A taxonomic revision of the Neotropical myrmicine ant genus Lachnomyrmex Wheeler (Hymenoptera: Formicidae) Feitosa, R. M. Brandão, C. R. F. Zootaxa 2008 1890 1 49 urn:lsid:biosci.ohio-state.edu:osuc_concepts:245584 Insecta Formicidae Lachnomyrmex CoL Animalia Lachnomyrmex victori Feitosa & Brandão Hymenoptera 43 Arthropoda species victori  Figures 17, 20    Holotypeworker. BRAZIL: Santa Catarina: Sao Bonifacio, P.E. da Serra do Tabuleiro, 27°49'06''S 48°54'41"W,  8-13.iii.2004, R.R. Silva, B.H. Dietz & N.L. Albuquerquecols, no. 27 [ MZSP].   Paratypes. same data as holotype, nos. 3/27 (3 workers and 1 gyne) [ MZSP]; same data, no. 27 (1 worker) [ CASC];  BRAZIL: Espirito Santo: Santa Teresa, E.B. Santa Lucia, 19°58'09''S 40°32'15''W,  20- 24.i.2002, J.H. Schoereder & C.R. Ribascols, no. 37 (2 workers) [ MZSP]; same data, no. 37 (1 worker) [ USNM];  Santa Catarina: Blumenau, P.E. das Nascentes, 27°06'15''S 49°09'14''W,  20-27.x.2000, R.R. Silva& F. Eberhardtcols, nos. 13/17/20/24 (4 workers) [ MZSP];  Parana: Tunas, P. das Lauraceas, 24°51'16''S 48°43'00''W,  21-29.ii.2001, R.R. Silva& F. Eberhardtcols, nos. 7/9/11/13/17/28/50 (6 workers e 1 gyne) [ MZSP]; same data, no. 7 (1 worker) [ AMNH]; same data, no. 7 (1 worker) [ BMNH]; same data, no. 7 (1 worker) [ ICNC]; same data, no. 7 (1 worker) [ IHVL]; same data, no. 9 (1 worker) [ INBC]; same data, no. 28 (1 worker) [ MIZA];  Sao Paulo: Salesopolis, E.B.B.,  12-17.iv.1997, B.H. Dietz & C. I. Yamamotocols, nos. 4/24 (2 workers and 1 gyne) [ MZSP]; same data, no. 7 (1 worker) [ WPMC]; same locality,  20-26.x.1997, C. Klingenberg & C.I. Yamamotocols, no. 22 (1 worker) [ MZSP].  Worker diagnosis. Body irregularly covered by vermiculate, short, relatively sparse rugae; promesonotum moderately convex; metanotal groove shallowly impressed to obsolete; propodeal spines straight; teeth of propodeal lobes reduced and swollen basally; dorsum of postpetiole with more than 10 long hairs; first tergite of gaster devoid of long flexuous hairs.   Holotypemeasurements. HL 0.73; HW 0.72; ML 0.24; SL 0.47; EL 0.14; WL 0.85; PSL 0.17; PL 0.36; PPL 0.14; GL 0.98; TL 3.30; CI 98; SI 66; OI 20. Worker measurements (n=33). HL 0.52-0.76; HW 0.54-0.76; ML 0.16-0.25; SL 0.30-0.51; EL 0.08- 0.16; WL 0.57-0.93; PSL 0.11-0.21; PL 0.22-0.39; PPL 0.12-0.19; TL 2.26-3.51; GL 0.68-1.02; CI 97-103; SI 51-66; OI 15-22. Gyne measurements (n=9). HL 0.69-0.78; HW 0.69-0.79; ML 0.21-0.26; SL 0.44-0.49; EL 0.18-0.21; WL 0.85-1.06; PSL 0.16-0.22; PL 0.35-0.41; PPL 0.13-0.18; GL 0.94-1.17; TL 3.21-3.83; CI 99-101; SI 61-66; OI 24-279. Worker description. Body reddish-brown to black, with gaster and appendages slightly lighter. Body irregularly covered by short, relatively sparse rugae, somewhat longer and longitudinal on head dorsum; mandibles with short longitudinal striae restricted to basal portion; petiole and postpetiole finely and irregularly