A revision of the Neotropical Solenopsidini ant genus OXYEPOECUS Santschi, 1926 (Hymenoptera: Formicidae: Myrmicinae). 2. Final. Key for species and revision of the Rastratus species-group Albuquerque, Nicolas Lavour de Brandão, Carlos Roberto Ferreira Papéis Avulsos de Zoologia 2009 2009-12-31 49 23 289 309 De Albuquerque & Brandão 2009 [836,1009,472,496] Insecta Formicidae Oxyepoecus Animalia Hymenoptera 15 304 Arthropoda species rosai sp. nov.   ( Figs. 5a-c, 8)   Oxyepoecus rosai  n. sp. Albuquerque& Brandão. Holotype: worker. Brazil: São Paulo: Salesópolis[ 23°39’S, 45°53’W],  20-26.x.1997, C. Klingenberg& C.I. Yamamotocol., attracted to sardine baits; deposited in MZSP.   Paratypes(all from Brazil): São Paulo: forty one workersand two gynes from Salesópolis (Same locality of the Holotype, but collected in different dates and by different collectors);  33 workersand 2 gynes deposited in MZSP,  one workerdeposited in AMNH,  one workerdeposited in CASC,  one workerdeposited in CECL,  one workerdeposited in CPDC,  one workerdeposited in ICNC,  one workerdeposited in LACM,  one workerdeposited in MIZA,  one workerdeposited in USNM.  Etymology:we are pleased to dedicate this species to our friend and colleague, Rogério Rosa da Silva, the most efficient collector in our team. Worker ( Holotypeand paratypes(N = 33) variation within brackets): t.l. = 2.33 (2.30-2,40); h.l. = 0.60 (0.60-0.63); h.w. = 0.45 (0.43-0.48); s.l. = 0.35 (0.35-0.38); m.l.e. = 0.10 (0.10-0.13); m.w.pr. = 0.33 (0.30-0.35); a.l. = 0.65 (0.65-0.68); h.f.l. = 0.35 (0.35-0.38); m.w.p. = 0.20 (0.20-0.23); m.w.pp. = 0.25 (0.25-0.28); c.i. 75 (72-76). Color chestnut brown, gaster fuscous. Irregularly costulae and rugulate sculpture covering almost all head dorsum integument, except by clypeus, around antennal insertions and vertex; almost all mesosoma irregularly reticulate, except antero-lateral portion of pronotum, area around propodeal spiracle, petiolar peduncle dorsum, node of petiole and postpetiole smooth and shining. Hairs moderately abundant, short and subdecumbent, on head dorsum mesad oriented, anteriorly curved on head sides; dorsum of mesosoma with suberect hairs, backwards oriented on petiolar and postpetiole nodes; gaster without interspersed shorter and decumbent hairs. Head as in Fig. 5a(f.f.v.): Mandible with basal border slightly shorter than chewing border, basal tooth separated from subbasal tooth by shallow diastema. Anterior tooth of clypeus mesially directed with smaller lateral denticle. Frontal carinae gently convex and subparallel over antennal sockets, maximum width between outer edges always less than one fourth head width. Compound eye with 4-5 facets r.g.d., height less than oculomalar; total number of ommatidia not exceeding 13. Antennal scape fails to reach vertexal corner by distance approximately equal to maximum scape width. Funnicular segment I longer than II-V combined, segments II-VII distinctly broader than long, VIII and IX as long as broad. Vertexal margin straight. Mesosoma with promesonotum gently rounded on shoulders. Metanotal groove almost indistinct (p.v.). Basal face of propodeum immarginate on sides, posteriorly with a small tooth. Declivous face laterally weakly carinate. Petiole pedunculate, node scarcely compressed antero-posteriorly (d.v.) club shaped; subpetiolar process with a small, blunt and obliquely oriented denticle anteriorly. Postpetiole very broad, not as high as petiolar node; subpostpetiolar process shaped as small, transversal crest.   FIGURE 5:Scanning electron micrograph of the workers of  O. rosai n. sp.; a) head in full-face view; b) mesosoma in profile view; c) Petiole and postpetiole in dorsal view.   FIGURE 6:Map of distribution of  O. daguerreiand O. myops.   FIGURE 7:Map of distribution of  O. plaumanniand O. rastratus.   