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A species-level taxonomic review and host associations of Glyptapanteles (Hymenoptera, Braconidae, Microgastrinae) with an emphasis on 136 new reared species from Costa Rica and Ecuador.

Arias-Penna DC, Whitfield JB, Janzen DH, Winifred Hallwachs, Dyer LA, Smith MA, Hebert PDN, Fernández-Triana JL.

Zookeys. 2019 Nov 20;890:1-685. doi: 10.3897/zookeys.890.35786. eCollection 2019.


Aprica: a new genus and life history for the pteridivore Xanthiapatula Druce, 1898 (Lepidoptera, Noctuidae).

Goldstein PZ, Janzen DH, Hallwachs W.

Zookeys. 2019 Jul 24;866:127-145. doi: 10.3897/zookeys.866.27647. eCollection 2019.


A new species of Trismegistomya Reinhard (Diptera: Tachinidae) from Area de Conservación Guanacaste in northwestern Costa Rica.

Fleming AJ, Wood DM, Smith MA, Dapkey T, Hallwachs W, Janzen DH.

Biodivers Data J. 2019 Apr 10;7:e29130. doi: 10.3897/BDJ.7.e29130. eCollection 2019.


Genomes of skipper butterflies reveal extensive convergence of wing patterns.

Li W, Cong Q, Shen J, Zhang J, Hallwachs W, Janzen DH, Grishin NV.

Proc Natl Acad Sci U S A. 2019 Mar 26;116(13):6232-6237. doi: 10.1073/pnas.1821304116. Epub 2019 Mar 15.


Gypsy moth genome provides insights into flight capability and virus-host interactions.

Zhang J, Cong Q, Rex EA, Hallwachs W, Janzen DH, Grishin NV, Gammon DB.

Proc Natl Acad Sci U S A. 2019 Jan 29;116(5):1669-1678. doi: 10.1073/pnas.1818283116. Epub 2019 Jan 14.


Review of Lophomyra Schaus, 1911 (Lepidoptera, Noctuidae): a new combination and re-descriptions of species newly associated with ferns (Polypodiaceae).

Goldstein PZ, Janzen DH, Proshek B, Dapkey T, Hallwachs W.

Zookeys. 2018 Oct 8;(788):135-165. doi: 10.3897/zookeys.788.21235. eCollection 2018.


A review of Leucosigma Druce, 1908: a newly discovered case of fern-feeding and descriptions of three new species (Lepidoptera, Noctuidae).

Goldstein PZ, Janzen DH, Proshek B, Dapkey T, Hallwachs W.

Zookeys. 2018 Oct 8;(788):87-133. doi: 10.3897/zookeys.788.21222. eCollection 2018.


A Sequel to Sanger: amplicon sequencing that scales.

Hebert PDN, Braukmann TWA, Prosser SWJ, Ratnasingham S, deWaard JR, Ivanova NV, Janzen DH, Hallwachs W, Naik S, Sones JE, Zakharov EV.

BMC Genomics. 2018 Mar 27;19(1):219. doi: 10.1186/s12864-018-4611-3.


Revision of the species of Lytopylus from Area de Conservación Guanacaste, northwestern Costa Rica (Hymenoptera, Braconidae, Agathidinae).

Kang I, Chapman EG, Janzen DH, Hallwachs W, Tanya Dapkey, Smith MA, Sharkey MJ.

Zookeys. 2017 Dec 12;(721):93-158. doi: 10.3897/zookeys.721.20287. eCollection 2017.


Caterpillars lack a resident gut microbiome.

Hammer TJ, Janzen DH, Hallwachs W, Jaffe SP, Fierer N.

Proc Natl Acad Sci U S A. 2017 Sep 5;114(36):9641-9646. doi: 10.1073/pnas.1707186114. Epub 2017 Aug 22.


Five new species of Vibrissina Rondani (Diptera: Tachinidae) from Area de Conservación Guanacaste in Northwestern Costa Rica.

Fleming AJ, Wood DM, Smith MA, Dapkey T, Hallwachs W, Janzen DH.

Biodivers Data J. 2017 Jul 18;(5):e10967. doi: 10.3897/BDJ.5.e10967. eCollection 2017.


Nuclear genomes distinguish cryptic species suggested by their DNA barcodes and ecology.

Janzen DH, Burns JM, Cong Q, Hallwachs W, Dapkey T, Manjunath R, Hajibabaei M, Hebert PDN, Grishin NV.

