Orchestina dentifera Simon, 1893

Brescovit, Antonio D., Bonaldo, Alexandre B., Ott, Ricardo & Chavari, João L., 2019, To boldly go: on invasive goblin spiders in Brazil (Araneae, Oonopidae), Iheringia, Série Zoologia (e 2019033) 109, pp. 1-20 : 13-18

Orchestina dentifera Simon, 1893

( Figs 53-57 , 61 )

Orchestina dentifera SIMON, 1893c:248 (one male, four females, and one juvenile syntypes from Sri Lanka (ex Ceylan), Kandy!, deposited in MNHN 6025 [additional number 15250], PBI_OON 50024); SIMON, 1893d:294; DALMAS, 1916:232, figs 21, 27.

To boldly go: on invasive goblin spiders in Brazil ( Araneae , Oonopidae ) Bet al.

Orchestina justini SAARISTO, 2001:356 , figs 190-195 (male holotype from Seychelles Islands, Silhouette, Anse Cimitiére, deposited in MZUT 1250, PBI_OON 50030; 3 male and 3 female paratypes, same data, in MZUT 1251, PBI_OON 50029). IZQUIERDO & RAMÍREZ, 2017:26 (Syn.).

Diagnosis. Orchestina dentifera can be distinguished from O. pavesiiformis by the anterior face of male chelicerae with strong and conical projections on median line ( Fig. 55 ; IZQUIERDO & RAMÍREZ, 2017, figs 25G, 26B, 27A, E) and labium with two pairs of large and flattened setae (see IZQUIERDO & RAMÍREZ, 2017:26, fig. 27B). Females are distinguished from O. pavesiiformis by the epigastric region with highly convex ridge, anterior receptaculum with wide, rounded base, bifid tip; posterior receptaculum present, posterior apodeme bar-shaped ( Fig. 57 ; IZQUIERDO & RAMÍREZ, 2017:26, figs 41A, 44C).

Description. Male and female, see IZQUIERDO & RAMÍREZ (2017:26, figs 25-27, 36D-F, 41A, 43, 44C).

Biology. In Brazil, specimens were found inside or around houses and in building constructions.

Distribution. According to IZQUIERDO & RAMÍREZ (2017), this species occurs in Sri Lanka, Seychelles, Isla Reunion (Indian Ocean), Tanzania, Haiti, Jamaica and Brazil ( Fig. 61 ).

Material examined. In addition to the Brazilian material recorded to the states of Pará and Bahia by IZQUIERDO & RAMÍREZ (2017), only three specimens are recorded here: Rio de Janeiro , Rio de Janeiro , Campus UFRJ, 2♀, 23.IX.2010, Students from Universidade Federal do Rio de Janeiro leg. ( IBSP 167792 ); Bahia, Salvador, Parque Metropolitano do Pituaçu, ♂, 19.I-26.II.2008, D. U. Sena leg. ( IBSP 126003 ) .

Figures

Figs 49-57. Figs 49-52, Orchestina pavesiiformis Saaristo, 2007, male: 49, dorsal; 51, palp retrolateral. Female: 50, dorsal; 52, genitalia, ventral; 53- 57. Orchestina dentifera Simon, 1893, male: 53, dorsal; 55, projection of the chelicerae; 56, palp retrolateral. Female: 54, dorsal; 57, genitalia, ventral.

Figs 60, 61. Brazilian records of: 60, Pelicinus marmoratus and Triaeris stenaspis; 61, Orchestina pavesiiformis, O. dentifera, Opopaea concolor and O. deserticola.