127,005 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>
W. J. Lott
No full textVerso: [imprinted] H. B. Hillyer, Photographer, Austin, Texas., [handwritten] W. J. Lott
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>
Mercury Compound (MC-858) in Poliomyelitis -- 1952 -- Research, NFIP -- letter, 1952-03-04
No full textLetter from Lott, W. A. to Sabin, Albert B. dated 1952-03-04.Sabin Collection Fair Use Policy</a
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Acylophorus acufer Lott, new species
No full textAcylophorus acufer Lott, new species (Figs 23–28) Description. Length 5.5 –6.5mm. Body black except for dark chestnut margins of pronotum and the apical abdominal tergites, which are paler at both base and apex. Abdomen iridescent to varying degrees. Legs red. Antennae pale or dark with segment I always pale at base. Maxillary palpi usually all pale. Head small (pronotum 2.1x wider than head), more or less as long as wide with wide neck and temples barely suggested (Fig. 23). Antennae inserted right on front margin with no pigmented area in front. No micro-punctures visible at 80 x magnification. Short pubescence behind eyes localised and sparse. Two pairs of interocular setae arising from foveate punctures much closer to eyes than each other and five postocular setae visible from above on each side. No extra seta by hind margin of eye. Mandibles short with wide basal flange, a vestigial medial tooth discernible on the left mandible (Fig. 24). Maxillary palpi with terminal segment densely pubescent, narrow and more or less symmetric, longer than penultimate segment, which is short, triangular and glabrous (Fig. 25). First segment of antenna as long as next four (Fig. 26). Segments I to V elongate, VII to XI transverse. Pronotum slightly transverse (1.2x 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 long. Elytra strongly transverse (1.7x wider than long) with pubescence arising from fine, asperate punctures. Fringe of bristles on hind margin longer than the hairs on the rest of the elytra. Empodial setae between claws on mid- and hind tarsi very short. Asperate punctures on abdominal tergites denser at base, pubescence longer than on elytra. Male with apex of sternite IX entire. Paramere bilobed, each lobe long and pointed, needle-shaped, much longer than median lobe of aedeagus, pegs confusedly arranged around or slightly in front of mid-point of each lobe (Figs 27 and 28). Median lobe barely expanded at apex which is rounded. Type material. Holotype 3: “ Namibia 30.iii. 1999 18 O 14 ’S / 21 O 43 ’E Mahango GR, Kwetche piknik site, banks of Okavango, shore washing, lg M. + B. Uhlig / HOLOTYPE Acylophorus acufer sp. n. 3 det. DA Lott, 2010 ” (ZMHB). Paratypes 536 Ƥ same data as holotype (ZMHB, cJanak); 3: “NAMIBIA-Exp. ZMB 1992 Mahango Game Reserve, Seeufer, Ufervegetation gesiebt, 18 O 17 ’S / 21 O 43 ’E 28.II. 92, leg M. Uhlig” (ZMHB); 1 Ƥ: “ NAMIBIA 24.xi. 1993 18 O 14 ’S / 21 O 43 ’E Kavango: Mahango Game Reserve: Okavango Papyrus sievings, leg Uhlig” (ZMHB); 8: “ NAMIBIA 1 + 4.iii. 1994 Kavango: Piknik site, Okavango banks, sievings, flood refuse, reed leaf litter, grass leg M. Uhlig” (ZMHB); 131 Ƥ: “ NAMIBIA 1 + 4.iii. 1994 18 O 14 ’S / 21 O 43 ’E Kavango: Mahango Game Reserve, Baobab, Okavango banks, sievings, flood refuse, leg M. Uhlig” (ZMHB); 6: “NAMIBIA-Exp. ZMB 1992 Buffalo Camp, Kavango-Ufer, Ufervegetation gesiebt, 18 O09’S / 21 O 42 ’E 28.II. 92, leg M. Uhlig” (ZMHB); 6: “NAMIBIA-Exp. ZMB 1992 Popa Falls, Kavango-Ufer, Ufervegetation gesiebt, 18 O07’S / 21 O 35 ’E 27.II. 92, leg M. Uhlig” (ZMHB); 97: “NAMIBIA-Exp. ZMB 1992 Popa Falls, Kavango-Ufer, Schilf – Papyrus - Ufervegetation gesiebt, 18 O07’S / 21 O 35 ’E 2.III. 92, leg M. Uhlig” (ZMHB); 16: “NAMIBIA-Exp. ZMB 1992 Popa Falls, 18 O07’S / 21 O 35 ’E Kavango-Ufer, Schilf – Papyrus - Ufervegetation gesiebt, 13.III. 92, leg M. Uhlig” (ZMHB); 8: “ NAMIBIA 1.iv. 1993 18 O07’ 16 ”S / 21 O 34 ’ 51 ”E Popa Falls, island banks of Okavango banks, reed - papyrus sievings, leg Uhlig” (ZMHB); 7: “ NAMIBIA 17.iv. 1993 18 O07’ 16 ”S / 21 O 34 ’ 51 ”E Popa Falls, island banks of Okavango banks, sievings: reed + papyrus, leg M. Uhlig” (ZMHB); 5: “ NAMIBIA 28.ii – 6. iii. 1994 18 O07’ 16 ”S / 21 O 34 ’ 51 ”E Popa Falls, Okavango banks, sievings, Papyrus, reed, grass, leaf litter, leg M. Uhlig” (ZMHB); 5: “ BOTSWANA 3.iii. 1994 18 O 48 ’S / 22 O08’E Sepupa, Okavango-Delta, sievings: grass + flood refuse, leg M. Uhlig” (ZMHB); 1 Ƥ: “ BOTSWANA 6.iv. 1998 Shakawe Fishing Camp 18 O 27 ’S / 21 O 56 ’E leg J. Deckert, gesiebt” (ZMHB). Distribution and bionomics. All records to date of this species come from the Okavango River system in Botswana and Namibia, where it appears to be the most frequently collected species of Acylophorus. Specimens were mainly obtained by sieving marsh litter, but a few specimens were collected by splashing riverbanks. Comparative notes. This species can be distinguished from both A. salifi and A. lomaensis by the less transverse pronotum, the more slender last segment of the maxillary palpi and, above all, by the form of the male genitalia. In addition, it is larger and darker than A. lomaensis. Populations of A. salifi occurring along the Okavango appear to be of the typical colour form (mainly black with reddish elytra), so colour may be an additional character that is useful for distinguishing A. acufer and A. salifi in the field. Etymology. This specific name is a noun in apposition meaning “bearer of needles”, a reference to the extraordinary shape of the parameres.Published as part of Lott, Derek A., 2012, Further studies of African Acylophorus Nordmann (Coleoptera: Staphylinidae: Staphylininae), pp. 39-52 in Zootaxa 3168 on page 49, DOI: 10.5281/zenodo.27978
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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