rugose. Abundant pilosity on head and promesonotum dorsum; dorsum of petiolar node and postpetiole each with more than 10 long hairs; first gastral tergite entirely devoid of long flexuous hairs. Head usually as long as broad, with vertexal margin moderately convex; frontal lobes laterally rounded; eyes with about seven facets on maximum diameter. Promesonotum moderately convex in profile, but distinctly higher than propodeum level; metanotal groove shallow to virtually obsolete; propodeal spines straight; teeth of propodeal lobes swollen and very reduced, with less than one-third of propodeal spines length. Petiolar node moderately elevated, dorsally rounded, and with the posterior face weakly sloped in lateral view; postpetiole weakly convex dorsally and without ventral processes. Gyne. Differing from worker by the following combination of characters: body pilosity denser and shorter, with first tergite of gaster bearing around 10 long flexuous hairs at the anterior portion, near postpetiole insertion; eyes with around 13 facets at greatest diameter; petiolar node comparatively lower.  Etymology. The name of this species is an homage to Victor Vieira da Silva, son of the colleague myrmecologist Rogerio Rosa da Silva.  Comments. While examining specimens of Lachnomyrmex plaumannifrom the MZSPcollection, one of us (RMF) noticed that there was a morphologically distinct subgroup of individuals, all collected in the same range of L. plaumanni. In the pin of one of these individuals there was a manuscript note made by Father Thomas Borgmeierin which he recognized a group of workers that differed from the typical L. plaumanniby the larger size and straight propodeal spines, rather than the curved ones of the latter. The study of recently collected Lachnomyrmexspecimens deposited in the MZSPcollection, led us to recognize these specimens and several others as a different and undescribed species sympatric with L. plaumanni.  FIGURE 17. Paratypeworker of Lachnomyrmex victorifrom Santa Catarina, Brazil: A, head in full face view; B, lateral view; C, dorsal view. Image by Michele Esposito, specimen CASENT0173877.   FIGURE18. Distribution maps for the Lachnomyrmexspecies ( L. fernandezi,  L. grandis,  L. laticeps,  L. lattkei,  L. longinoi, L. pilosus, and L. platynodus).   FIGURE19. Distribution maps for the Lachnomyrmexspecies ( L. haskinsi,  L. mackayi,  L. nordestinus,  L. plaumanni, L. regularis, and L. scrobiculatus).   FIGURE20. Distribution map for the Lachnomyrmexspecies ( L. amazonicus, L. longinodus, and L. victori). Further than the characters pointed out by Borgmeier, workers of L. victorican be distinguished from L. plaumanniand the other congeners also by the promesonotum only moderately elevated, metanotal suture ill impressed, dorsum of postpetiole with more than 10 long hairs, and first gastral tergite devoid of long hairs. As far as we know, L. victorioccurs in the Atlantic Forest of southeastern Brazil, at 300-1050melevation. As in L. plaumanni, there is a single record of a L. victoriworker foraging in the vegetation. It was collected on the trunk of Croton floribundus (Euphorbiaceae), in the state of Sao Paulo (M.S. Morini, pers. comm.).   