolateral half of the ventral distal edge of the tibia, the presence of patellar leg macrosetae, and a heart-shaped sternum lacking keels). Like T. acanjuba Bustamante & Ruiz, 2017 , it has extensive guanine deposits under the integument, and lacks PLEs on tubercles; see BUSTAMANTE & RUIZ, 2017), whereas most of the species in the genus have PLEs on tubercles. Differs also by having epigynal ducts and spermathecae centered in large shallow atrium rather than along anterior edge, and by having three promarginal teeth similar to some species of the related genus Thiodina Simon, 1900 .

DESCRIPTION: Male holotype (paratype in parentheses): BL 2.92 (2.83), CL 1.47 (1.36), CW 1.01 (1.02), AER 0.93, PER 0.96. Chelicerae with three promarginal teeth, one retromarginal

11 tooth. Inner margins of chelicerae concave about mid-length. Sternum heart-shaped, no keels. Carapace and sides of femora I dark brown, dorsal eye field lighter brown, the color extending as a narrow stripe down median thoracic slope. Abdomen cream colored with complex symmetrical dorsal pattern of interconnected brown spots, with narrow brown chevrons medially in posterior half. Spinnerets white except posterior laterals brown. Legs cream colored with brown marks distolaterally (and proximally on tibiae) on all segments except tarsi, palps cream colored with pale yellow cymbia. Leg macrosetae: I M v 2-2, Tb v 1p-2-2; II M v 2-2, Tb p 1-0-0, v 0-1r-0; III M p 2-0, v 1-0, r 1-0, Tb p 1-0-0, v 1p-0-0, P p 1; IV M p 2-0, v 1-0, r 1-0, Tb p 1-0-0, v 2-0-1p, r 0-1-0, P p 1.

Female alloparatype (other paratypes in parentheses): BL 3.36 (3.15-3.62), CL 1.40 (1.32- 1.55), CW 1.00 (0.91-1.03), AER 0.88, PER 0.94. Generally similar to male, carapace and legs not as dark, median thoracic stripe more conspicuous. Venter of abdomen dark cream colored, with three faint gray stripes, and two short brown stripes anterolaterally crossing booklung covers. Leg macrosetae like male.

NOTES: The female specimen from Isla Isabela has a less developed color pattern and other minor differences from the Islote Gardner specimens, particularly the presence of integumental guanine deposits, as does the male from Isla San Cristobal. However, we do not think this is indicative of a different species; in fact, one of the females from Islote Gardner where the most specimens were taken also has similar guanine deposits.