173,021 research outputs found
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
Jeffrey C. Kinkley, Chinese Justice, the Fiction: Law and Literature in Modern China
No full textPotter Pitman B., Kempf David. Jeffrey C. Kinkley, Chinese Justice, the Fiction: Law and Literature in Modern China. In: Perspectives chinoises, n°62, 2000. pp. 71-72
C. Kempf, A. Balestreri, U. Wotschikowsky, M. Fernex, Chez nous, le Lynx ? Mythes et réalité
No full textC. Kempf, A. Balestreri, U. Wotschikowsky, M. Fernex, Chez nous, le Lynx ? Mythes et réalité. In: Revue d'histoire des sciences, tome 34, n°1, 1981. pp. 93-94
C. Kempf, A. Balestreri, U. Wotschikowsky, M. Fernex, Chez nous, le Lynx ? Mythes et réalité
No full textC. Kempf, A. Balestreri, U. Wotschikowsky, M. Fernex, Chez nous, le Lynx ? Mythes et réalité. In: Revue d'histoire des sciences, tome 34, n°1, 1981. pp. 93-94
Cyphomyrmex hamulatus Kempf, 1966, n. stat.
No full text<p>15. Cyphomyrmex hamulatus Weber, n. stat.</p> <p>(Figs. 9, 22, 39, 47)</p> <p>Cyphomyrmex rimosus hamulatus Weber, 1938: 190 (Worker; Bolivia: C. Esperanza). - Weber, 1940: 412 (Worker; key).</p> <p>Types. - A few workers taken in March 1922 by W. M. Mann at Cachuela Esperanza on the lower Beni River in Bolivia. Four specimens (syntypes: NAW, MCZ, WWK) examined.</p> <p>Worker. - Total length 2.7 mm; head length 0.66 mm; head width 0.63-0.66 mm; thorax length 0.88-0.93 mm; hind femur length 0.72-0.75 mm. Ferruginous, with head and gaster somewhat infuscated. Very close to rimosus but presenting the following particularities:</p> <p>Frontal carinae (Fig. 9) quite sinuous. Antennal scape surpassing the occipital corner - which bears a minute acute denticle - by a distance equalling its maximum width. Funicular segments II and III combined as long as segment I. Eyes with 7-8 facets across the greatest diameter. All carinae very sharp and somewhat foliaceous. Promesonotal tubercles acutely pointed (Fig. 22). Basal face and upper half of declivous face of epinotum laterally carinate. Hind femora (Fig. 47) angulate at basal third, postero-ventral border with a narrow foliaceous crest. Petiolar node (Fig. 39) rather transverse, strongly constricted behind. Postpetiole with a shallow and broad postero-median impression, flanked by a pair of low and inconspicuous lateral ridges, terminating behind in a low rounded tubercle, not very prominent in profile; postero-lateral impressions rather deep. Tergum I of gaster with a very short and vestigial antero-median impression; sides of same tergum rather sharply marginate. Hairs short, simple and hooked, those of gaster are produced on distinct tubercles.</p> <p>Female and male unknown.</p> <p>Distribution. - Besides the types from Bolivia, the species has been recently collected on the Cerro Campana, Panama, at an altitude of 800-950 m, on January 17, 1960, G. B. FaircHild and W. L. Brown Jr. leg. 9 workers (B-92 and B-113).</p> <p>Discussion. - The sharp carinae and spines and the striking hook-like pilosity arising from minute but sharp tubercles on gaster characterize the present species. Since hamulatus is now also known from Panama, the evidence in favor of its specific independence seems to me quite convincing.</p>Published as part of <i>Kempf, W. W., 1966, A revision of the Neotropical fungus-growing ants of the genus Cyphomyrmex Mayr. Part II. Group of rimosus (Spinola) (Hym. Formicidae)., pp. 161-200 in Studia Entomologica (N. S.) 8</i> on pages 197-19
Perturbation spectrum in inflation with a cutoff
