2,628 research outputs found
Acylophorus salifi Lott 2010
No full text<i>Acylophorus salifi</i> Lott, 2010 <p>(Fig. 22)</p> <p> <b>Material examined. NAMIBIA</b>: Kavango: Popa Falls, banks of Okavango, 18O7’S 21O35’E, M Uhlig, 27.ii.1992, 2.iii.1992, 13.iii.1992, 1.iv, 1993, 17.iv.1993, 22 (ZMHB).</p> <p> <b>Discussion.</b> The new records extend the known range of <i>A. salifi</i> to Namibia. Fig. 20 updates the distribution map given by Lott (2010). The bodies of all the Namibian specimens are coloured black with reddish elytra. This is the dominant colour form both in the southern populations found in Zambia and Zimbabwe and in West African populations. In the Congo catchment, the dominant colour form consists of a uniform brown colour and populations are subject to considerable variation in the form of the aedeagus. It may be that the Congolese populations represent a complex of species.</p>Published as part of <i>Lott, Derek A., 2012, Further studies of African Acylophorus Nordmann (Coleoptera: Staphylinidae: Staphylininae), pp. 39-52 in Zootaxa 3168</i> on pages 47-48, DOI: <a href="http://zenodo.org/record/279788">10.5281/zenodo.279788</a>
Acylophorus nitens Lott 2010
No full textAcylophorus nitens Lott, 2010 (Fig. 2) Material examined. BOTSWANA: Okavango Delta, Moremi Wildlife Reserve, 18 O 14 ’S 23 O 21 ’E, M Uhlig, 10.iii. 1994, 1Ƥ (ZMHB); Shakawe: banks of Okavango, 18 O 22 ’S 21 O 49 ’E, M Uhlig, 3.iii. 1994, 131Ƥ (ZMHB). NAMIBIA: Kavango: Mahango Game Reserve, banks of Okavango, 18 O 14 ’S 21 O 43 ’E, M & B Uhlig, 24.xi. 1993, 30.iii. 1999, 3 (ZMHB); Kavango: Popa Falls, banks of Okavango, 18 O 7 ’S 21 O 35 ’E, M Uhlig, 26.ii– 3. iii. 1992, 4 (ZMHB). SOUTH AFRICA: Western Cape: Wilderness NP, Langvlei, Malachite Bird Hide, 33 O 59 ’S 22 O 40 ’E, M & B Uhlig 30.xi. 1996, 23 (ZMBH). SUDAN: Melut, Taufikia, J. Konietsko 25.xii. 1913, 1Ƥ (ZMBH). TANZA- NIA: Konde: “Langenburg”, Fülleborn, 8.viii. 1899, 13 (ZMHB). ZAMBIA: Rimo-Marine Motel, banks of Kafue River, 15 O 49 ’S 28 O 12 ’E, M Uhlig, 17.iii. 1993, 13 (ZMHB). Discussion. The new records extend the known range of A. nitens to four new countries: Tanzania, Namibia, Botswana and South Africa. Fig. 2 updates the distribution map given by Lott (2010). The additional material studied exhibited wide variation in body colour, which supports the observation by Lott (2010) that particular geographic areas may be populated by distinctive colour forms. Zambian populations are dominated by individuals with bright orange pronota that contrast strongly with other body parts. Similar specimens also occur along the Okavango River, although they are mixed with specimens with darker pronota. The bodies of all the specimens examined from Zimbabwe, South Africa and Sierra Leone are uniformly dark in colour, although the number of specimens seen is too small to conclude with any confidence that these are dominant colour forms in these areas.Published as part of Lott, Derek A., 2012, Further studies of African Acylophorus Nordmann (Coleoptera: Staphylinidae: Staphylininae), pp. 39-52 in Zootaxa 3168 on pages 41-42, DOI: 10.5281/zenodo.27978
Acylophorus micans Lott, new species
No full text<i>Acylophorus micans</i> Lott, new species <p>(Figs 12, 62, 88, 120)</p> <p> <b>Description.</b> Length 4.5– 5mm. Head and elytra black. Pronotum dark brown. Abdominal tergites dark brown and iridescent. Appendages all pale, last segment of maxillary palpi sometimes darker.</p> <p>Head of average size (pronotum 1.7x wider than head), 1.1x wider than long with rounded well developed temples and pigmented area produced well in front of antennal insertion (Fig. 12). Eyes relatively small. Dorsal surface of head covered with dense micro-punctures. Dense pale pubescence behind eyes. Two pairs of interocular setae arising from foveate punctures much closer to eyes than each other. Four postocular setae visible on each side, additional seta on hind margin of eye absent. Maxillary palpi with terminal segment pubescent, markedly asymmetric, longer than glabrous penultimate segment which is broadly triangular (Fig. 62). First segment of antenna as long as next six. Segments I to II elongate, IV to X transverse (Fig. 88).