Mexico
Guides
Retinia picicolana
Retinia picicolana is a small moth species in the family Tortricidae, first described from Mexico by Harrison G. Dyar in 1906. It belongs to a genus whose larvae are predominantly associated with coniferous trees, particularly pines. The species remains poorly documented in published literature, with most available information derived from taxonomic databases rather than ecological studies.
Reuteroscopus nicholi
Reuteroscopus nicholi is a species of plant bug in the family Miridae, first described by Knight in 1930. The genus Reuteroscopus is known for distinctive, often ornate species that are typical visitors to blacklights. This species is found in the southwestern United States and Mexico. Like other mirids, it is a true bug with piercing-sucking mouthparts.
Rhadine perlevis
Rhadine perlevis is a ground beetle in the family Carabidae, described by Casey in 1913. The species is known from Mexico and the southwestern United States. It belongs to a genus containing several cave-dwelling species, though R. perlevis itself is not documented as a cave obligate. The genus Rhadine includes federally endangered species such as R. exilis and R. infernalis, which are restricted to cave systems in central Texas and depend on cave crickets as a food source.
Rhetenor texanus
Rhetenor texanus is a species of jumping spider in the family Salticidae, first described by Gertsch in 1936. It is one of the few species in the small genus Rhetenor. The species has been documented in Texas and Veracruz, Mexico, with limited observational records overall.
Rhipidandrus peninsularis
Southwestern Rhipidandrus
Rhipidandrus peninsularis is a species of darkling beetle (family Tenebrionidae) described by George Henry Horn in 1894. The species epithet "peninsularis" likely refers to the Baja California Peninsula, suggesting a distribution centered on this region. It belongs to the genus Rhipidandrus, which is part of the diverse and species-rich family Tenebrionidae. Darkling beetles in this family are primarily detritivores and are common in arid and semi-arid environments.
Rhodoleptus femoratus
Rhodoleptus femoratus is a species of longhorn beetle in the family Cerambycidae, described by Schaeffer in 1909. It belongs to the tribe Trachyderini, a group of robust, often brightly colored cerambycids. The genus Rhodoleptus is small and primarily distributed in North America. This species is rarely encountered in entomological literature and appears to have limited published biological information.
Rhopalophora angustata
Narrow-necked Rhopalophora
Rhopalophora angustata is a species of longhorned beetle in the family Cerambycidae, described by Schaeffer in 1905. It belongs to the tribe Rhopalophorini, a group of slender, diurnal beetles frequently found on flowers and exhibiting group mimicry resembling small wasps. The species occurs in southwestern North America and Mexico.
Rhopalophora prorubra
Rhopalophora prorubra is a species of longhorn beetle in the family Cerambycidae, described by Knull in 1944. It belongs to the tribe Rhopalophorini, a group characterized by club-shaped legs and frequent black-and-red coloration patterns. The species occurs in North America and Mexico. Like other members of its tribe, it is likely diurnal and associated with flowers, though specific behavioral observations for this species remain unrecorded.
Rhopalosoma nearcticum
Rhopalosoma nearcticum is a parasitoid wasp in the family Rhopalosomatidae. Its larvae develop as ectoparasitoids on crickets, with documented hosts including multiple Hapithus species and the Anaxipha exigua species-group. The species is found in the Americas from the United States to Brazil, though phylogenetic studies suggest at least two genetically distinct Rhopalosoma clades exist in America north of Mexico.
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Rhyssomatus is a genus of true weevils (Curculionidae) containing at least 180 described species. The genus includes significant agricultural pests, particularly of soybean and other leguminous crops. Several species have been intensively studied due to their economic impact, including R. nigerrimus (Mexican soybean weevil), R. subtilis (black soybean weevil in Argentina), and R. lineaticollis (milkweed stem weevil in North America). Species exhibit diverse life histories ranging from monophagous specialists to oligophagous generalists on legumes.