No full textIt has been pointed out that the perturbation spectrum predicted by inflation may be sensitive to a natural ultraviolet cutoff, thus potentially providing an experimentally accessible window to aspects of Planck scale physics. A priori, a natural ultraviolet cutoff could take any form, but a fairly general classification of possible Planck scale cutoffs has been given. One of those categorized cutoffs, also appearing in various studies of quantum gravity and string theory, has recently been implemented into the standard inflationary scenario. Here, we continue this approach by investigating its effects on the predicted perturbation spectrum. We find that the size of the effect depends sensitively on the scale separation between cutoff and horizon during inflation
Oxyepoecus reticulatus Kempf
No full text<p>Oxyepoecus reticulatus Kempf, 1974 (Figs. 4a-c, 8)</p> <p>Oxyepoecus reticulatus Kempf, 1974:502 (description of worker and gyne); Bolton, 1995:302 (catalogue).</p> <p>Worker (Holotype): t.l. = 1.90 (1.90-2.30); h.l. = 0.51 (0.48-0.56); h.w. = 0.41 (0.38-0.44); s.l. = 0.31 (0.29-0.35); m.l.e. = 0.07 (0.05-0.07); m.w.pr. = 0.31 (0.27-0.32); a.l. = 0.57 (0.51-0.62); h.f.l. = 0.33 (0.29-0.37); m.w.p. = 0.15 (0.13-0.15); m.w.pp. = 0.23 (0.16-0.23); c.i. 82 (77-84). Color chestnut brown. Mandible, antennae, ventral face of head, declivous face of propodeum, legs, petiolar node, postpetiole and gaster shining, smooth to very superficially and indistinctly sculptured. Remaining parts opaque with following sculpture: head dorsum and vertex irregularly costulate, except for smooth and shining strip between frontal carinae. Pronotum longitudinally costulate dorsally and laterally; strongly</p> <p>punctute on dorsum, weakly to imperceptible on side, mesonotum and remaining mesosomal side irregularly reticulate and punctate, coarser on metapleuron; basal face of propodeum with anterior half transversely costulate, posterior half with weak and almost imperceptible transverse costulae; declivous face shining. Short hairs relatively abundant on head; curved mesad on head dorsum, anteriorly curved on sides; subdecumbent to decumbent on antennae and legs; suberect and moderately abundant on dorsum of mesosoma, waist and gaster, the latter also with some shorter, recurved hairs.</p> <p>Head in Fig. 4a (f.f.v.): Mandible with basal border slightly longer than chewing border, with basal tooth separated from subbasal tooth by shallow diastema. Anterior tooth of clypeus with lateral denticle. Frontal carinae short, subparallel, little expanded laterad, ending at level of anterior orbit of eye, maximum width between their outer edges less than one third of head width. Compound eye very small, with some 4 facets r.g.d., total number of ommatidia circa 12. Scape fails to reach vertexal corner by distance exceeding maximum scape width. Funnicular segment I longer than VIII and IX taken individually, as long as II-IV combined; segments VIII and IX about as long as broad. Vertexal margin straight.</p> <p>Mesosoma (p.v.) in Fig. 4b. Promesonotum gently convex, transition between the dorsal and lateral surfaces of pronotum continuous, almost rounded. Metanotal groove not impressed in lateral view, metanotal suture indistinct. Basal face of propodeum posteriorly with a very small but pointed tooth. Declivous face laterally subcarinate.</p> <p>Petiole strongly pedunculate (d.v.), node high and dorsally rounded, somewhat compressed antero-posteriorly, but not much expanded laterad; subpetiolar process anteriorly shaped as small tooth, obliquely and forward oriented. Postpetiole much broader than petiole, expanded laterad; subpospetiolar process with anterior margin projecting as crest.