</p> <p>Pronotum slightly transverse (1.2x wider than long) with sides well rounded, widest in basal half, covered with dense micro-punctures. One pair of dorsal setae and one pair of lateral setae. Marginal setae long. Elytra transverse (1.7x wider than long) with close, bright yellow pubescence arising from asperate punctures finer. Apical fringe of bristles longer than pubescence on other parts of the elytra. Pubescence on abdominal tergites long arising from asperate punctures that are stronger and sparser than on elytra. Abdomen appears wide because of overall small body size.</p> <p>Apex of sternite IX broadly rounded. Paramere bilobed, each lobe twisted round side margin of median lobe, pegs confusedly arranged along inner half, basal lip absent (Fig. 120). Median lobe of aedeagus not much longer than paramere.</p> <p> <b>Type material. Holotype</b> 3: “ Ivory Coast 7–17km. W. Abidjan I-63 / Coll. W.L. Brown Jr. leg. / HOLOTYPE <i>Acylophorus micans</i> <b>sp. n.</b> 3 det. DA Lott, 2009” (FMNH). <b>Paratypes</b> 1Ƥ: same data as holotype; 131Ƥ (mounted on same card): “Mts. De Cristal Gabon / gabonensis Fvl. / R.I.Sc.N.B. 17.479 Coll. et det. A. Fauvel / PARATYPE <i>Acylophorus micans</i> <b>sp. n.</b> 3 det. DA Lott, 2009” (IRSNB); 2: “Loango Gabon / Coll. et det. A. Fauvel A <i>cylophorus gabonensis</i> Fauv. R.I.Sc.N.B. 17.479 / PARATYPE <i>Acylophorus micans</i> <b>sp. n.</b> det. DA Lott, 2009” (IRSNB). Note that Fauvel gave this species the name <i>gabonensis</i> on his specimen labels, but he never published a description.</p> <p> <b>Further material examined. CAMEROON</b>: Missellele near Mt Cameroon, F Zumpt, 1936, 1Ƥ (FMNH).</p> <p> <b>Distribution and bionomics.</b> Known so far from Côte d’Ivoire, Cameroon and Gabon (Fig. 143). There are no data on habitat.</p> <p> <b>Comparative notes.</b> Somewhat similar to <i>A. densipennis</i> by virtue of the bright yellow pubescence on the elytra, but smaller in overall size and with relatively small eyes and long apical bristles on the elytra. The aedeagus is also completely different. Much smaller than other species in the group with small eyes. <b>Etymology.</b> The specific name is a present participle meaning “glittering” and refers to the iridescent abdomen.</p>Published as part of <i>Lott, Derek A., 2010, The species of Acylophorus Nordmann (Coleoptera: Staphylinidae: Staphylininae) in continental sub-Saharan Africa, pp. 1-51 in Zootaxa 2402</i> on pages 19-20, DOI: <a href="http://zenodo.org/record/275907">10.5281/zenodo.275907</a>
Acylophorus setiger Lott, new species
No full text<i>Acylophorus setiger</i> Lott, new species <p>(Figs 22, 71, 98, 136)</p> <p> <b>Description.</b> Length 6mm. Body brown, head darker. Legs pale. Antennae pale with middle segments darker. Palpi all pale.</p> <p>Head of average size (pronotum 1.7x wider than head), 1.1x wider than long with well developed temples behind large eyes (Fig. 22). Pigmented area of head extends in front of antennal insertion. Micro-punctures very sparse and concentrated toward front of head. Short pubescence behind eyes. Three pairs of interocular setae and a line of four postocular setae visible from above on each side. Maxillary palpi with two terminal segments pubescent, terminal segment very elongate, slightly asymmetric, longer than penultimate segment, which is also elongate (Fig. 71). First segment of antenna as long as next five. Segments I to III elongate, VII to X transverse (Fig. 98).</p> <p> Pronotum slightly transverse (1.2x wider than long) with sides well rounded, widest in basal half. Shining with no micro-punctures. One pair of dorsal setae and one pair of lateral setae. Marginal setae long and more numerous than in <i>A. orientalis</i>. Elytra very transverse (1.9x wider than long) with sparse pubescence and coarse asperate punctures which are stronger than in <i>A. orientalis</i>. Apical bristles much longer than hairs on the rest of the elytra. Abdominal tergites also with long, sparse pubescence. Punctures much sparser on apical half of each tergite than on basal half. Apical fringe of bristles on each tergite of two distinct lengths, the shorter bristles more numerous than the longer bristles, as in <i>A. trigonocephalus</i>.