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Ammopelmatus
Jerusalem crickets, potato bugs, North American Jerusalem Crickets
Ammopelmatus is a genus of large, flightless crickets in the family Stenopelmatidae, commonly known as Jerusalem crickets or potato bugs. The genus was erected by Tinkham in 1965 and underwent massive taxonomic revision in 2025, expanding from 12 recognized species to 117 valid species across the western United States and northwestern Mexico. These insects are among the largest in western North America, with some adults exceeding 12 grams. The genus exhibits exceptional species diversity concentrated in Southern and Central California, with most species having limited geographic distributions.
Orthoptera Stenopelmatidae Jerusalem-cricket potato-bug flightless nocturnal drumming-communication western-North-America California-biodiversity 2025-taxonomic-revision soil-arthropod bird-prey
Ammopelmatus mescaleroensis
Mescalero Jerusalem Cricket
Ammopelmatus mescaleroensis is a species of Jerusalem cricket endemic to the sand dunes of southeastern New Mexico. First described by Tinkham in 1979, it was later found to be conspecific with A. monahansensis, which was synonymized under A. mescaleroensis in a 2024 phylogenomic revision. A neotype has been designated for this species. The species is nocturnal and has been observed in sand dune habitats at night.
endemic nocturnal sand-dune-specialist New-Mexico Jerusalem-cricket Stenopelmatidae
Ammopelmatus monahansensis
Ammopelmatus monahansensis is a species of Jerusalem cricket in the family Stenopelmatidae, described by Stidham & Stidham in 2001. The genus Ammopelmatus comprises sand dune endemic species found in the southwestern United States. These flightless orthopterans are characterized by their large size, fossorial habits, and nocturnal activity patterns. A. monahansensis is one of several described species within this genus that are restricted to specific sand dune systems.
Jerusalem-cricket sand-dune-endemic fossorial nocturnal Orthoptera Stenopelmatidae Texas-endemic Monahans-Sandhills
Ammopelmatus nigrocapitatus
Black-headed Jerusalem Cricket
Ammopelmatus nigrocapitatus is a species of Jerusalem cricket in the family Stenopelmatidae, originally described by Tinkham & Rentz in 1969. It is one of 12 previously named taxa recognized as valid in a comprehensive 2025 revision of the genus. The species is endemic to parts of Southern California and is characterized by its distinctive black head. Like other Ammopelmatus species, it is a large, flightless orthopteran adapted to arid and semi-arid environments.
endemic southern-california flightless fossorial stenopelmatidae orthoptera
Dielis tolteca
Toltec scoliid wasp
Dielis tolteca is a species of scoliid wasp native to western North America and Mesoamerica. The species is known to parasitize scarab beetle grubs, with females hunting underground hosts to provision their offspring. Adults have been observed feeding on flowering plants, particularly mustards (Brassicaceae) and goldenrods (Solidago). The species has been documented in McInnis Canyons National Conservation Area in western Colorado, where it is active as a spring-emerging species.
scoliid-wasp parasitoid scarab-beetle western-Colorado McInnis-Canyons spring-emergence Solidago mustards biological-control Hymenoptera Scoliidae Dielis Campsomerini biodiversity-survey integrated-pest-management melissa-schreiner extension-entomology saussure-1857 toltec-scoliid-wasp riparian Colorado-River flower-visitor nectar-feeding solitary-wasp ground-nesting-parasitoid scarab-grub-parasitoid aculeate apocrita aculeata campsomerinae western-North-America Nearctic Neotropical Mesoamerica Arizona Baja-California Sonora underground-host-hunter external-parasitoid larval-provisioning spring-active insect-biodiversity rare-ecosystem-survey natural-heritage-survey CSU-extension Colorado-State-University agricultural-pest-management tree-fruit wine-grapes row-crops invasive-species-monitoring Japanese-beetle Popillia-japonica corn-earworm Helicoverpa-zea IPM pest-monitoring moth-trapping B3-allele-testing citizen-science Department-of-Agriculture-trapping targeted-larval-treatments 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described-species general-area bonus-points additional-pictures answer-comment couple-days Orthoptera Stenopelmatidae Stenopelmatus North-American Oklahoma fuscus dark