</p> <p>Gyne (Paratype): t.l. = 2.50; h.l. = 0.55; h.w. = 0.45; s.l. = 0.33; m.l.e. = 0.11; m.w.pr. = 0.40; a.l. = 0.71; h.f.l. = 0.37; m.w.p. = 0.17; m.w.pp. = 0.27; c.i. 83. Resembling worker, with distinctive characters of caste. Cephalic dorsum finely, longitudinally costulate, with conspicuous interstitial punctures, sculpture attaining both vertex and eyes, as in worker. Eye with some 10 facets r.g.d. Laterotergite of pronotum, katepisternum and rest of mesosomal sides with horizontal costulae, the interstitial microsculpture almost imperceptible. Pronotum dorsolaterally finely and obliquely costulate. Scutum and scutellum longitudinally costulate, opaque. Basal face of propodeum with about 10 transverse rugulae. Propodeal teeth short but pointed, distance between their tips subequal to width of petiole. Posterior surface of postpetiole with several transverse costae. The available gyne specimen had no wings.</p> <p>Male: unknown.</p> <p>Examined material: BRAZIL: Minas Gerais: Viçosa, 06.v.1988, M.V.B. Queiroz col., cafezal [coffee plantantion] [20°45'S, 42°52'W] (1 [worker]); Paraná: Guaragi, v.1964, F. Plaumann leg. # 4008, [25°16'S, 50°14'W] (1 [worker] paratype); same locality, v.1964, F. Plaumann leg. # 4580, collected 1000 m 25°16'S, 50°14'W (1 [worker] paratype); Mariópolis, without date, F. Plaumann leg. [26°21'S, 52°33'W] (1 [gyne] paratype); Tunas, Parque das Lauráceas, 21-29.ii.2001, [R.R.] Silva and [F.] Eberhardt cols., transecto 1 Winkler 43 [24°51'16"S, 48°43'00,4"W] (3 [worker]); Rio Azul, x.1959, F. Plaumann [col.] # 3188, 1000 m [25°44'S, 50°47'W] (1 [worker] paratype); Rolândia, 06.iv.1955, W. Kempf [col.] # 1414 [23°18'S, 51°22'W] (2 [worker] paratypes); Santa Catarina: Chapecó, v.1957, F. Plaumann leg. [27°06'S, 52°37'W] (5 [worker] paratypes); same locality, vi.1960, same collector, (4 [worker] paratypes); same locality, vii.1960, same collector, (3 [worker] paratypes); Concórdia, vii.1958, F. Plaumann leg. [27°13'S, 52°01'W] (1 [worker] paratype); Linha Facão, v.1957, F. Plaumann [col.] (6 [worker] paratypes); P. Bormann, xii.1957, F. Plaumann [col.], (1 [worker] paratype); Seara (Nova Teutônia), viii.1952, F. Plaumann[col.], Borg[meier] collection # 5954 [27°09'S, 52°18'W] (12 [worker] holotype and paratypes); same locality, viii.1952, F. Plaumann [col.] 27°11'S, 52°23'W (6 [worker] paratypes); Seara, v-xii.1998, Rogério R. Silva col. 27°09'S, 52°18'W, transecto 1 Winkler (2 [worker]); São Paulo: Agudos, 25.iii.1955, W. Kempf [col.], # 1405 [22°27'S, 49°00'W] (8 [worker] paratypes); same locality, 4.i.1956, W. Kempf [col.], # 1552, (1 [worker] paratype); same locality, 08.i.1956, W. Kempf [col.], # 1560, (2 S paratypes); Campos do Jordão, 16.x.1956, W. Kempf [col.], # 1601 [22°44'S, 45°34'W] (1 [worker] paratype); Itatinga, 19.x.1991, B.H. Dietz col. mata litter[23°07'S, 48°35'W] (5 [worker]); Jacupiranga, xi.1963, F. Plaumann [col.], # 4089 [24°42'S, 48°00'W] (1 [worker]); [São Bernardo do Campo] Estrada Velha São Paulo - Santos [Old São Paulo - Santos Highway], 08.viii.1960, W. Kempf [col.] [23°49'S, 46°28'W] (6 [worker] paratypes).</p> <p>Comments: In the Rastratus species-group, O. reticulatus workers present exclusively the integument almost entirely covered by irregular somewhat undulate costulae on the head disc, mesosoma and dorsal petiolar peduncle (Kempf, 1974: Figs. 23, 24, 25 and 26).</p> <p>Oxyepoecus reticulatus has been registered in several localities in South and Southeastern Brazil from Minas Gerais to Santa Catarina states (Fig. 8), more commonly in relatively dry forests.</p>Published as part of <i>Albuquerque, N. L. de & Brandão, C. R. F., 2009, 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., pp. 289-309 in Papeis Avulsos do Departamento de Zoologia 49</i> on pages 303-30
Adhesion and host cell modulation: critical pathogenicity determinants of Bartonella henselae