</p> <p>Male sternite IX with apex entire. Aedeagus with simple paramere, pegs arranged around margin with one or two scattered inside (Fig. 136). Median lobe with apex barely expanded, only just surpassing paramere.</p> <p> <b>Type material. Holotype</b> 3: “ Paratype / Mioko Fernando Poo 1700–2000m 8.XII.51 / De Keyser Lopdome et A. Villiers / PARATYPE / M. Cameron Bequest B.M. 1955-147 / <i>Acylophorus brevipennis</i> Cam. Cotype / HOLOTYPE <i>Acylophorus setiger</i> <b>sp. n.</b> 3 det. DA Lott, 2009” (BMNH).</p> <p> Note that Cameron gave this species a manuscript name <i>brevipennis</i> and labelled types accordingly, but he never published a description.</p> <p> <b>Distribution and bionomics.</b> Only known so far from a single specimen taken on the island of Bioko (formerly known as Fernando Po) in Equatorial Guinea (Fig. 147). There are no data on habitat.</p> <p> <b>Comparative notes.</b> Similar to <i>A. trigonocephalus</i>, but with short, very transverse elytra and distinctive aedeagus with paramere that is not bilobed. The paler colour may also be diagnostic.</p> <p> <b>Etymology.</b> The specific name is the masculine form of an adjective meaning “bristly” and refers to the long setae on the body.</p>Published as part of <i>Lott, Derek A., 2010, The species of Acylophorus Nordmann (Coleoptera: Staphylinidae: Staphylininae) in continental sub-Saharan Africa, pp. 1-51 in Zootaxa 2402</i> on pages 30-31, DOI: <a href="http://zenodo.org/record/275907">10.5281/zenodo.275907</a>
Limit Theorem for a Modified Leland Hedging Strategy under Constant Transaction Costs rate
No full textWe study the Leland model for hedging portfolios in the presence of a constant proportional transaction costs coefficient. The modified Leland's strategy recently defined by the second author, contrarily to the classical one, ensures the asymptotic replication of a large class of payoff. In this setting, we prove a limit theorem for the deviation between the real portfolio and the payoff. As Pergamenshchikov did in the framework of the usual Leland's strategy, we identify the rate of convergence and the associated limit distribution. This rate turns out to be improved using the modified strategy and non periodic revision dates.Asymptotic hedging ; Leland-Lott strategy ; Transaction costs ; Martingale limit theorem.
W. J. Lott
No full textVerso: [imprinted] H. B. Hillyer, Photographer, Austin, Texas., [handwritten] W. J. Lott
Senate Minority Leader Trent Lott on Larry King Live
No full textHosted by Larry King. Secretary of State Colin Powell, Minority Leader Trent Lott, Senator Joe Biden, and author Judith Miller are interviewed. Topics discussed include: Congressional resolution on war with Iraq; Saddam Hussein; biological or chemical weapons; Senate vote on Iraq war resolution; Senator Trent Lott\u27s 61st birthday; United Nations inspection for weapons of mass destruction in Iraq; Afghanistan; and the Washington DC sniper investigation
Acylophorus nitens Lott, new species
No full text<i>Acylophorus nitens</i> Lott, new species <p>(Figs 2, 34, 52, 78, 110)</p> <p> <b>Description.</b> Length 7–8mm. Variable in colour. Head black. Pronotum orange-brown with disc sometimes diffusely infuscated, rarely all black. Elytra dark brown to black. In all the Zambian specimens seen, the pronotum is bright orange contrasting strongly with the black head and elytra. Abdomen strongly iridescent. Legs pale. Antennae dark with base of segment I and sometimes segment XI pale. The terminal segment of the maxillary palpi is darker than the penultimate segment.