Department of Entomology

Persistent link for this communityhttps://hdl.handle.net/11299/5450

Browse

Browsing Department of Entomology by Title

Now showing 1 - 20 of 109
  • Thumbnail Image
    Item
    Butterfly Gardening
    (Extension, 2020) Krischik, Vera
    Butterfly gardening retrofits landscapes with nectar and larval host plants for butterflies. Good butterfly habitat provides plants for all life stages: host plant leaves (for egg laying and caterpillar food), flower nectar (food for adult butterflies) and protected areas (to mate, feed, pupate, rest, overwinter and hide from predation). Development, commercial agriculture, pesticide use, and climate change is destroying natural wildlife habitat. Wherever possible, we need to encourage habitat restoration to maintain butterfly populations.
  • Thumbnail Image
    Item
    The caddisfly genus Nectopsyche: new gemma group species from Costa Rica and the Neotropics (Trichoptera:Leptoceridae)
    (University of Chicago Press, 1995) Holzenthal, Ralph W.
    Generic-level diagnoses are provided for adult males, females, and larvae of the longhorned caddisfly genus Nectopsyche Miiller (Trichoptera:Leptoceridae). In addition, seven new Costa Rican species in the gemma species group are described and illustrated: N. exophthalma n. sp., N. monticola n. sp., N. onyx n. sp., N. ortizi n. sp., (also known from Argentina, Brazil, Guyana, Mexico, Panama, Peru, Surinam, and Venezuela), N. tapanti n. sp., N. tuanis n. sp., and N. utleyorum n. sp. The new species are compared with two previously described gemma group species also known from Costa Rica, N. argentata Flint and N. gemmoides Flint, and these, too, are diagnosed and illustrated.
  • Thumbnail Image
    Item
    The caddisfly genus Protoptila in Costa Rica (Trichoptera: Glossosomatidae)
    (Magnolia Press, 2006) Holzenthal, Ralph W.; Blahnik, Roger J.
    Nineteen species of Protoptila known from Costa Rica are revised to include 11 previously described species (P. bicornuta Flint 1963, P. boruca Flint 1974, P. burica Flint 1974, P. cana Flint 1974, P. ixtala Mosely 1937, P. laterospina Flint 1967, P. orotina orotina Flint 1974, P. spirifera Flint 1974, P. talamanca Flint 1974, P. tica Bueno-Soria 1984, and P. tojana Mosely 1954) and 8 new species (P. altura, P. bribri, P. chitaria, P. cristula, P. kjeri, P. jolandae, P. strepsicera, and P. trichoglossa). Illustrations, diagnoses, descriptions, and distribution records are provided for all species.
  • Thumbnail Image
    Item
    The caddisfly genus Triaenodes in Neotropics (Trichoptera: Leptoceridae)
    (Magnolia Press, 2004) Holzenthal, Ralph W.; Andersen, Trond
    The genus Triaenodes as it occurs in the Neotropics is diagnosed and discussed in the context of the world fauna. Twenty new species are described and illustrated: T. acanthus (Mexico), T. chirripo (Costa Rica), T. clauseni (Costa Rica, Nicaragua, Panama), T. cuyotenango (Guatemala), T. flintorum (Mexico), T. guadaloupe (Panama), T. hodgesi (Ecuador), T. hornitos (Panama), T. kilambe (Nicaragua), T. mexicanus (Mexico), T. moncho (Costa Rica), T. morai (Costa Rica, Nicaragua), T. nicaraguensis (Nicaragua), T. oaxacensis (Mexico), T. tajo (Costa Rica), T. talamanca (Costa Rica), T. tapanti (Costa Rica, Panama), T. tico (Costa Rica, Panama), T. tuxtlensis (Mexico), and T. woldai (Panama). In addition, 4 previously described species are redescribed and figured: T. abruptus Flint 1991 (Colombia), T. anomalus Flint 1967 (Nicaragua, Mexico), T. delicatus Navás 1924 (Costa Rica, Panama), and T. peruanus Flint & Reyes 1991 (Colombia, Ecuador, Peru). The status of Triaenodes columbicus Ulmer 1909, is discussed. The larval and pupal stages of a Costa Rican species and the females of 9 species are described, representing the first descriptions of these life history stages for Neotropical Triaenodes. The genus Ylodes Milne is returned to synonymy with Triaenodes, as a subgenus. A key to the males of Neotropical Triaenodes is provided.
