59,029 research outputs found
Penapis larraini Packer, new species
No full textPenapis larraini Packer, new species (Figs. 1, A–J) Diagnosis. The male can be differentiated from other species of the genus by the absence of sublateral processes on S 6 and the form of the sublateral processes on S 5 (Figs. 1 C–F). In side view, the latter have a narrow, digitiform apex, which is dorsoventrally flattened (Fig. 1 E). All other species in the genus have rounded (in P. penai angulate) sublateral processes on S 6 and approximately triangular processes on S 5, which are not dorsoventrally flattened, rather they are uniformly obliquely compressed. The female is most easily distinguished by the punctation of the metasomal terga: T 1 –T 4 have large, shallow punctures on the apical half (excepting the apical impressed areas) and T 2 –T 4 have minute, denser punctures bearing minute setae that are restricted to the anterior half of the tergum (slightly more extensive medially) (Fig. 1 J). Other species have the horizontal portion of T 1 impunctate, or almost so, and the minute punctures of T 2 –T 4 more extensive, at least on T 3 approaching the apical impressed areas medially to a distance much less than the length of the impressed area (Fig. 1 K). The male has similar sculpture but is more readily separated by the sternal characters noted above. Description. Male: Head width 1.85–1.90mm, ITW 1.4–1.45mm, wing length 4.8 –5.0mm, body length 7.4–7.6mm. Lower part of face moderately projecting (Fig. 1 A). Pterostigma with pale disc bordered by brown marginal veins. Midtibial spur gently curved almost to base. S 4 with more than 10 outwardly recurved plumose setae on each side; apical comb pale amber, more than 20 straight setae on each side, narrowly interrupted medially (Fig. 1 B), comb setae finer and longer than in other species. S 5 with median apical process shorter than sublateral process, laterally compressed and somewhat downcurved apically; sublateral process in lateral view with deep basal portion ending in acute angulation ventrobasad of dorsoventrally flattened, narrow apical projection (Figs. 1 C–E). S 6 lacking sublateral process, surface flat, apical concavity broad, truncate (Fig. 1 F). S 8 and genital capsule as in figures 1 G and 1 H. Female: Head width 4.8–5.2mm, ITW 1.42–1.52mm, wing length 4.8–5.2mm, body length 7.3–8.4mm. Midfemur flat over most of anterior surface, somewhat concave towards apex because of apicodorsal swelling. Scopa pale straw. Metasomal terga with sparse, shallow, large punctures on apical half (apical impressed areas excepted); punctures smaller, denser and more distinct on T 5 and T 6; anterior half of T 2 –T 4 with minute punctures separated by> their diameters; minute punctures extending slightly past midlength of tergum medially, less extensive laterally (Fig. 1 J). Material studied. Holotype male: CHILE Region I, Alto Patache, xi. 1997, W. Sielfeld. Allotype female, one male paratype and two female paratypes with identical label data, PUCV with one pair of paratypes at PCYU. Three female paratypes (one missing the head) same locality, 820m, one each from 30.xi.1997, 02.xii. 1997 and 07.xii. 1997, H. Larrain, two at PCYU, one at PUCV. Although not stated on any labels, the locality is at 20 ° 49 ’S; 70 °09’W. Etymology. The species is named after Horacio Larrain, eco-anthropologist and archaeologist of the Universidad Boliviariana in Iquique, northern Chile. The name is appropriate as his wife, Marta, is a sister of the renowned, late Chilean entomologist Luis Peña, after whom the genus and its type species were named. Dr. Larrain collected the first specimens of the species seen by the author and has been involved with numerous research projects on the locus typicus.Published as part of Packer, Laurence, 2012, Penapis larraini Packer, a new species of rophitine bee (Hymenoptera: Halictidae) from a fog oasis in Northern Chile, pp. 54-58 in Zootaxa 3408 on page 55, DOI: 10.5281/zenodo.21437
FIGURES 17A–R. Chilicola aenigma Packer, n in Fifteen new species of Chilicola (Hymenoptera: Apoidea; Colletidae)