No full textBartonella henselae, the agent of cat scratch disease and the vasculoproliferative disorders bacillary angiomatosis and peliosis hepatis, contains to date two groups of described pathogenicity factors: adhesins and type IV secretion systems. Bartonella adhesin A (BadA), the Trw system and possibly filamentous hemagglutinin act as promiscous or specific adhesins, whereas the virulence locus (Vir)B/VirD4 type IV secretion system modulates a variety of host cell functions. BadA mediates bacterial adherence to endothelial cells and extracellular matrix proteins and triggers the induction of angiogenic gene programming. The VirB/VirD4 type IV secretion system is responsible for, e.g., inhibition of host cell apoptosis, bacterial persistence in erythrocytes, and endothelial sprouting. The Trw-conjugation system of Bartonella spp. mediates host-specific adherence to erythrocytes. Filamentous hemagglutinins represent additional potential pathogenicity factors which are not yet characterized. The exact molecular functions of these pathogenicity factors and their contribution to an orchestral interplay need to be analyzed to understand B. henselae pathogenicity in detail
Oxyepoecus crassinodus Kempf
No full textOxyepoecus crassinodus Kempf. Two workers from Brazil, PR, Tunas, Parque das Lauráceas (24°51'16"S, 48°43'00,4"W), 21-29.ii.2001, Silva & Eberhard col. (samples 04, 19). Twelve workers from Brazil, PR, Morretes, Parque Estadual do PauOco(25°34'33,5"S, 48°53'19,5"W), Silva, R.R. & Dietz, B.H. col. (samples # 32, 39, 41, 43, 48). Two workers from Brazil, RS, Floresta Nacional São Francisco de Paula (29°23-27'S, 50°23-25'W) 13.vi.2001, Schmid, F.A. col. One worker from Brazil, S P, Cunha. P.E. Serra do Mar (23°15'03"S, 45°00'26"W), 21-22.iv.2001, A. Tavares & R.R. Silva col. (sample 36).Published as part of Albuquerque, N. L. de & Brandão, C. R. F., 2009, 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., pp. 289-309 in Papeis Avulsos do Departamento de Zoologia 49 on page 29
Cyphomyrmex longiscapus Kempf, 1966, NOV. SYN.
No full textGroup of Cyphomyrmex rimosus The rimosus-group has previously (Kempf, 1962: 30; 1964: 4) been defined by the ensemble of the following characters in the worker (and female) caste: Mandibles with 5 teeth only; two or no midpronotal tubercles present; preocular carina either curving mesad above eyes (most species of the group) or fading out above eyes, yet with the postero-lateral border of the antennal scrobe more or less defined as in the strigatus-group (longiscapus, wheeleri, costatus and presumably also flavidus). Following is a list of the presently recognized forms, including the not yet analyzed infraspecific forms of rimosus and several new synonyms (W = worker; F = female; M = male): bicornis Forel, 1895, W, eastern Brazil championi Forel, 1899, Al, Panama (= salvini Forel?) costatus Mann, 1922, W, F, M, Honduras, Panama, Colombia = colombianus Weber, 1940 - NOV. SYN. dentatus Forel, 1901, W, F, Mexico - NOV. STAT. flavidus Pergande, 1895, W, Mexico foxi Em. Andre, 1892, W, F, Jamaica hamulatus Weber, 1938, W, Bolivia, Panama - NOV. STAT. kirbyi Mayr, 1887, W, F, Colombia, Ecuador laevigatus Weber, 1938, W, Bolivia, Dutch Guiana longiscapus Weber, 1940, W, F, Colombia, Panama peltatus Kempf, n. sp., W, F - southern Brazil rimosus (Spinola, 1851), W, Brazil: Para = difformis (Fr. Smith, 1858) r. var. arnoldi Aguayo, 1932, W, Jamaica (=: foxi Em. Andre?) r. var. major Forel, 1912, W, Guatemala, Brazil: S. Paulo r. atratus Forel, 1912, W, F, M, Colombia r. breviscapus Weber, 1940, W, Panama r. cochunae Kusnezov, 1949, W, Argentina: Tucuman r. flavescens Weber, 1948, W, Haiti r. fuscus Emery, 1894, W, F, M, Cisandean South America = fusculus Emery, 1922 = curiapensis Weber, 1938 r. minutus Mayr, 1862, W, F, M, from U.S.A. to n. S. America = deformis Roger, 1863 = steinheili Forel, 1884 = var. comalensis Wheeler, 1907 r. trinitatis Weber, 1938, W, F, Trinidad, Guianas, Panama r. venezuelensis Weber, 1938, W, Venezuela salvini Forel, 1899, W, F, M, Panama, Costa Rica = acutus Weber, 1940 - NOV. SYN. transversus Emery, 1894, W, F, M, Brazil, Argentina - NOV. STAT. - olindanus Forel, 1901 = pencosensis Forel, 1914 - NOV. SYN. vorticis Weber, 1940, W, Bolivia, Brazil: Rondonia wheeleri Forel, 1900, W, F, M, U.S.A.: Tex., Cal.; Mexico The rimosus-group is much more widely distributed than the strigatus-group, ranging from southern U.S.A. both over the Antilles and Central America south to central Argentina. Yet only rimosus with its puzzling "races" and morphs occupies the entire range of the territory (except for northeastern Brazil!), whereas the remaining species are seemingly rather restricted in their distribution. The group reaches its highest degree of diversity and endemism in northern South America and in Central America. Most of the collected material, over 90% of the total, belongs to the ubiquitous rimosus s. L, whose striking variability is still not understood and had to be left out for a future study. Yet a slight improvement is introduced here by raising dentatus, hamulatus and transversus to full specific rank. In short, the presently proposed arrangement, while exhausting the best of my possibilites and efforts, is not to be considered as final. Only more copious material and a better knowledge of the variability, distribution and biology of all forms will permit to raise our knowledge of the Cyphomyrmex ants to a satisfactory level. Bionomics. - With the exception of a few well studied species, such as rimosus minutus Mayr (Weber, 1955) and costatus Mann (Weber, 1957a), very little, if any, information is available for most forms. One fact, however, regarding the fungi cultivated by these ants, has become firmly established in the meantime. Whereas some species (costatus and wheeleri) grow a basidiomycete fungus of the family Agaricaceae, which under the care of the ants forms bromatia of loosely clustered hyphal swellings or gongylidia (fungus garden of the flocculent type), other species (rimosus, dentatus, transversus) cultivate bromatia consisting of polygonal solid masses of cells of a yeastlike fungus, which Wheeler (1907: 772) named Tyridiomyces formicarum, but so far has not been truly identified. It is interesting to note that in the aforesaid species the difference in type of fungus and bromatia coincides with a morphological difference, shown by the development and direction of the preocular carina and the postero-lateral limit of the antennal scrobe; in costatus and wheeleri the preocular carina fades out above the eye, but the postero-lateral limit of the scrobe behind the eye is somehow indicated, whereas in rimosus and allies the preocular carina curves strongly mesad above the eye, and there is no proper postero-lateral limit to the scrobe. Only future research will show whether or not this relationship is constant and may be generalized. Key to the species for workers (C. flavidus is not included; C. championi is known only in the male caste). 1. Antennal scrobe reticulate and quite shining; preocular carina not curving mesad above eye, postero-lateral limit of antennal scrobe marked at least by difference of sculpture (Figs. 2, 19)........ 2 - Antennal scrobe densely but indistinctly granulate and opaque; preocular carina curving mesad above eye, the postero-laferaj border of scrobe being formed by another carina (if present), which arises from the occipital corner and extends foreward to the inferior or posterior border of eye, never joining the preocular carina (Figs. 3, 6, 11)..................................................... 4 2. Antennal scape in repose surpassing the occipital lobe (Fig. 2); pronotal tubercles absent (Fig. 18); cheeks immarginate below.... 1. longiscapus Weber - Antennal scape not surpassing occipital corners when in repose; lateral pronotal tubercles developed; cheeks marginate below.... 