  • Thumbnail Image
    Item
    Catalog of the Neotropical Trichoptera (Caddisflies)
    (Pensoft Publishers, 2017) Holzenthal, Ralph W.; Calor, Adolfo R.
    The Neotropical caddisfly (Trichoptera) fauna is cataloged from a review of over 1,000 literature citations through 2015 (partial 2016) to include 3,262 currently recognized, valid species-group names in 25 families and 155 extant genera. Fourteen subspecies are included in the total as well as 35 fossil species and 1 fossil genus. The region covered includes all of Mexico, Central America, the Caribbean, and South America. Genus-group and species-group synonyms are listed. For each nominal species, information on the type locality, type depository, sex of type, distribution by country, and other pertinent taxonomic or biological information is included. Summary information on taxonomy, phylogeny, distribution, immature stages, and biology are provided for each family and genus where known. An extensive index to all nominal taxa is included to facilitate use of the catalog. The glossosomatid species Mexitrichia usseglioi Rueda Martín & Gibon, is transferred to Mortoniella comb. n.
  • Thumbnail Image
    Item
    Checklist of the Trichoptera (Insecta) of Brazil I
    (2004) Paprocki, Henrique; Holzenthal, Ralph W.; Blahnik, Roger J.
    We present here a list of Trichoptera species recorded in the literature from Brazil as of September 2003. The total number of species recorded for Brazil is 378. The most diverse family is Hydropsychidae with 103 species; the second most diverse is Hydroptilidae with 50 species, followed by Leptoceridae and Philopotamidae with 41 each. Distributions by state and additional literature relevant to Brazilian Trichoptera are also presented.
  • Thumbnail Image
    Item
    Chimarra of Sabah and Sarawak, northern Borneo (Trichoptera: Philopotamidae)
    (Brill Academic Publishers, 2009) Blahnik, Roger J.; Holzenthal, Ralph W.; Huisman, Jolanda
    Thirty new species of Chimarra Stephens (Trichoptera: Philopotamidae) from the Malaysian part of Borneo (Sabah and Sarawak) are described, and eight previously described species are redescribed (Chimarra dulitensis Kimmins, 1955 and C. demeter Malicky, 2000, originally described from the Malaysian part of Borneo; and also C. phlegyas Malicky, 2008; C. polyneikes Malicky, 2008; C. prokrustes Malicky, 2008; C. terramater Malicky, 2008; C. thaumas Malicky, 2008; and C. tityos Malicky, 2008, originally described from the Indonesian part of Borneo, but now also recorded from the Malaysian part of Borneo). New species described include: Chimarra antheae, C. caduca, C. chanchuluni, C. cuspidata, C. cygnus, C. danumensis, C. dejongi, C. denticula, C. devogeli, C. drepane, C. fuilianae, C. gyrospina, C. jannekae, C. karlijnae, C. kinabaluensis, C. lambi, C. liwaguensis, C. noloyan, C. noohi, C. phillipsae, C. physanoton, C. preapicalis, C. scolops, C. silausilau, C. sinitorum, C. stenodactylus, C. vantoli, C. vanwelzeni, C. ventritropis, and C. xiphosella. Two major groups, the Chimarra tsudai group and the Chimarra digitata group are recognized, based on characters of the male genitalia and wing venation, to include most of these species.
  • Thumbnail Image
    Item
    Contulma paluguillensis (Trichoptera:Anomalopsychidae), a new caddisfly from the high Andes of Ecuador, and its natural history
    (University of Chicago Press, 2012) Holzenthal, Ralph W.; Rios-Touma, Blanca
    Adults and larvae of a new species of Contulma Flint (Trichoptera:Anomalopsychidae) are described from Ecuador. The new species is similar to Contulma papallacta Holzenthal and Flint, but differs in having shorter, less spatulate dorsolateral processes and shorter setose lateral processes of segment IX in the male genitalia. Monthly Hess, sticky trap, and emergence-trap collections indicated that the new species is uncommon, probably univoltine, but with continuous larval growth and extended adult emergence, and has algivorous larvae.
  • Thumbnail Image
    Item
    Department of Entomology, Fisheries and Wildlife, 1888-1974
    (University of Minnesota, 1976) Hodson, A. C. (Alexander Carlton), 1906-1996
    A chronological and somewhat anecdotal history of the Department of Entomology, Fisheries and Wildlife written by A. C. Hodson, who was Head of the Department from 1960-1974.