</p> <p>Head of average size (pronotum 1.7x wider than head), more or less as long as wide with rounded temples and antennal insertion right on front margin (Fig. 2). Micro-punctures very sparse and confined to front of head and inside eyes. Dense short pubescence behind eyes. Two pairs of interocular setae arising from foveate punctures much closer to eyes than each other. A line of five postocular setae plus an additional short seta on hind margin of eye. Underside of head sparsely pubescent, strongly depressed at base with gular sutures separate, but very approximate toward base. Right mandible with three medial teeth; left mandible with two medial teeth (Fig. 34). Maxillary palpi with terminal segment elongate and densely pubescent, more or less symmetric, longer than glabrous penultimate segment which is not elongate (Fig. 52). First segment of antenna as long as next four. Segments I to VIII elongate, X transverse (Fig. 78).</p> <p> Pronotum only slightly transverse (1.1x wider than long) with rounded sides and widest in basal half. Shining with no micro-punctures. One pair of dorsal setae. One pair of lateral setae. Marginal setae shorter than in <i>A. orientalis</i>. Elytra transverse (1.5x wider than long) with pubescence arising from relatively fine asperate punctures. Apical fringe of thick bristles about as long as the hairs on the rest of the elytra. Abdominal tergites with evenly spaced, relatively sparse asperate punctures and a marginal fringe of bristles similar to those on the elytra.</p> <p> Paramere bilobed, lobes parallel and proximate, each lobe ridged, though not as strongly as in <i>A. orientalis,</i> pegs arranged along inner margins at apex (Fig. 110). Median lobe longer than paramere with rather narrow, spoon-shaped apex.</p> <p> <b>Type material. Holotype</b> 3: “S. SUDAN: Bahr el Ghazal Prov. 8 O 30’N-28 O 30’E / C.E. Tottenham collection. B.B. 1974-587 / HOLOTYPE <i>Acylophorus nitens</i> <b>sp. n.</b> det. DA Lott, 2009” (BMNH); <b>Paratypes</b> 76: same data as holotype. It is almost certain that the type series was collected at Wunatong, near Wau, on 19.iii.1955, as these data were recorded on a label on a specimen in the same tray in the Tottenham collection.</p> <p> This species was given the manuscript names, <i>A. dollmani</i> and <i>A. nigeriae,</i> by Bernhauer. Types were labelled accordingly, but he never published a description under either name.</p> <p> <b>Further material examined. R.D. CONGO</b>: Nizi, Blukwa, A Collart, 25.i.1929, 131Ƥ (ISRNB). <b>NIGERIA</b>: <b>Gombe</b>: Matzoro Lakes, L Lloyd, i.1929, 13 (BMNH). <b>SIERRA LEONE</b>: <b>Northern Province</b>: Kambai / Binkolo, W Rossi, 16. ii.1993, 13 (cBord). <b>SUDAN</b>: <b>Bahr el Ghazal</b>: Wunatong, near Wau, 8 O 80’N 28 O 30’E 19. iii.1955, 10 (BMNH). <b>ZAMBIA</b>: Namwala, HC Dollman, iii.1913, 7 (BMNH & FMNH). <b>ZIMBABWE</b>: Kutsaga near Harare Airport, W Rossi, 18. vi.1997, 2 Ƥ (cBord).</p> <p> <b>Distribution and bionomics.</b> Widespread in continental Africa ranging from Zimbabwe to Sudan and Sierra Leone (Fig. 141). There are long series of specimens taken at two localities in the Sudd wetlands in the floodplain of the Bahr el Ghazal in southern Sudan. There are no ecological data.</p> <p> <b>Comparative notes.</b> Similar to <i>A. orientalis,</i> but distinguished by the larger size, shorter marginal setae on the pronotum, the form of the mandibles and the distinctive aedeagus. In addition, the last segment of the maxillary palpi is more elongate as well as the medial segments of the antennae. See also notes under <i>A. rossii.</i></p> <p> <b>Discussion.</b> It is possible that particular geographic areas might be populated by distinctive colour forms. Specimens from Zambia were very distinctive by virtue of their contrasting orange pronota. This species and <i>A. rossii</i> appear to be closely related. The co-occurrence of the two species in a series from Sierra Leone, precludes treating the two taxa as subspecies or geographic races.</p>Published as part of <i>Lott, Derek A., 2010, The species of Acylophorus Nordmann (Coleoptera: Staphylinidae: Staphylininae) in continental sub-Saharan Africa, pp. 1-51 in Zootaxa 2402</i> on pages 9-10, DOI: <a href="http://zenodo.org/record/275907">10.5281/zenodo.275907</a>
Trent Lott 1996 Campaign Strategy
No full text1996 Campaign strategy for the Trent Lott for Mississipp
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