Additional material examined. BRAZIL: Bahia: Ilheus,  iv.1996, J. Assiscol. (1 gyne) [ CPDC]; same locality,  x.1996, L.S. Ramoscol., no. 5119 (2 workers) [ CPDC];  Marau,  23.x.1998, J.R.M. Santoscol. (1 worker) [ MZSP];  Sao Jose, Vitoria Puaias, 15°03'N 39° 20'W,  22.v.2000, J.R.M. Santoscol., no. A38 (1 worker) [ CPDC];  Parana: Bocaiuva,  v.1963, F. Plaumanncol., no. 4000 (1 gyne) [ MZSP]; same locality,  xi.1963, F. Plaumanncol., no. 3870 (1 worker) [ MZSP];  Santa Catarina: Chapeco,  vi.1960, F. Plaumanncol. (1 gyne) [ MZSP];  Concordia,  ix.1959, F. Plaumanncol., no. 8296a (1 worker) [ MZSP];  Ibicare,  vii.1959, F. Plaumanncol., no. 3128 (4 workers) [ MZSP];  Nova Teutonia,  ix.1954, F. Plaumanncol., no. 8216 (4 workers and 2 gynes) [ MZSP]; same locality,  xi.1957, F. Plaumanncol. (1 worker) [ MZSP]; same locality,  xii.1958, F. Plaumanncol., no. 8307 (1 worker) [ MZSP]; same locality,  vii.1959, F. Plaumanncol. (1 worker) [ MZSP]; same locality,  vi.1960, F. Plaumanncol., no. 3960 (1 worker and 1 gyne) [ MZSP]; same locality,  vi.1963, F. Plaumanncol., no. 3710 (1 gyne) [ MZSP];  Seara,  viii.1958, F. Plaumanncol., no. 2708 (3 workers) [ MZSP]; same data (1 worker) [ MZSP];  Sao Paulo: Cunha, P.E. da Serra do Mar, Nucleo Indaia, 23°15'03''S 45°00'26"W,  21-22.iv.2001, R.R. Silva& A.A. Tavarescols, no. 31 (3 workers) [ MZSP];  Mogi das Cruzes, P.N.M. da Serra do Itapeti, Trilha do Esquilo,  22.iv.1999, 23°29'22''S 46°11'55"W, A.S.M. Cassarotticol., no. C2.2 (1 worker) [ CPMS];  Ribeirao Grande, P.E. Intervales, Barra Grande, 24°18'30''S 48°25'10''W,  5.ii.1999, A.A. Tavarescol., no. T2-15 (1 gyne) [ MZSP]. 1416638513 2004-03-08 2004-03-13 2004-03-08 MZSP R. R. Silva, B. H. Dietz & N. L. Albuquerque Brazil -27.818335 Sao Bonifacio, P. E. da Serra do Tabuleiro 1 -48.911392 Santa Catarina Holotype 1416638519 2004-03-08 2004-03-13 2004-03-08 MZSP R. R. Silva, B. H. Dietz & N. L. Albuquerque Brazil -27.818335 Sao Bonifacio, P. E. da Serra do Tabuleiro 1 -48.911392 Santa Catarina Paratypes 1416638510 2004-03-08 2004-03-13 2004-03-08 CASC R. R. Silva, B. H. Dietz & N. L. Albuquerque Brazil -27.818335 Sao Bonifacio, P. E. da Serra do Tabuleiro 1 -48.911392 Santa Catarina 1416638489 2002-01-20 2002-01-24 2002-01-20 MZSP J. H. Schoereder & C. R. Ribas Brazil -19.969168 Santa Teresa 1 -40.5375 E. B. Santa Lucia Espirito Santo 1416638498 2002-01-20 2002-01-24 2002-01-20 USNM J. H. Schoereder & C. R. Ribas Brazil -19.969168 Santa Teresa 1 -40.5375 E. B. Santa Lucia Espirito Santo 1416638507 2000-10-20 2000-10-27 2000-10-20 MZSP R. R. Silva, F. Eberhardt Brazil -27.104168 Blumenau 