Rhyssomatus suspected-new
A suspected new species in the weevil genus Rhyssomatus, family Curculionidae. The genus Rhyssomatus contains several economically significant agricultural pests, most notably R. subtilis (the "black weevil" or "picudo negro") which is a major pest of soybean in Tucumán Province, Argentina, and R. nigerrimus, the soybean weevil of Mexico. Members of this genus are characterized by their association with leguminous crops, particularly soybean and dry beans, with larvae typically developing within pods or stems and adults feeding on foliage. The suspected-new designation indicates this taxon has been observed but not yet formally described or fully characterized.
Romalea
Horse Lubbers, Lubber Grasshoppers
Romalea is a genus of large, flightless lubber grasshoppers in the family Romaleidae. Traditionally containing a single species, R. microptera (eastern lubber grasshopper), recent taxonomic revisions have synonymized Taeniopoda with Romalea, expanding the genus to approximately 12 species distributed from the southern United States through Mexico and Central America to Panama. These grasshoppers are among the largest in North America, characterized by aposematic coloration, chemical defenses, and reduced wings that render them incapable of flight.
Rothschildia lebeau
Lebeau's Silk Moth, Forbes Moth
Rothschildia lebeau is a giant silkmoth in the family Saturniidae, distributed from the Lower Rio Grande Valley through eastern Mexico to Brazil. Adults are short-lived and do not feed, relying on fat reserves accumulated during larval development. The species exhibits a life history tradeoff between larval survival and adult body size based on host plant quality, with larger males showing higher mating success.
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n-accessopen-sourceFAIR-datafindableaccessibleinteroperablereusabledata-management-planmetadataprovenancequality-assurancequality-controlvalidationverificationuncertainty-quantificationerror-propagationsensitivity-analysisscenario-analysisMonte-Carlo-simulationBayesian-belief-networkinfluence-diagramdecision-treemulti-criteria-decision-analysiscost-benefit-analysiscost-effectiveness-analysismulti-attribute-utility-theorygame-theorymechanism-designincentive-compatibilityrevelation-principlesocial-choice-theoryvoting-theoryfair-divisioninstitutional-designpolicy-designgovernance-designarchitecturepolycentric-governanceadaptive-governancecollaborative-governancenetwork-governancehierarchical-governancemarket-governancecommunity-governancehybrid-governancemeta-governancesteeringrowingregulatory-stateenabling-statepartner-stateentrepreneurial-stateinnovation-statestrategic-statedevelopmental-statewelfare-stategreen-statesustainable-stateresilient-statesmart-statedigital-stateplatform-statealgorithmic-statesurveillance-stateauthoritarian-statedemocratic-statedeliberative-democracyparticipatory-democracydirect-democracyrepresentative-democracyliberal-democracysocial-democracygreen-democracyecological-democracybiocracyecofascismdeep-ecologysocial-ecologyecofeminismenvironmental-justiceclimate-justiceintergenerational-justiceintragenerational-justicespatial-justiceterritorial-justicerecognition-justiceprocedural-justicedistributive-justicerestorative-justicetransformative-justicereparative-justicetransitional-justiceecological-justicespecies-justicemultispecies-justicemore-than-human-justiceanthropocenecapitaloceneplantationocenechthulucenesymbiocenegood-anthropocenebad-anthropocenegreat-accelerationgreat-divergencegreat-convergencegreat-transformationgreat-decouplinggreat-disruptiongreat-moderationgreat-recessiongreat-depressiongreat-wargreat-faminegreat-migrationgreat-replacementgreat-resetgreat-refusalgreat-enrichmentgreat-levelinggreat-compressionRothschildia lebeau forbesi
Forbes' Silk Moth, Forbes Moth
Rothschildia lebeau forbesi, commonly known as Forbes' Silk Moth, is a subspecies of giant silkmoth in the family Saturniidae. It ranges from the Lower Rio Grande Valley through eastern Mexico to Brazil. Adults are frequently mistaken for the Atlas Moth due to distinctive transparent "windows" in their wings that lack scales. Like other giant silkmoths, adults do not feed and live only a few days, surviving on fat reserves accumulated during the larval stage.