No full textFIGURES 17A–R. Chilicola aenigma Packer, n. sp. Head of male: A. frontal view, B. lateral view. Head of female: C. lateral view, D. frontal view. E. male pronotum. F. Male hind femur and tibia. G. Female hind femur and tibia. H. Male T6, T7 and apex of S6. I. Lateral view of male metasomal venter. J–M. Male terminalia. J. S7. K. S8. L. genital capsule, dorsal views are at the left. M. Genital capsule, lateral view. N–R. Sting apparatus of female: N. hemitergite 7, O. hemitergite 8, P–Q. Furcula, dorsal and lateral views respectively. R. First and second valvifer with sting shaft. Stippling in A and B indicates pale colouration, in R a membranous region.Published as part of Packer, Laurence & Genaro, Julio A., 2007, Fifteen new species of Chilicola (Hymenoptera: Apoidea; Colletidae), pp. 1-55 in Zootaxa 1468 on page 53, DOI: 10.5281/zenodo.17662
FIGURES 9A–O. Chilicola biguttata Packer, n in Fifteen new species of Chilicola (Hymenoptera: Apoidea; Colletidae)
No full textFIGURES 9A–O. Chilicola biguttata Packer, n. sp. Head of male: A. frontal view, B. lateral view. C. frontal view of female head. Male: D. male antenna. E. pronotum. F. Male hind leg. G. Female foretarsus. H–K. Male terminalia. H. S7. I. S8. J. genital capsule lateral view, K. same. Dorsal views are to the left. L–P. Sting apparatus of female: L. hemitergite 7, M. hemitergite 8, N. First and second valvifer with gonostylus and sting shaft (latter broken in specimen), O–P. Furcula in dorsal and lateral views respectively. Stippling in A–C and F indicates pale colouration, elsewhere it indicates membranous regions.Published as part of Packer, Laurence & Genaro, Julio A., 2007, Fifteen new species of Chilicola (Hymenoptera: Apoidea; Colletidae), pp. 1-55 in Zootaxa 1468 on page 26, DOI: 10.5281/zenodo.17662
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
No full textThe prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
MARKET POWER IN BEEF PACKING: FEEDLOT "CAPTURE" AND ITS CAUSES
No full textConcentration in the beef packing industry has been rising for the past 25 years. Many studies of market power in beef packing are based on the conjectural variations framework, which depends on accurate estimates of packer input and processing costs. We propose an alternative measure of packer behavior which does not rely on estimates of packer costs. We also suggest how this measure could be used to draw tentative conclusions regarding packer behavior.Agribusiness, Marketing,
Letter from Carl Hayden to P. J Moran
No full textLetter from Carl T. Hayden to P. J. Moran concerning the alignment of the road to Bright Angel Trail
Letter from P. J. Moran to Carl Hayden
No full textLetter from P. J. Moran to Carl T. Hayden inquiring when construction will begin on the approach road to Bright Angel Trail
Letter from P. J. Moran to Carl Hayden
No full textLetter from P. J. Moran to Carl T. Hayden inquiring when construction will begin on the approach road to Bright Angel Trai
Documents: Greenough, Packer, Thomas, et al., 1868-1871
No full text1868 March 2 Note: Judgement in Court of Common Pleas of Northumberland Cty. Re: William J. Greenough & Jno. B. Packer and Robert G. Rieman, Henry Thomas & J. W. Hall for payment of 30,720 1868 October 28 to Henry Thomas from C. P. Wolverton (Sunbury) Western Union Telegraph re: ""brief will leave tomorrow am doing my best"" 1868 October 28 to J.B. Packer (Sunbury) from Henry Thomas (Philadelphia) Western Union Telegraph re: ""Are you going to be here this week answer immediately"" 1868 October 28 to Henry Thomas from J. B. Packer (Sunbury) Western Union Telegram r: ""No sir I do not expect to go down"" 1868 December 16 to Charles S. Longstreth (Treasurer Lehigh Valley R.R. Co.) from C. P. Wolverton (Sunbury) letter: Trevorton Coal Co., Henry Thomas, J. P. Boyer, Jacob R. Eby, R. G. Reimer, erection of breaker 1868 August 1 to December 31 Trevorton Mines (account) 1871 September 29 from W. J. Greenough (handwritten note) re: receipt from Israel W. Morris the deeds of Valentine Fegely, Isaac May, David Bohn to Isaac May, Thomas Baumgarden 1871 October 12 from W. J. Greenough (Sunbury) to Israel W. Morris (hand- written letter) re: Hartshorne to John B. Douty deed, mortgages to Boyd and Russell executed by Patterson, Boyd to Carey mortgage, Carey title to B. H. Howell and ultimately to Douty 1872 September 27 from Thomas Baumgardner (Lancaster) to Jno. B. Douty (handwritten letter) re: Judgment against the Lehigh Valley R.R. Co. and get satisfaction from Mr. Greenoug
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