Anostostoma genus change-of-heart family old-world morphological-similarities king-cricket head legs antennae postnotum Jerusalem-cricket locality species-short-list variable photograph-10-years-ago Russia-adjacent-country tags Mexico New-Zealand South-Africa Hemiandrus stumpy-hinds pdf-resource Bochus spineyness genicular-lobes conservation-biologist work-in-progress entomologist Nasidius genae cheek lower-genae head-modification mandible-enlargement normal-looking-head female male-without-modifications Libanasidus-vittatus one-spine inner-margin foretibia two-spines thoracic-abdominal-tergites black-posterior-margin Onosandrus-sp dissertation color-variable not-diagnostic eight-genera king-crickets male-Onosandridus-sp couplet-1 tympanum-not-obvious fore-tibia couplet-2 two-spines-inner-margin couplet-3 no-mandible-enlargement ovipositor-not-long couplet-5 no-large-ovipositor male smooth-face not-Bochus Onosandridus key Review-of-southern-African-Anostostomatidae Brettschneider hind-femur-never-armed spines-hooks males-no-head-modification Sam-Heads Orthoptera-expert Illinois-Natural-History-Survey Anostostomatidae genus-Onosandridus-Péringuey two-impressive-spines inner-surface-protibia Bochus-characteristic head-face-tuberculate former-genus specimen-clearly-not Heath Jason correct-genus Heath-first points Peter Chris final-standings Ziad-Khouri Zeroing-in-on-Mammoth-Wasps Scoliid-Wasps Bug-Squad UC-Davis-doctoral-candidate Lynn-Kimsey major-professor distinguished-professor seminar UC-Davis-Department-of-Entomology-and-Nematology Wednesday-March-30 spring-quarter-seminars 4:10-p.m.Pacific-Daylight-Time 122-Briggs-Hall Zoom unique-work modern-systematic-treatment genus-species-level-taxonomy-mess modern-classical-techniques taxonomic-order evolution-discovered Bohart-Museum 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Campsomerini-s.s.Late-Cretaceous posterior-means crown-ages Paleogene age-95%-HPD-intervals K-Pg-boundary fossils-less-certain-placement older-ages stem-ages Nearctic-scoliid-clades Beringia-dispersal Oligocene-later-Eocene foundation-future-research scoliid-wasp-evolution-biogeography first-genome-scale-data model-based-methods precision-dating-analyses paucity-well-preserved-fossils reliably-attributable crown-group higher-level-taxonomy-dire-need-revision taxonomic-changes-predicated datasets-extend-geographic-taxonomic-sampling Part-II phylogenetic-inference exonic-DNA-sequences multiple-codings nucleotides amino-acids codons empirical-studies data-type-choice model-choice less-expected-violation inaccurate-inference assessing-phylogenetic-model-adequacy inference-reliability-indication simulation-based-approach detect-model-inadequacy phylogenetic-posterior-prediction data-coding-variation simulated-data-multiple-models codon-models process-heterogeneity-lineages selection-heterogeneity-sites codon-usage-selection inference-posterior-predictive-checks nucleotide-amino-acid-models GTR-family significant-differences amino-acid-nucleotide-treatments detect-model-violation magnitude-error-estimate-interest-similar corroborate-other-studies tree-length-estimation-error topology-reconstruction-error not-always-correlated amino-acid-models more-accurate-topologies tree-length-errors-greater nucleotide-models branch-heterogeneous-codon-models magnitude-direction data-coding-dependence data-generating-process-properties posterior-predictive-checks-data-filtering practical-effect-size-thresholds low-inference-reliability established-separately amino-acid-nucleotide-data caution-advised careful-model-selection data-coding-careful-selection accurate-tree-length-inference-important 2012-graduate-program doctorate-entomology dissertation-research phylogenetics-evolution-taxonomy-Scolliidae bachelor's-degree-biology 2012 Notre-Dame-University-Louaize-NDU 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clavatus-Aeropedellus collare-Spharagemon coloradus-Amphitornus complanatipes-Melanoplus confusus-Melanoplus conspersa-Arphia conspersa-Chloealtis corallipes-Xanthippus coronata-Trachyrhachys crenulata-Cordillacris curtipennis-Chorthippus cyaneipennis-Trimerotropis cyaneus-Leprus dawsonii-Melanoplus delicatula-Psoloessa deorum-Ageneotettix differentialis-Melanoplus discolor-Melanoplus dodgei-Melanoplus elliotti-Aulocara enigma-Oedaloenotus equale-Spharagemon fasciatus-Melanoplus femoratum-Aulocara femurrubrum-Melanoplus flavidus-Melanoplus foedus-Melanoplus