1 -49.15389 P. E. das Nascentes Santa Catarina 1416638518 2001-02-21 2001-02-29 2001-02-21 MZSP R. R. Silva, F. Eberhardt Brazil -24.854445 Tunas 1 -48.716667 P. das Lauraceas Parana 1416638522 2001-02-21 2001-02-29 2001-02-21 AMNH R. R. Silva, F. Eberhardt Brazil -24.854445 Tunas 1 -48.716667 P. das Lauraceas Parana 1416638528 2001-02-21 2001-02-29 2001-02-21 BMNH R. R. Silva, F. Eberhardt Brazil -24.854445 Tunas 1 -48.716667 P. das Lauraceas Parana 1416638512 2001-02-21 2001-02-29 2001-02-21 ICNC R. R. Silva, F. Eberhardt Brazil -24.854445 Tunas 1 -48.716667 P. das Lauraceas Parana 1416638542 2001-02-21 2001-02-29 2001-02-21 IHVL R. R. Silva, F. Eberhardt Brazil -24.854445 Tunas 1 -48.716667 P. das Lauraceas Parana 1416638534 2001-02-21 2001-02-29 2001-02-21 INBC R. R. Silva, F. Eberhardt Brazil -24.854445 Tunas 1 -48.716667 P. das Lauraceas Parana 1416638546 2001-02-21 2001-02-29 2001-02-21 MIZA R. R. Silva, F. Eberhardt Brazil -24.854445 Tunas 1 -48.716667 P. das Lauraceas Parana 1416638538 1997-04-12 1997-04-17 1997-04-12 MZSP B. H. Dietz & C. I. Yamamoto Brazil Salesopolis Sao Paulo 1416638526 1997-04-12 1997-04-17 1997-04-12 WPMC B. H. Dietz & C. I. Yamamoto Brazil Salesopolis Sao Paulo 1416638527 1997-10-20 1997-10-26 1997-10-20 MZSP C. Klingenberg & C. I. Yamamoto Brazil Salesopolis Sao Paulo 1416638541 1996-04 CPDC J. Assis Brazil Ilheus Bahia 1416638547 1996-10 CPDC L. S. Ramos Brazil Ilheus Bahia 1416638525 1998-10-23 MZSP J. R. M. Santos Brazil Marau Bahia 1416638511 2000-05-22 CPDC J. R. M. Santos Brazil 15.05 Vitoria Puaias 1 -39.333332 Sao Jose Bahia 1416638532 1963-05 MZSP F. Plaumann Brazil Bocaiuva Parana 1416638529 1963-11 MZSP F. Plaumann Brazil Bocaiuva Parana 1416638520 1960-06 MZSP F. Plaumann Brazil Chapeco Santa Catarina 1416638531 1959-09 MZSP F. Plaumann Brazil Concordia Santa Catarina 1416638530 1959-07 MZSP F. Plaumann Brazil Ibicare Santa Catarina 1416638536 1954-09 MZSP F. Plaumann Brazil Nova Teutonia Santa Catarina 1416638548 1957-11 MZSP F. Plaumann Brazil Nova Teutonia Santa Catarina 1416638533 1958-12 MZSP F. Plaumann Brazil Nova Teutonia Santa Catarina 1416638514 1959-07 MZSP F. Plaumann Brazil Nova Teutonia Santa Catarina 1416638523 1960-06 MZSP F. Plaumann Brazil Nova Teutonia Santa Catarina 1416638537 1963-06 MZSP F. Plaumann Brazil Nova Teutonia Santa Catarina 1416638544 1958-08 MZSP F. Plaumann Brazil Seara Santa Catarina 1416638550 1958-08 MZSP F. Plaumann Brazil Seara Santa Catarina 1416638552 2001-04-21 2001-04-22 2001-04-21 MZSP P. E. da Serra do Mar, R. R. Silva, A. A. Tavares Brazil -23.250834 Nucleo Indaia 1 -45.00722 Cunha Sao Paulo 1416638540 1999-04-22 CPMS A. S. M. Cassarotti Brazil -23.489445 Trilha do Esquilo 1 -46.198612 Mogi das Cruzes, P. N. M. da Serra do Itapeti Sao Paulo 1416638561 1999-02-05 MZSP A. A. Tavares Brazil -24.308332 Barra Grande 1 -48.419445 Ribeirao Grande, P. E. Intervales Sao Paulo