102,262 research outputs found
Octostruma stenognatha Brown & Kempf
No full textOctostruma stenognatha Brown & Kempf, 1960 (Figs 1E, 3D, 42) Octostruma stenognatha Brown & Kempf, 1960: 196, figs. 25, 28. Holotype worker: Brazil, Sào Paulo, Agudos, 23 Jan 1955, in soil cover berlesate from very moist forest (W. W. Kempf, No. 1334) [MZSP] (not examined). Paratype workers, worker intercastes: same data as holotype; Sào Paulo, Cantareira, 1 Mar 1959 (Kempf & Santos); Rio de Janeiro, Itatiaia (J. F. Zikân, Coll. Borgmeier); Santa Catarina, Nova Teutonia, 27° 11' S, 52° 23' W, Aug 1952 (F. Plaumann) [MCZC] (examined). Paratype queen not examined. Geographic range. Southern Brazil. Comments. Octostruma stenognatha, O. batesi, and O. betschi are all similar in size and head shape and possibly form a clade. Although geographic coverage is poor, the known specimens form an allopatric or parapatric replacement series in South America.Published as part of Longino, John T, 2013, A revision of the ant genus Octostruma Forel 1912 (Hymenoptera, Formicidae), pp. 1-61 in Zootaxa 3699 on page 51, DOI: 10.11646/zootaxa.3699.1.
Octostruma stenognatha Brown & Kempf
No full textOctostruma stenognatha Brown & Kempf, 1960 (Figs 1E, 3D, 42) Octostruma stenognatha Brown & Kempf, 1960: 196, figs. 25, 28. Holotype worker: Brazil, Sào Paulo, Agudos, 23 Jan 1955, in soil cover berlesate from very moist forest (W. W. Kempf, No. 1334) [MZSP] (not examined). Paratype workers, worker intercastes: same data as holotype; Sào Paulo, Cantareira, 1 Mar 1959 (Kempf & Santos); Rio de Janeiro, Itatiaia (J. F. Zikân, Coll. Borgmeier); Santa Catarina, Nova Teutonia, 27° 11' S, 52° 23' W, Aug 1952 (F. Plaumann) [MCZC] (examined). Paratype queen not examined. Geographic range. Southern Brazil. Comments. Octostruma stenognatha, O. batesi, and O. betschi are all similar in size and head shape and possibly form a clade. Although geographic coverage is poor, the known specimens form an allopatric or parapatric replacement series in South America.Published as part of Longino, John T, 2013, A revision of the ant genus Octostruma Forel 1912 (Hymenoptera, Formicidae), pp. 1-61 in Zootaxa 3699 on page 51, DOI: 10.11646/zootaxa.3699.1.
Cyphomyrmex peltatus Kempf
No full textCyphomyrmex peltatus Kempf (Figs 30.32, 30.35) Cyphomyrmex peltatus Kempf, 1966:164, 181-3; Kempf described this species from specimens from the Brazilian States of Santa Catarina and Rio Grande do Sul. We have seen the following additional material, brazil: 'Sinop. rest area, Jesuit Society,' Matto Grosso, 11 Dec. 1984 (J.C. Trager; LACM, JCT), nest in rotten log, rain forest, bolivia: Caranavi, near radio, 800 m elev., 24-26 June 1981 (Kugler and Lambert; LACM), from Berlese funnel of leaf litter, steep and rocky secondary forest with few primary trees.Published as part of Snelling, R. R. & Longino, J. T., 1992, Revisionary notes on the fungus-growing ants of the genus Cyphomyrmex, rimosus-group (Hymenoptera: Formicidae: Attini)., pp. 479-494 in Insects of Panama and Mesoamerica: selected studies., Oxford :Oxford University Press on page 48
Eurhopalothrix alopeciosa Brown & Kempf 1960
No full textEurhopalothrix alopeciosa Brown & Kempf, 1960 Eurhopalothrix alopeciosa Brown & Kempf, 1960: 206. Holotype worker: Trinidad (N. A. Weber, No. 162.2) [MCZC] (not examined). Paratype worker: Trinidad, Maracas Valley, 23 Mar 1935 (N. A. Weber, No. 76) [MCZC]. Geographic range. Trinidad. Comments. This species is still known only from the types. It is most similar to E. pilulifera and E. clypeata, sharing the small size; a similar arrangement and number of erect setae, these almost circular, nearly as broad as wide; and abundant ground pilosity that is strongly flattened and conspicuous. Eurhopalothrix clypeata has a transverse