Rugosana plummeri
Rugosana plummeri is a leafhopper species in the family Cicadellidae, first described by DeLong in 1942. It belongs to the tribe Gyponini, a group of leafhoppers characterized by distinctive morphological features. The species has been documented in Mexico, specifically in the states of Michoacán and Morelos. As with many leafhoppers, detailed biological information remains limited in available literature.
Sagotylus confluens
Sagotylus confluens is a true bug in the family Coreidae (leaf-footed bugs), first described by Say in 1832 as Coreus confluens. The species has been recorded from Mexico and the southwestern United States including Arizona, California, and Florida. A 2021 study in Veracruz, Mexico, documented seven species of parasitoid wasps associated with its eggs, including members of Eupelmidae, Eurytomidae, Encyrtidae, and Scelionidae. The species has been collected from sword bean (Canavalia ensiformis) plants.
Salticus palpalis
Salticus palpalis is a species of jumping spider in the family Salticidae, first described by Banks in 1904. It belongs to a genus known for its excellent vision and active hunting behavior. The species has been recorded in the United States and Mexico.
Scaphytopius speciosus
Scaphytopius speciosus is a species of leafhopper in the family Cicadellidae, originally described by Van Duzee in 1923. It is currently treated as a synonym of Scaphytopius nigricollis. The species has been recorded in the southwestern United States and northwestern Mexico.
Scaptolenus
Rain click beetles
Scaptolenus is a genus of click beetles in the family Elateridae, tribe Cebrionini, commonly known as rain click beetles. The genus includes species distributed in Mexico, with recent descriptions of new taxa from Tamaulipas and Jalisco. Species within the vagans-group are distinguished by morphological characters including antennae structure, aedeagus shape, protibiae, and metacoxal lamina configuration.
Scaralina cristata
Scaralina cristata is a planthopper species in the family Fulgoridae, distinguished by its association with oak habitats at higher elevations. It occurs from Arizona south through the Sierra Madre Occidental in Mexico, overlapping in range with congeners S. aethrinsula and S. metcalfi. Adults are readily attracted to blacklights, facilitating detection and study. The species was formally described in 2024, resolving decades of taxonomic confusion under the misapplied name Alphina glauca.
Sceptobius schmitti
Sceptobius schmitti is a small rove beetle in the subfamily Aleocharinae, tribe Sceptobiini. The genus Sceptobius is known for its myrmecophilous associations—species live in ant colonies. This species has been recorded from the southwestern United States and Mexico.
Schaefferellus arizonensis
Schaefferellus arizonensis is a species of scarab beetle in the subfamily Aphodiinae, described by Schaeffer in 1907. It is native to the southwestern United States and northern Mexico. As a member of the Aphodiinae, it belongs to a group commonly known as dung beetles, though specific ecological details for this species remain poorly documented.
Schinia luxa
Schinia luxa is a noctuid moth native to southwestern North America. The species exhibits variable coloration, ranging from plain white or light gray to individuals with dark gray spotting. Adults are active from August to September, with a wingspan of 26–31 mm. The larvae are specialist feeders on Mentzelia species.
Schistocerca camerata
Schistocerca camerata is a grasshopper species in the genus Schistocerca, described by Scudder in 1899. It belongs to the bird grasshopper group within this large genus, which includes several species capable of density-dependent phase polyphenism. The species is recorded from Mexico and North America. Like other members of Schistocerca, it is likely a large, strong-flying grasshopper, though specific biological details remain poorly documented in the available literature.
Schizocosa mimula
A wolf spider in the family Lycosidae, Schizocosa mimula is a ground-dwelling species found in Mexico and the southwestern United States. Like other members of its genus, it likely exhibits typical lycosid behaviors including active hunting without webs and maternal care of egg sacs. The species was described by Gertsch in 1934 and remains poorly documented in scientific literature.