Proc Natl Acad Sci U S A. 2017 Aug 1;114(31):8313-8318. doi: 10.1073/pnas.1621504114. Epub 2017 Jul 17.


Varying and unchanging whiteness on the wings of dusk-active and shade-inhabiting Carystoides escalantei butterflies.

Ge D, Wu G, Yang L, Kim HN, Hallwachs W, Burns JM, Janzen DH, Yang S.

Proc Natl Acad Sci U S A. 2017 Jul 11;114(28):7379-7384. doi: 10.1073/pnas.1701017114. Epub 2017 Jun 26.


Advancing taxonomy and bioinventories with DNA barcodes.

Miller SE, Hausmann A, Hallwachs W, Janzen DH.

Philos Trans R Soc Lond B Biol Sci. 2016 Sep 5;371(1702). pii: 20150339. doi: 10.1098/rstb.2015.0339. Review.


A new species of Phosocephala Townsend, 1908 (Diptera: Tachinidae) from Area de Conservación Guanacaste in northwestern Costa Rica.

Fleming AJ, Wood DM, Smith MA, Janzen DH, Hallwachs W, Dapkey T.

Biodivers Data J. 2016 Apr 25;(4):e7863. doi: 10.3897/BDJ.4.e7863. eCollection 2016.


Nine new species of Itaplectops (Diptera: Tachinidae) reared from caterpillars in Area de Conservación Guanacaste, northwestern Costa Rica, with a key to Itaplectops species.

Fleming AJ, Wood DM, Smith MA, Janzen DH, Hallwachs W.

Biodivers Data J. 2015 Dec 23;(3):e4596. doi: 10.3897/BDJ.3.e4596. eCollection 2015.


Description of a new genus for Euptychia hilara (C. Felder & R. Felder, 1867) (Lepidoptera: Nymphalidae: Satyrinae).

Nakahara S, Janzen DH, Hallwachs W, Espeland M.

Zootaxa. 2015 Sep 4;4012(3):525-41. doi: 10.11646/zootaxa.4012.3.7.


Revision of Aphelagathis (Hymenoptera, Braconidae, Agathidinae, Agathidini).

Sharkey MJ, Chapman EG, Janzen DH, Hallwachs W, Smith MA.

Zootaxa. 2015 Aug 13;4000(1):73-89. doi: 10.11646/zootaxa.4000.1.3.


Three new species of Trigonospila Pokorny (Diptera: Tachinidae), from Area de Conservación Guanacaste, northwestern Costa Rica, with a key for their identification.

Fleming AJ, Wood DM, Janzen DH, Hallwachs W, Smith MA.

Biodivers Data J. 2015 Aug 11;(3):e4595. doi: 10.3897/BDJ.3.e4595. eCollection 2015. Erratum in: Biodivers Data J. 2015;(3):e6459.


Massively parallel multiplex DNA sequencing for specimen identification using an Illumina MiSeq platform.

Shokralla S, Porter TM, Gibson JF, Dobosz R, Janzen DH, Hallwachs W, Golding GB, Hajibabaei M.

Sci Rep. 2015 Apr 17;5:9687. doi: 10.1038/srep09687.


Integrative taxonomy of New World Euplectrus Westwood (Hymenoptera, Eulophidae), with focus on 55 new species from Area de Conservación Guanacaste, northwestern Costa Rica.

Hansson C, Smith MA, Janzen DH, Hallwachs W.

Zookeys. 2015 Mar 10;(485):1-236. doi: 10.3897/zookeys.485.9124. eCollection 2015.


First record of the genus Venanus (Hymenoptera: Braconidae: Microgastrinae) in Mesoamerica, with the description of two new species from Costa Rica.

Fernandez-Triana JL, Whitfield JB, Smith MA, Hallwachs W, Janzen DH.

Biodivers Data J. 2014 Nov 13;(2):e4167. doi: 10.3897/BDJ.2.e4167. eCollection 2014.


Revision of the genus Pseudapanteles (Hymenoptera, Braconidae, Microgastrinae), with emphasis on the species in Area de Conservación Guanacaste, northwestern Costa Rica.

Fernández-Triana JL, Janzen DH, Hallwachs W, Whitfield JB, Smith MA, Kula R.

Zookeys. 2014 Oct 14;(446):1-82. doi: 10.3897/zookeys.446.8195. eCollection 2014.