carina on the clypeus. Eurhopalothrix pilulifera has the propodeal spine in the form of a rectangular lamella extending down the posterior face of the propodeum (propodeal spine acute in E. alopeciosa, with narrow infradental lamella). Eurhopalothrix xibalba is larger and has thinner ground pilosity. Measurements for this species, from Brown and Kempf (1960), are HW 0.50–0.53, HL 0.52, SL 0.32, CI 96.Published as part of Longino, John T., 2013, A review of the Central American and Caribbean species of the ant genus Eurhopalothrix Brown and Kempf, 1961 (Hymenoptera, Formicidae), with a key to New World species, pp. 101-151 in Zootaxa 3693 (2) on page 112, DOI: 10.11646/zootaxa.3693.2.1, http://zenodo.org/record/24915
Rhopalothrix kusnezovi Brown & Kempf 1960
No full text<i>Rhopalothrix kusnezovi</i> Brown & Kempf, 1960 <p> <i>Rhopalothrix kusnezovi</i> Brown & Kempf, 1960: 238, fig. 60. Holotype, queen: Argentina, Tucumán (N. Kusnezov, no. 10068) [IFML] (not examined).</p>Published as part of <i>Longino, John T. & Boudinot, Brendon E., 2013, New species of Central American Rhopalothrix Mayr, 1870 (Hymenoptera, Formicidae), pp. 301-324 in Zootaxa 3616 (4)</i> on page 312, DOI: 10.11646/zootaxa.3616.4.1, <a href="http://zenodo.org/record/220287">http://zenodo.org/record/220287</a>
Rhopalothrix diadema Brown & Kempf 1960
No full text<i>Rhopalothrix diadema</i> Brown & Kempf, 1960 <p> <i>Rhopalothrix diadema</i> Brown & Kempf, 1960: 239, fig. 59. Holotype, worker: New Guinea, lower Busu River, near Lae, <i>lowland</i> rainforest (E. O. Wilson, no. 1052) [MCZC] (not examined).</p>Published as part of <i>Longino, John T. & Boudinot, Brendon E., 2013, New species of Central American Rhopalothrix Mayr, 1870 (Hymenoptera, Formicidae), pp. 301-324 in Zootaxa 3616 (4)</i> on page 311, DOI: 10.11646/zootaxa.3616.4.1, <a href="http://zenodo.org/record/220287">http://zenodo.org/record/220287</a>
Rhopalothrix plaumanni Brown & Kempf 1960
No full textRhopalothrix plaumanni Brown & Kempf, 1960 Rhopalothrix plaumanni Brown & Kempf, 1960: 235, fig. 58. Holotype, worker: Brazil, Santa Catarina: Nova Teutônia (F. Plaumann) [MZSP, paratype worker at MCZC] (not examined). Rhopalothrix acutipilis Kempf, 1962: 28, fig. 28. Holotype, queen: Brazil, Santa Catarina: Nova Teutônia, V- 1960 (F. Plaumann) (not examined). New Synonymy. Comments. In this study queens were associated with workers for three Central American species. The queens differed from the workers in pilosity and the shape of the face. The queens bore numerous short bristles, which are lacking on the workers, and the worker faces had much stronger grooves and gibbosities. The characteristics of the mandible and labrum were shared between queens and workers. Examination of the figures for R. plaumanni and R. acutipilis, the types of which are from the same locality and by the same collector, suggest that R. acutipilis is the queen of R. plaumanni.Published as part of Longino, John T. & Boudinot, Brendon E., 2013, New species of Central American Rhopalothrix Mayr, 1870 (Hymenoptera, Formicidae), pp. 301-324 in Zootaxa 3616 (4) on page 315, DOI: 10.11646/zootaxa.3616.4.1, http://zenodo.org/record/22028
Wasmannia scrobifera Kempf
No full textWasmannia scrobifera Kempf Wasmannia scrobifera Kempf, 1961: 512, figs. 14, 15. Holotype worker: Poeroe man kemisa, Surinam (van der Drift). Comments Kempf described this species from a single worker. Numerous collections are now known from Costa Rica, and we have also seen material from Colombia and Brazil (Bahia and Matto Grosso states). In Costa Rica, this species is infrequently encountered. It inhabits mature lowland rainforest in the Atlantic lowlands. It has been collected in Winkler samples of sifted litter from the forest floor at Hitoy Cerere