Lacronia ceci Kury & Orrico, 2006

Carvalho, Rafael N. & Kury, Adriano B., 2023, Between areolated and band-shaped spots: a revision of Lacronia Strand, 1942 (Opiliones, Gonyleptidae), European Journal of Taxonomy 859, pp. 1-56 : 31-33

publication ID	https://doi.org/ 10.5852/ejt.2023.859.2043
publication LSID	lsid:zoobank.org:pub:8110A1B3-C4A4-4495-8AFD-1FED3D11D0A4
DOI	https://doi.org/10.5281/zenodo.7641352
persistent identifier	https://treatment.plazi.org/id/6A2C87B3-8F4B-5A02-FB27-F9F5FCA6DDEC
treatment provided by	Felipe
scientific name	Lacronia ceci Kury & Orrico, 2006
status

Treatment

Lacronia ceci Kury & Orrico, 2006 View in CoL View at ENA

Figs 4A View Fig , 10B View Fig , 11 View Fig

Lacronia ceci Kury & Orrico, 2006: 149 View in CoL , figs 1–12.

Diagnosis

Lacronia ceci can be differentiated from the other species of the genus by the following combination of characters: 1) ocularium convex with medial depression (in frontal view) ( Kury & Orrico 2006: fig. 3); 2) ocularium height (in lateral view) twice more prominent than the eyes diameter ( Kury & Orrico 2006: fig. 2); 3) ocularium with a pair of domed tubercles ( Kury & Orrico 2006: fig. 3); 4) mesotergum areas I–IV with pale-colored tubercles contrasting with its background ( Figs 4A View Fig , 10B View Fig ); 5) mesotergum area I with two pairs of conspicuous tubercles ( Fig. 4A View Fig ); 6) mesotergum area II of th with prominent tubercles organized in an anterior pair and four posterior pairs ( Fig. 4A View Fig ); 7) mesotergum area III with a paramedian pair of subconical apophyses ( Figs 4A View Fig , 10B View Fig ); 8) Fe IV dorsal face unarmed ( Kury & Orrico 2006: fig. 9); 9) Mt IV unarmed on the dorsal face ( Kury & Orrico 2006: fig. 10).

Type material

Holotype BRAZIL • ♂; State of Rio de Janeiro, Teresópolis, Parque Nacional da Serra dos Órgãos , Trilha Rancho Frio , próximo ao Rio Paquequer (close to Paquequer River); 22.456548° S, 42.999458° W; 1177 m a.s.l.; A.B. Kury et al. leg.; MNRJ 16189ꜝ (examined). GoogleMaps

Paratypes BRAZIL – 3 ♂♂, 3 ♀♀; same collection data as for holotype; MNRJ 16189ꜝ (examined) GoogleMaps • 1 ♂; same collection data as for holotype; MNRJ 17794ꜝ (examined) GoogleMaps .

Additional material examined

BRAZIL – State of Rio de Janeiro • 1 ♂; Teresópolis, Parque Nacional da Serra dos Órgãos ; Aug. 2001; Equipe Biota leg.; IBSP 2158ꜝ • 1 ♂; same collection data as for preceding; 4–5 May 1996; M.S. Baptista et al. leg.; MNRJ 6945ꜝ • 1 ♂; same collection data as for preceding; 21 Apr. 2005; MNRJ 18764ꜝ .

Description

See Kury & Orrico (2006) for the extensive description and illustrations. We included a picture of a ♂ in vivo ( Fig. 10B View Fig ). Herein, we provide a redescription of the ♂ (MNRJ 6945ꜝ) genitalia based on its SEM picture.

MALE GENITALIA ( Fig. 11A–D View Fig ). VP slightly divided in a distal part rectangle-shaped with latero-apical flaps, and a proximal part elliptical ( Fig. 11A, C View Fig ). VP ventral surface entirely covered with microsetae of type 1 ( Fig. 11C View Fig ). All macrosetae inserted on the ventro-lateral face of VP ( Fig. 11A–C View Fig ). MS A1–A3 cylindrical, thick, and acuminate, forming a triangle (A1 on the basal portion of the distal part, A2–A3 on the proximal part, A2 placed ventralmost) ( Fig. 11A–C View Fig ). MS B1 small, inserted ventrally, close to A2 ( Fig. 11C View Fig ). MS C1–C3 similar to the MS A, forming a triangle (C2 ventralmost) on the distal third of VP ( Fig. 11A–C View Fig ). MS D1 small, placed in mid distance between A1 and C3 ( Fig. 11A–B View Fig ). MS E1–E2 small, on the distal flange of VP – E1 between C1–C2, E2 close to C3 ( Fig. 11C View Fig ). Glans sac arising from the middle bulge on the podium, not extended as a dorsal process ( Fig. 11–B View Fig ). Stylus and its ventral process axis fused basally, forming a prominent pedestal ( Fig. 11B, D View Fig ). Stylus cylindrical, sub-straight (apex slightly bent ventrad), inserted on pedestal forming a 45º angle ( Fig. 11B, D View Fig ), without conspicuous head, with a few small sub-distal tiny spines on dorsal and ventral faces ( Fig. 11A–D View Fig ). Ventral process of similar length as stylus, almost straight, with an apical flabellum curved ventrad ( Fig. 11A–D View Fig ). Flabellum scallop-shaped with serrulations, measuring about 40% length of the ventral process stem ( Fig. 11A–D View Fig ).