Revision of the New World species of Houghia Coquillett (Diptera, Tachinidae) reared from caterpillars in Area de Conservación Guanacaste, Costa Rica.

Fleming AJ, Wood DM, Smith MA, Hallwachs W, Janzen DH.

Zootaxa. 2014 Sep 2;3858:1-90. doi: 10.11646/zootaxa.3858.1.1.


Four new species of Symmerista Hübner, 1816 (Notodontidae, Nystaleinae) from Costa Rica.

Chacón IA, Janzen DH, Hallwachs W.

Zookeys. 2014 Jun 27;(421):39-63. doi: 10.3897/zookeys.421.6342. eCollection 2014.


Simultaneous assessment of the macrobiome and microbiome in a bulk sample of tropical arthropods through DNA metasystematics.

Gibson J, Shokralla S, Porter TM, King I, van Konynenburg S, Janzen DH, Hallwachs W, Hajibabaei M.

Proc Natl Acad Sci U S A. 2014 Jun 3;111(22):8007-12. doi: 10.1073/pnas.1406468111. Epub 2014 May 7.


Next-generation DNA barcoding: using next-generation sequencing to enhance and accelerate DNA barcode capture from single specimens.

Shokralla S, Gibson JF, Nikbakht H, Janzen DH, Hallwachs W, Hajibabaei M.

Mol Ecol Resour. 2014 Sep;14(5):892-901. doi: 10.1111/1755-0998.12236. Epub 2014 Feb 19.


Review of Apanteles sensu stricto (Hymenoptera, Braconidae, Microgastrinae) from Area de Conservación Guanacaste, northwestern Costa Rica, with keys to all described species from Mesoamerica.

Fernández-Triana JL, Whitfield JB, Rodriguez JJ, Smith MA, Janzen DH, Hallwachs WD, Hajibabaei M, Burns JM, Solis MA, Brown J, Cardinal S, Goulet H, Hebert PD.

Zookeys. 2014 Feb 24;(383):1-565. doi: 10.3897/zookeys.383.6418. eCollection 2014.


A food plant specialist in Sparganothini: A new genus and species from Costa Rica (Lepidoptera, Tortricidae).

Brown JW, Janzen DH, Hallwachs W.

Zookeys. 2013 May 21;(303):53-63. doi: 10.3897/zookeys.303.5230. Print 2013.


Three new species in the genus Wilkinsonellus (Braconidae, Microgastrinae) from the Neotropics, and the first host record for the genus.

Arias-Penna DC, Whitfield JB, Janzen DH, Hallwachs W.

Zookeys. 2013 May 20;(302):79-95. doi: 10.3897/zookeys.302.4962. Print 2013.


Description of a new species and subspecies of Idalus Walker from Costa Rica, Honduras and Guatemala (Lepidoptera, Erebidae, Arctiinae, Arctiini).

Espinoza BA, Janzen DH, Winnie Hallwachs, J Bolling Sullivan.

Zookeys. 2013 Feb 6;(264):71-84. doi: 10.3897/zookeys.264.4403. Print 2013.


Cryptic species within cryptic moths: new species of Dunama Schaus (Notodontidae, Nystaleinae) in Costa Rica.

Chacón IA, Janzen DH, Hallwachs W, J Bolling Sullivan, Hajibabaei M.

Zookeys. 2013 Feb 6;(264):11-45. doi: 10.3897/zookeys.264.4440. Print 2013.


Mariapanteles (Hymenoptera, Braconidae), a new genus of Neotropical microgastrine parasitoid wasp discovered through biodiversity inventory.

Whitfield JB, Fernández-Triana JL, Janzen DH, Hallwachs W, Smith MA, Cardinal S.

Zookeys. 2012;(208):61-80. doi: 10.3897/zookeys.208.3326. Epub 2012 Jul 17.


Wolbachia and DNA barcoding insects: patterns, potential, and problems.

Smith MA, Bertrand C, Crosby K, Eveleigh ES, Fernandez-Triana J, Fisher BL, Gibbs J, Hajibabaei M, Hallwachs W, Hind K, Hrcek J, Huang DW, Janda M, Janzen DH, Li Y, Miller SE, Packer L, Quicke D, Ratnasingham S, Rodriguez J, Rougerie R, Shaw MR, Sheffield C, Stahlhut JK, Steinke D, Whitfield J, Wood M, Zhou X.