fontana-Trimerotropis formosus-Tropidolophus fratercula-Trimerotropis fusiformis-Ceuthophilus gladstoni-Melanoplus glaucipes-Melanoplus gracile-Stethophyma gracilis-Trimerotropis haldemanii-Pardalophora haydeni-Derotmema hirtipes-Acrolophitus humile-Spharagemon inconspicua-Trimerotropis infantilis-Melanoplus keeleri-Melanoplus kennicotti-Melanoplus kiowa-Trachyrhachys lakinus-Melanoplus latifasciata-Trimerotropis longipennis-Dissosteira magna-Brachystola magnifica-Trimerotropis melanoptera-Trimerotropis montanus-Xanthippus montezuma-Syrbula nebrascensis-Phoetaliotes neglectus-Cratypedes nevadensis-Acrolophitus niveus-Oecanthus nubilum-Boopedon obscura-Opeia occidentalis-Melanoplus occipitalis-Cordillacris ocelote-Hippiscus olivacea-Campylacantha oregonensis-Melanoplus packardii-Melanoplus pallidipennis-Trimerotropis pardalinus-Metator parviceps-Cibolacris pelidna-Orphulella pellucida-Camnula picta-Mermiria pistrinaria-Trimerotropis plattei-Mestobregma ponderosus-Melanoplus pseudonietana-Arphia quadrimaculatum-Phlibostroma quadripunctatus-Oecanthus rabula-Circotettix regalis-Melanoplus robusta-Udeopsylla robustus-Leprus rufa-Heliaula sanguinipes-Melanoplus simplex-Anabrus simplex-Arphia simplex-Eritettix sordidus-Encoptolophus sparsa-Trimerotropis speciosa-Orphulella speciosus-Hesperotettix splendidus-Melanoplus spretus-Melanoplus spurcata-Dissosteira subgracilis-Encoptolophus sulcifrons-Conozoa tenuipennis-Aeoloplides texana-Conozoa texana-Mermiria texana-Psoloessa tolteca-Trimerotropis trifasciatus-Hadrotettix tristis-Melanoplus turnbulli-Aeoloplides utahensis-Ceuthophilus verruculatus-Trimerotropis virgata-Paropomala viridifasciata-Chortophaga viridis-Hesperotettix wyomingensis-Paropomala xanthoptera-Arphia yarrowii-Melanoplus not-true-grasshoppers Acrididae discussed-manual confused-with-grasshoppers top-of-page back-to-contents navigation-main-page learn-more biology distribution-maps fact-sheets key-to-stages grasshopper-development grasshopper-names-common-scientific grasshopper-names-species-genus grasshopper-names-genus-species Acrolophitus-hirtipes Acrolophitus-nevadensis Aeoloplides-chenopodii Aeoloplides-tenuipennis Aeoloplides-tumbulli Aeropedellus-clavatus Ageneotettix-deorum Amphitomus-coloradus Anabrus-simplex Arphia-conspersa Arphia-pseudonietana Arphia-simplex Arphia-xanthoptera Aulocara-elliotti Aulocara-femoratum Boopedon-nubilum Brachystola-magna Camnula-pellucida Campylacantha-olivacea Ceuthophilus-alpinus Ceuthophilus-fusiformis Ceuthophilus-utahensis Chloealtis-abdominalis Chloealtis-conspersa Chorthippus-curtipennis Chortophaga-viridifasciata Cibolacris-parviceps Circotettix-carlinianus Circotettix-rabula Conozoa-suicifrons Conozoa-texana Cordillacris-crenulata Cordillacris-occipitalis Cratypedes-neglectus Dactylotum-bicolor Daihnia-brevipes Derotmema-haydeni Dissosteira-carolina Dissosteira-longipennis Dissosteira-spurcata Encoptolophus-sordidus Encoptolophus-subgracilis Eritettix-simplex Gryllus-spp Hadrotettix-trifasciatus Heliaula-rufa Hesperotettix-speciosus Hesperotettix-viridis Hippiscus-ocelote Hippopedon-capito Hypochlora-alba Leprus-cyaneus Leprus-robustus Melanoplus-alpinus Melanoplus-angustipennis Melanoplus-arizonae Melanoplus-bispinosus Melanoplus-bivittatus Melanoplus-borealis Melanoplus-bowditchi Melanoplus-bruneri Melanoplus-complanatipes Melanoplus-confusus Melanoplus-dawsonii Melanoplus-differentialis Melanoplus-discolor Melanoplus-dodgei Melanoplus-fasciatus Melanoplus-femurrubrum Melanoplus-flavidus Melanoplus-foedus Melanoplus-gladstoni Melanoplus-glaucipes Melanoplus-infantilis Melanoplus-keeleri Melanoplus-kennicotti Melanoplus-lakinus Melanoplus-occidentalis Melanoplus-oregonensis Melanoplus-packardii Melanoplus-ponderosus Melanoplus-regalis Melanoplus-sanguinipes Melanoplus-splendidus Melanoplus-spretus Melanoplus-tristis Melanoplus-yarrowii Mermiria-bivittata Mermiria-picta Mermiria-texana Mestobregma-plattei Metator-pardalinus Oecanthus-argentinus Oecanthus-californicus Oecanthus-niveus Oecanthus-quadripunctatus Oedaloenotus-enigma Opeia-obscura Orphulella-pelidna Orphulella-speciosa Pardalophora-apiculata Pardalophora-haidemanii Paropomala-virgata Paropomala-wyomingensis Phlibostroma-quadrimaculatum Phoetaliotes-nebrascensis Pseudopomala-brachyptera Psoloessa-delicatula Psoloessa-texana Schistocerca-alutacea Spharagemon-bolli Spharagemon-collare Spharagemon-equale 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