3 3. Disc of tergum I of gaster with a pair of strong longitudinal carinae (Fig. 19); midpronotal tubercles absent; postero-dorsal margin of petiole not drawn out nor bidentate (Fig. 38).... 4. costatus Mann - Disc of tergum I of gaster lacking a pair of longitudinal carinae; midpronotal tubercles present (Fig. 25); postero-dorsal margin of petiole drawn out as a foliaceous bidentate lamina (Fig. 37).... 2. wheeleri Forel 4. Antennal scapes not surpassing the strikingly auriculate occipital lobes (Figs. 4, 5); pronotum completely unarmed (Figs. 23, 26), its sides marginate only....................................... 5 - Antennal scapes usually surpassing the scarcely or gently drawn out occipital lobes; pronotum with the lateral tubercles always present.. 6 5. Anterior mesonotal tubercles conical, posterior ones low and tumuliform(Fig. 23); petiolar node much less than thrice as broad as long (Fig. 33)................................. 5. bicornis Forel - Thorax completely unarmed, its dorsum in profile evenly rounded (Fig. 26); petiolar node strikingly transverse, thrice as broad as long (Fig. 32).............................. 6. laevigatus Weber 6. Paired midpronotal tubercles absent........................... 7 - Paired midpronotal tubercles' present........................... 9 7. Hind femora not dilated nor ventrally carinate at basal third (Fig. 42); funicular segments II-VIII longer than broad.... 7. kirbyi Mayr - Hind femora dilated and ventrally carinate at basal third (Figs. 46| 50); funicular segments II-VIII about as long as broad........ 8 8. Epinotum unarmed, rounded in both directions (Fig. 20); antennal scapes well projecting beyond occipital corners (Fig. 13)...... 8. peltatus n. sp. - - Epinotum dentate; basal face laterally marginate to carinate (Fig. 21); antennal scapes scarcely projecting beyond tip of occipital corners (Fig. 8)............................. 9. dentatus Forel 9. Maximum expansion of frontal carinae less than interocular width (Fig. 6); thorax finely but distinctly rugose; lateral. pronotal and anterior mesonotal projections long and spine-like (Fig. 14).... 10. foxi Forel - Maximum expansion of frontal carinae exceeding interocular width; thorax lacking distinct rugulae; lateral pronotal and anterior mesonotal projections short, tubercular or at best conical...... 10 10. Apex of occipital lobes drawn out into a spine (Figs. 1, 3); anterior mesonotal tubercles high and conical (Figs. 15, 16)...... 11 '- Apex of occipital lobes not drawn out into a spine; anterior mesonotal tubercle low and usually tumuliform................ 12 11. Body without appressed scale-like hairs; basal face of epinotum sharply carinate in its entire length; posterior mesonotal tubercles low, not tooth-like (Fig. 15)................ 11. vorticis Weber - Body hairs scale-like; basal face of epinotum bluntly carinate on anterior half; posterior mesonotal projections conical (Fig. 16)...... 12. salvini Forel 12. Petiole strikingly transverse, thrice as broad as long (Fig. 30); postpetiole discally deeply and broadly impressed; body hairs thickly squamous.................................. 14. transversus Emery - Petiole narrower, not thrice as broad as long (Fig. 39); postpetiole with a shallower middorsal impression; body hairs finer...... 13 13. Hairs on head and gaster recurved or hook-like, not appressed nor strictly scale-like; thoracic tubercles sharply pointed (Fig. 22).. 15. hamulatus Weber - Hairs on head and gaster appressed and scale-like; thoracic tubercles low and tumuliform, never pointed.......... 16. rimosus (Spinola)Published as part of Kempf, W. W., 1966, A revision of the Neotropical fungus-growing ants of the genus Cyphomyrmex Mayr. Part II. Group of rimosus (Spinola) (Hym. Formicidae)., pp. 161-200 in Studia Entomologica (N. S.) 8 on pages 161-16
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