PLoS One. 2012;7(5):e36514. doi: 10.1371/journal.pone.0036514. Epub 2012 May 2.


Utility of the DNA barcoding gene fragment for parasitic wasp phylogeny (Hymenoptera: Ichneumonoidea): data release and new measure of taxonomic congruence.

Quicke DL, Smith MA, Janzen DH, Hallwachs W, Fernandez-Triana J, Laurenne NM, Zaldívar-Riverón A, Shaw MR, Broad GR, Klopfstein S, Shaw SR, Hrcek J, Hebert PD, Miller SE, Rodriguez JJ, Whitfield JB, Sharkey MJ, Sharanowski BJ, Jussila R, Gauld ID, Chesters D, Vogler AP.

Mol Ecol Resour. 2012 Jul;12(4):676-85. doi: 10.1111/j.1755-0998.2012.03143.x. Epub 2012 Apr 9.


Comparison of midgut bacterial diversity in tropical caterpillars (Lepidoptera: Saturniidae) fed on different diets.

Pinto-Tomás AA, Sittenfeld A, Uribe-Lorío L, Chavarría F, Mora M, Janzen DH, Goodman RM, Simon HM.

Environ Entomol. 2011 Oct;40(5):1111-22. doi: 10.1603/EN11083.


Reading the complex skipper butterfly fauna of one tropical place.

Janzen DH, Hallwachs W, Burns JM, Hajibabaei M, Bertrand C, Hebert PD.

PLoS One. 2011;6(8):e19874. doi: 10.1371/journal.pone.0019874. Epub 2011 Aug 16.


Joining inventory by parataxonomists with DNA barcoding of a large complex tropical conserved wildland in northwestern Costa Rica.

Janzen DH, Hallwachs W.

PLoS One. 2011;6(8):e18123. doi: 10.1371/journal.pone.0018123. Epub 2011 Aug 16.


Pyrosequencing for mini-barcoding of fresh and old museum specimens.

Shokralla S, Zhou X, Janzen DH, Hallwachs W, Landry JF, Jacobus LM, Hajibabaei M.

PLoS One. 2011;6(7):e21252. doi: 10.1371/journal.pone.0021252. Epub 2011 Jul 27.


When species matches are unavailable are DNA barcodes correctly assigned to higher taxa? An assessment using sphingid moths.

Wilson JJ, Rougerie R, Schonfeld J, Janzen DH, Hallwachs W, Hajibabaei M, Kitching IJ, Haxaire J, Hebert PD.

BMC Ecol. 2011 Aug 1;11:18. doi: 10.1186/1472-6785-11-18.


Stable structural color patterns displayed on transparent insect wings.

Shevtsova E, Hansson C, Janzen DH, Kjærandsen J.

Proc Natl Acad Sci U S A. 2011 Jan 11;108(2):668-73. doi: 10.1073/pnas.1017393108. Epub 2011 Jan 3.


A tropical horde of counterfeit predator eyes.

Janzen DH, Hallwachs W, Burns JM.

Proc Natl Acad Sci U S A. 2010 Jun 29;107(26):11659-65. doi: 10.1073/pnas.0912122107. Epub 2010 Jun 14.


Climate change and the integrity of science.