FIGURE 8:Map of distribution of  O. reticulatusand O. rosai. Gyne (variation of gynes paratypes, N = 2): t.l. = (2.80-2.93); h.l. = (0.60-0.63); h.w. = (0.50-0.53); s.l. = (0.40-0.43); m.l.e. = (0.25-0.30); m.w.pr. = (0.43-0.45); a.l. = (0.70-0.73); h.f.l. = (0.38-0.40); m.w.p. = (0.18-0.20); m.w.pp. = (0.33-0.35); c.i. (83-85). Almost same workers character states, with caste differences of: three ocelli very small, with same diameter, approximately half minimum thickness of antennal scape, compound eye with 8 facets r.g.d., and circa 40 inwhole eye. Male: Unknown.  Comments:In the Rastratus species-group,  O. rosaiworkers present the integument of mesopleuron and lateral pronotum irregularly sculptured, as in  O. myops,but differs from the later by the larger compound eyes, and by the smooth integument on the head vertex and lateral portions of the pronotum, petiolar node, and postpetiole.  The distribution of  O. rosaiincludes only localities at South and Southeastern Brazil, between São Pauloand Santa CatarinaStates ( Fig. 8). The specimens were attracted to sardine baits or recovered from the leaf-litter using Winkler extractors.  Examined material:  BRAZIL: Paraná: Tunas, Parque das Lauráceas,  21-29.ii.2001, [R.R.] Silvaand [F.] Eberhardtcols., transecto 1 Winkler44 [ 24°51’S, 48°43’W] (1 S);  Rio de Janeiro: Teresópolis, P[arque] N[acional] da S[erra] dos O[rgãos],  23-27.xi.1999, Rocha[R.P.], Dietz[ B.H.], Silva[R.R.] cols., Winkler# 07 and 17 [ 22°27’S, 42°59’W] (3 S);  Santa Catarina: Blumenau, P[arque] E[stadual] das Nascentes,  20-27. x.2000, Silva, R.R.and Eberhardt, F.cols., Winkler# 18 [ 27°06’S, 49°09’W] (2 S); Palhoça, P[arque] E[stadual] Serra do Tabuleiro,  02-10.vi.2003, Silva, R.R.and Dietz, B.H.cols., [ 27°44’S, 48°41’W] (1 S); São Bonifácio, P[arque] E[stadual] Serra do Tabuleiro,  08-13.iii.2004, Silva, R.R.; Dietz, B.H.and Albuquerque, N.L.cols., Winkler# 02, 08, 12, 13 and 14 [ 27°49’S, 48°54’W] (10 S);  Seara, vi-vii.1999, Rogério R. Silvacol. 27°09’S, 52°18’W(5 S);  São Paulo: Botucatu,  08.ix.1986, Forti, L.C.col [ 22°53’S, 48°26’W] (5 S); Salesópolis,  02-06.v.1997, D. Agosti, C.R.F. Brandãoand C.I.Yamamotocol., [ 23°39’S, 45°53’W] (16 S paratypesand 1 T paratype); same locality,  12-17.vi.1997, C.I.Yamamotocol, same coordinates (1 S paratypes); same locality,  05-07.vii.1997, C.I.Yamamotocol, same coordinates (9 S paratypes); same locality,  05-07.ix.1997, C.I.Yamamotocol, same coordinates (2 Sand 1 T paratypes); same locality,  20-26.x.1997, C. Klingenberg& C.I. Yamamotocol., attracted to sardine baits ( Sardinha) (1 S holotypeand 1 S paratype);  São Paulo, Parque da Independência,  12.x.1998, C.I.Yamamotocol., [ 23°35’S, 46°36’W] (1 S Paratypes). 1997-10-20 1997-10-26 1997-10-20 MZSP Albuquerque & Brandao. & C. Klingenberg & C. I. Yamamoto Brazil -23.65 Salesopolis 1254 -45.883335 15 304 1 Sao Paulo holotype [680,1119,760,784] Brazil Sao Paulo 15 304 1 Sao Paulo paratype MZSP Brazil 15 304 33 33 Sao Paulo paratype [834,1179,888,912] AMNH Brazil 15 304 1 1 Sao Paulo paratype CASC Brazil 15 304 1 1 Sao Paulo paratype CECL Brazil 15 304 1 1 Sao Paulo paratype [763,1099,952,976] CPDC Brazil 15 304 1 1 Sao Paulo paratype ICNC Brazil 15 304 1 1 Sao Paulo paratype [893,1224,984,1008] LACM Brazil 15 304 1 1 Sao Paulo paratype [680,1000,1016,1040] MIZA Brazil 15 304 1 1 Sao Paulo paratype USNM Brazil 15 304 1 1 Sao Paulo paratype Brazil Sao Paulo 18 307 1 Sao Paulo 2001-02-21 2001-02-29 2001-02-21 Parque das Lauraceas & Silva & Eberhardt & Winkler Brazil -24.85 Tunas 1249 -48.716667 18 307 1 Parana 1999-11-23 1999-11-27 1999-11-23 Teresopolis, P & Rocha & Dietz & B. HOlldobler & Silva & Winkler Brazil -22.45 Rio de Janeiro 1260 -42.983334 18 307 1 Rio de Janeiro 2000-10-20 2004-03-13 2000-10-20 Blumenau, P & das Nascentes & Silva, R. R. & Eberhardt, F. & Palhoca, P & Dietz, B. H. & Sao Bonifacio, P & Albuquerque, N. L. & Winkler Brazil Winkler -27.816668 Serra do Tabuleiro 1235 -48.9 Serra do Tabuleiro 18 307 1 Santa Catarina Rogerio R. Silva Brazil -27.15 Seara 1238 -52.3 18 307 1 Ceara 1986-09-08 1997-10-26 1986-09-08 Forti, L. C. & D. Agosti & C. R. F. Brandao & C. I. Yamamoto & C. Klingenberg & Sardinha Brazil 19 308 -23.65 Salesopolis 1254 -45.883335 Botucatu 18 307 7 Sao Paulo paratype 1998-10-12 C. I. Yamamoto Brazil -23.583334 Parque da Independencia 1255 -46.6 19 308 1 Sao Paulo paratype