Biological Reserve, Casa Plastico near Rara Avis, the 500 m site on the Barva Transect, and La Selva Biological Station. Quantitative sampling by the ALAS project reveals it to be a low density species occurring most often in fogging samples, and less often in Winkler and Berlese samples of forest floor litter (Table 2). Dinah Davidson collected it in a Piper plant at La Selva. Mary Cornelius, an OTS student, found a nest in a leaf domatium of an ant-plant (Tococa, Melastomataceae) at Tortuguero, but it contained only workers and brood. Grant Gentry found small carton nests under leaves at La Selva (pers. comm.). Workers have been collected from the stomachs of dendrobatid frogs in the Choco region of Colombia. These results suggest that the species may nest in the low arboreal zone yet forage in the leaf litter on the forest floor.Published as part of Longino, J. T. & Fernández, F., 2007, Taxonomic review of the genus Wasmannia., pp. 271-289 in Memoirs of the American Entomological Institute 80 on page 28
Trachymyrmex dichrous Kempf, 1967, n. sp.
No full textTrachymyrmex dichrous n. sp. (Figs. 7-9) Worker (holotype). - Total length 5.0 (4.5-5.1) mm; head length 1.04 (0.99-1.07) mm; head width 0.99 (0.88-1.01) mm; maximum diameter of eyes 0.21 (0.17-0.22) mm; scape length 1.04 (0.93-1.07) mm; thorax length 1.65 (1.51-1.70) mm; petiole length 0.40 (0.35-0.40) mm; petiole width 0.24 mm; postpetiole length 0.38 (0.29-0.38) mm; postpetiole width 0.43 (0.40-0.43) mm; hind femur length 1.65 (1.49-1.70) mm. Head capsule black, rest of body medium brown, scapes and gaster with reddish hues. Long, yellowish brown, silky hairs abundant on head, thorax and pedicel, where they are recurved; same hairs, less recurved and more bristle-like on gaster, strictly oblique on scapes and legs. Dense pubescence of lighter color inclined or appressed on head, pedicel, gaster and appendages, erect or suberect on thorax, but never masking the integument. Head as shown in Fig. 7. Mandibles smooth and shining except laterally on. base where they are finely striate; chewing border with approximately 9 teeth. Head capsule very finely granulate, opaque. Clypeus antero-mesially notched. Frontal lobes triangular, frontal carinae diverging caudad, fading out at posterior third of head. Front and vertex inconspicuously tuberculate, integument rough. Preocular carinae not curving mesad above eyes, but fading out somewhat behind eyes. Posterior half of antennal scrobe indistinct. Supraocular tumulus more or less vestigial; occipital corners likewise not prominent but rounded and edentate. Occiput in full-face view distinctly notched in the middle. No carinae on vertex. Inferior occipital corner indistinctly marginate and rounded. Inferior border of cheeks practically immarginate. Eyes moderately convex, more than 15 facets across greatest diameter. Scapes of antennae as long as head capsule, greatly surpassing occipital corner. All funicular segments decidedly longer than broad. Thorax as shown in Fig. 8. Integument subopaque but sculpture indistinct. Hairs not arising from prominent tubercles. Pronotum with indistinct humeral angle, antero-inferior corner rounded, lateral teeth low, mesial teeth absent. Mesonotum with rather prominent anterior conical spines, facing obliquely laterad, followed by two pairs of small denticles, the posterior pair almost indistinct. Thorax constricted dorso-laterally at mesoepinotal junction, lacking a suture. Basal face of epinotum narrow, laterally indistinctly marginate; anteriorly indistinctly, posteriorly distinctly dentate; the latter representing the extremely short and inconspicuous epinotal spines. Epinotal stigma prominent. Femora thin, cylindrical, hind femora about as long as thorax. Petiole and postpetiole as shown in