  • Thumbnail Image
    Item
    Diadegma rearing flowchart
    (2004) Lee, Jana C.
  • Thumbnail Image
    Item
    Digital Illustration of Insects
    (2008) Holzenthal, Ralph W.
  • Thumbnail Image
    Item
    Diversity and distribution of the Caddisflies (Insecta: Trichoptera) of Ecuador
    (2017) Ríos-Touma, Blanca; Holzenthal, Ralph W.; Huisman, Jolanda; Thomson, Robin; Rázuri-Gonzales, Ernesto
    Background. Aquatic insects and other freshwater animals are some of the most threatened forms of life on Earth. Caddisflies (Trichoptera) are highly biodiverse in the Neotropics and occupy a wide variety of freshwater habitats. In Andean countries, including Ecuador, knowledge of the aquatic biota is limited, and there is a great need for baseline data on the species found in these countries. Here we present the first list of Trichoptera known from Ecuador, a country that harbors two global biodiversity ‘‘hotspots.’’ Methods.We conducted a literature review of species previously reported from Ecuador and supplemented these data with material we collected during five recent field inventories from about 40 localities spanning both hotspots. Using species presence data for each Ecuadorian province, we calculated the CHAO 2 species estimator to obtain the minimum species richness for the country. Results. We recorded 310 species, including 48 new records from our own field inventories for the country. CHAO 2 calculations showed that only 54% of the species have been found. Hydroptilidae and Hydropsychidae were the most species rich families. We report the family Xiphocentronidae for the first time from Ecuador as well as several new records of genera from different families. Discussion. As in the neighboring Andean countries of Colombia and Peru, it is common to find undescribed species of caddisflies. There are vast areas of Ecuador and the northern Andes that are completely unexplored, and we expect that hundreds of new species are yet to be discovered.
  • Thumbnail Image
    Item
    DNA barcode data confirm new species and reveal cryptic diversity in Chilean Smicridea (Smicridea) (Trichoptera:Hydropsychidae)
    (The North American Benthological Society, 2010) Pauls, Steffen U.; Blahnik, Roger J.; Zhou, Xin; Wardwell, C. Taylor; Holzenthal, Ralph W.
    Mitochondrial deoxyribonucleic acid (mtDNA) sequence data have been both heralded and scrutinized for their ability or lack thereof to discriminate among species for identification (DNA barcoding) or description (DNA taxonomy). Few studies have systematically examined the ability of mtDNA from the DNA barcode region (658 base pair fragment of the 59 terminus of the mitochondrial cytochrome c oxidase I gene) to distinguish species based on range-wide sampling of specimens from closely related species. Here we examined the utility of DNA barcode data for delimiting species, associating life stages, and as a potential genetic marker for phylogeographic studies by analyzing a rangewide sample of closely related Chilean representatives of the caddisfly genus Smicridea subgenus Smicridea. Our data revealed the existence of 7 deeply diverged, previously unrecognized lineages and confirmed the existence of 2 new species: Smicridea (S.) patinae, new species and Smicridea (S.) lourditae, new species. Based on our current taxonomic evaluation, we considered the other 5 lineages to be cryptic species. The DNA barcode data proved useful in delimiting species within Chilean Smicridea (Smicridea) and were suitable for life-stage associations. The data also contained sufficient intraspecific variation to make the DNA barcode a candidate locus for widespread application in phylogeographic studies.
  • Thumbnail Image
    Item
    Entomology Department Newsletter 2014
    (2014) University of Minnesota Entomology Department
  • Thumbnail Image
    Item
    Entomology Department Newsletter, 2011
    (University of Minnesota: Department of Entomology, 2011)
  • Thumbnail Image
    Item
    Entomology Department Newsletter, 2013
    (2014-04-11) University of Minnesota, Department of Entomology
  • Thumbnail Image
    Item
    Entomology Department Newsletter, 2015
    (2015) University of Minnesota Entomology
  • Thumbnail Image
    Item
    Entomology Department Newsletter, 2016-17
    (2017) University of Minnesota Entomology Department
  • Thumbnail Image
    Item
    Entomology Newsletter 2012
    (2012) University of Minnesota Entomology Department
  • Thumbnail Image
    Item
    Entomology Newsletter December 1942
    (1942-12-15) University of Minnesota: Department of Entomology