Gleick PH, Adams RM, Amasino RM, Anders E, Anderson DJ, Anderson WW, Anselin LE, Arroyo MK, Asfaw B, Ayala FJ, Bax A, Bebbington AJ, Bell G, Bennett MV, Bennetzen JL, Berenbaum MR, Berlin OB, Bjorkman PJ, Blackburn E, Blamont JE, Botchan MR, Boyer JS, Boyle EA, Branton D, Briggs SP, Briggs WR, Brill WJ, Britten RJ, Broecker WS, Brown JH, Brown PO, Brunger AT, Cairns J Jr, Canfield DE, Carpenter SR, Carrington JC, Cashmore AR, Castilla JC, Cazenave A, Chapin FS 3rd, Ciechanover AJ, Clapham DE, Clark WC, Clayton RN, Coe MD, Conwell EM, Cowling EB, Cowling RM, Cox CS, Croteau RB, Crothers DM, Crutzen PJ, Daily GC, Dalrymple GB, Dangl JL, Darst SA, Davies DR, Davis MB, De Camilli PV, Dean C, DeFries RS, Deisenhofer J, Delmer DP, DeLong EF, DeRosier DJ, Diener TO, Dirzo R, Dixon JE, Donoghue MJ, Doolittle RF, Dunne T, Ehrlich PR, Eisenstadt SN, Eisner T, Emanuel KA, Englander SW, Ernst WG, Falkowski PG, Feher G, Ferejohn JA, Fersht A, Fischer EH, Fischer R, Flannery KV, Frank J, Frey PA, Fridovich I, Frieden C, Futuyma DJ, Gardner WR, Garrett CJ, Gilbert W, Goldberg RB, Goodenough WH, Goodman CS, Goodman M, Greengard P, Hake S, Hammel G, Hanson S, Harrison SC, Hart SR, Hartl DL, Haselkorn R, Hawkes K, Hayes JM, Hille B, Hökfelt T, House JS, Hout M, Hunten DM, Izquierdo IA, Jagendorf AT, Janzen DH, Jeanloz R, Jencks CS, Jury WA, Kaback HR, Kailath T, Kay P, Kay SA, Kennedy D, Kerr A, Kessler RC, Khush GS, Kieffer SW, Kirch PV, Kirk K, Kivelson MG, Klinman JP, Klug A, Knopoff L, Kornberg H, Kutzbach JE, Lagarias JC, Lambeck K, Landy A, Langmuir CH, Larkins BA, Le Pichon XT, Lenski RE, Leopold EB, Levin SA, Levitt M, Likens GE, Lippincott-Schwartz J, Lorand L, Lovejoy CO, Lynch M, Mabogunje AL, Malone TF, Manabe S, Marcus J, Massey DS, McWilliams JC, Medina E, Melosh HJ, Meltzer DJ, Michener CD, Miles EL, Mooney HA, Moore PB, Morel FM, Mosley-Thompson ES, Moss B, Munk WH, Myers N, Nair GB, Nathans J, Nester EW, Nicoll RA, Novick RP, O'Connell JF, Olsen PE, Opdyke ND, Oster GF, Ostrom E, Pace NR, Paine RT, Palmiter RD, Pedlosky J, Petsko GA, Pettengill GH, Philander SG, Piperno DR, Pollard TD, Price PB Jr, Reichard PA, Reskin BF, Ricklefs RE, Rivest RL, Roberts JD, Romney AK, Rossmann MG, Russell DW, Rutter WJ, Sabloff JA, Sagdeev RZ, Sahlins MD, Salmond A, Sanes JR, Schekman R, Schellnhuber J, Schindler DW, Schmitt J, Schneider SH, Schramm VL, Sederoff RR, Shatz CJ, Sherman F, Sidman RL, Sieh K, Simons EL, Singer BH, Singer MF, Skyrms B, Sleep NH, Smith BD, Snyder SH, Sokal RR, Spencer CS, Steitz TA, Strier KB, Südhof TC, Taylor SS, Terborgh J, Thomas DH, Thompson LG, Tjian RT, Turner MG, Uyeda S, Valentine JW, Valentine JS, Van Etten JL, van Holde KE, Vaughan M, Verba S, von Hippel PH, Wake DB, Walker A, Walker JE, Watson EB, Watson PJ, Weigel D, Wessler SR, West-Eberhard MJ, White TD, Wilson WJ, Wolfenden RV, Wood JA, Woodwell GM, Wright HE Jr, Wu C, Wunsch C, Zoback ML.

Science. 2010 May 7;328(5979):689-90. doi: 10.1126/science.328.5979.689. No abstract available. Erratum in: Science. 2010 May 14;328(5980):826.


Toward reconstructing the evolution of advanced moths and butterflies (Lepidoptera: Ditrysia): an initial molecular study.

Regier JC, Zwick A, Cummings MP, Kawahara AY, Cho S, Weller S, Roe A, Baixeras J, Brown JW, Parr C, Davis DR, Epstein M, Hallwachs W, Hausmann A, Janzen DH, Kitching IJ, Solis MA, Yen SH, Bazinet AL, Mitter C.

BMC Evol Biol. 2009 Dec 2;9:280. doi: 10.1186/1471-2148-9-280.


A key to new world distatrix mason (Hymenoptera: Braconidae), with descriptions of six new reared neotropical species.

Grinter CC, Whitfield JB, Connahs H, Dyer LA, Hallwachs W, Janzen DH.

J Insect Sci. 2009;9:29. doi: 10.1673/031.009.2901.

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