Figs. 8 and 9. Piligerous tubercles prominent. Petiole pedunculate, node proper twice as broad as peduncle. Postpetiole flattened above, with a deep postero-median excision. Gaster opaque, with minute piligerous tubercles rather evenly distributed. Tergite I antero-laterally vestigially marginate. Female and male unknown. Specimens examined: 22 workers, as follows: Brasil, Goias State, Anapolis, January 7, 1966, W. W. Kempf leg. 16 workers (holotype and paratypes, WWK n. 4230); same locality but different nest, January 4, 1966, W. W. Kempf leg. 4 workers (paratypes, WWK n. 4199); Sao Paulo State, Agudos, December 13, 1955, W. W. Kempf leg. 1 worker (paratype, WWK n. 1493); Mato Grosso State: Chapada, May 1959, C. Amann leg. 1 worker (WWK, paratype). Discussion. - Although highly distinctive, dichrous belongs to the species-group which is characterized by smooth mandibles, by a more or less defined antennal scrobe, by rather straight preocular carinae that do not curve mesad above eyes, by the lack of a basal lobe on antennae. This group comprises by far the greatest number of species in the genus. Within this group, dichrous may at once be recognized by the ensemble of the following characters: triangular frontal lobes, lack of paired carinae on vertex, lack of an inferior occipital spine or tooth, lack of midpronotal teeth, lack of conspicuous tubercles on thorax, postero-dorsal border of postpetiole deeply excised. In addition, dichrous has the antero-inferior angle of pronotum rounded, a character which is only found in isthmicus and another still undescribed but otherwise completely different species. T. isthmicus differs from dichrous in the shape of the frontal lobes, the completely margined antennal scrobe, the presence of midpronotal teeth, the quadricarinate tergum I of the gaster. The same characters, plus the dentate antero-inferior pronotal corner, separate oetkeri and urichi, the closest sympatric species, from dichrous. The present species, which was found in Anapolis near km 46 of the Goiania highway, in a scrub-covered xerophilus woodland ("cerrado") by the gravel road leading to Leopoldo Bulhoes, at an altitude over 1000 m. The single nest entrance was surrounded by a sizeable crater of loosely heaped up earth crumbs. The lone stray worker from Agudos was taken from the ground in open and rather dry parkland. Hence it is probable that this species is a typical denizen of the vast "campos", that characterize the vegetation of central Brazil.Published as part of Kempf, W. W., 1967, New ants from southeastern and central Brazil (Hymenoptera, Formicidae)., pp. 121-128 in Studia Entomologica (N. S.) 9 on pages 126-12
Cyphomyrmex cornutus Kempf
No full text<p>Cyphomyrmex cornutus Kempf</p> <p>(Figs 30.2, 30.30)</p> <p>Cyphomyrmex cornutus Kempf, 1968: 35-8; [[worker]], [[queen]]</p> <p>This very distinctive species was described from workers and females from Colombia. Two small series of workers have been seen from ecuador: 2-6 km above Cochancay on GuayaquilTambo highway, Prov. Canar, 500-700 m elev., 25 July 1973 (W. L. Brown; MCZ); Univ. Miami Research Sta., Rio Palenque, 30 July 1978 (G.J. Umphrey, no. 872; UMPH), from a piece of hollow 'bamboo' in forest. There are a few specimens in the LACM collections from costa rica, Heredia Prov.: Finca La Selva, various dates from March to June, 1974 (Talbot and Van Devender), all from berlese funnel of forest leaf litter.</p>Published as part of <i>Snelling, R. R. & Longino, J. T., 1992, Revisionary notes on the fungus-growing ants of the genus Cyphomyrmex, rimosus-group (Hymenoptera: Formicidae: Attini)., pp. 479-494 in Insects of Panama and Mesoamerica: selected studies., Oxford :Oxford University Press</i> on page 48
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