Schizogenius falli
Schizogenius falli is a species of ground beetle in the family Carabidae, described by Whitehead in 1972. It occurs in Central America and North America, with records from Mexico and the United States. As a member of the genus Schizogenius, it belongs to a group of ground beetles whose specific ecological requirements remain poorly documented. The species is represented by limited observation records in biodiversity databases.
Schizogenius pygmaeus
Schizogenius pygmaeus is a small ground beetle in the family Carabidae, subfamily Scaritinae, described by Van Dyke in 1925. The species belongs to a genus of small, fossorial carabids typically associated with sandy or loose soil habitats. Distribution records indicate occurrence from Mexico through Central America to Colombia.
Scolopocerus
Scolopocerus is a genus of leaf-footed bugs in the family Coreidae, established by Uhler in 1875. The genus contains four described species distributed primarily in the southwestern United States and Mexico. Members of this genus are characterized by the expanded, leaf-like hind tibiae typical of many Coreidae. The genus is placed in the tribe Hypselonotini within the subfamily Coreinae.
Scolops cockerelli
Rhinoceros planthopper
Scolops cockerelli is a small planthopper in the family Dictyopharidae, characterized by a distinctive elongated rostrum that gives it a 'rhinoceros' appearance. The species occurs in arid and semi-arid regions of the southwestern United States and northern Mexico. Like other Scolops species, it feeds on plant sap but is not considered an agricultural pest. Adults are typically straw-colored, brown, or gray with reduced wings in some forms.
Scotobaenus parallelus
Scotobaenus parallelus is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1859. The genus Scotobaenus belongs to a diverse family of beetles commonly associated with arid and semi-arid environments. Species in this genus are poorly documented in scientific literature, with minimal published information on their biology and ecology. The species is known from Mexico based on distribution records.
Scudderia mexicana
Mexican bush katydid
Scudderia mexicana, the Mexican bush katydid, is a phaneropterine katydid in the family Tettigoniidae. Adults measure 30–38 mm in length and possess slender wings. Nymphs are distinguished by a horn located between the antennae. The species has been documented feeding on leaves, including those of big-leaf mahogany (Swietenia macrophylla).
Sebaga ocampi
Sebaga ocampi is a small rove beetle (family Staphylinidae) described by Orlando Park in 1945. It belongs to the subfamily Pselaphinae, a diverse group of minute beetles often associated with leaf litter and soil habitats. The species is known from limited records in the south-central United States and Mexico.
Selenacentrus
Selenacentrus is a monotypic genus of treehoppers in the family Membracidae, subfamily Centrotinae, described by Morris and Dietrich in 2016. The genus contains a single species, Selenacentrus wallacei, found in Texas and northern Mexico. The genus was named in honor of Selena Quintanilla-Pérez, the "Queen of Tejano Music." Selenacentrus lacks diagnostic features of currently recognized tribes within Centrotinae, including specific male genital capsule structures and femoral setae patterns, and does not fit into existing tribal classifications based on wing venation.
Selenacentrus wallacei
Selenacentrus wallacei is a treehopper species in the family Membracidae, described by Morris and Dietrich in 2016. It represents the sole species of the monotypic genus Selenacentrus. The species was discovered among mislabeled specimens in multiple museum collections and is known from Texas and northern Mexico. Its taxonomic placement required the establishment of a new genus due to unique morphological characteristics that do not align with any recognized tribes within the subfamily Centrotinae.
Selenophorus mexicanus
Selenophorus mexicanus is a ground beetle species in the family Carabidae, described by Putzeys in 1878. It belongs to the genus Selenophorus, a group of nocturnal carabid beetles commonly known as false bombardier beetles or night-stalking tiger beetles. The species is native to Central America and southern Mexico.
Semium
Semium is a genus of plant bugs in the family Miridae, tribe Semiini, subfamily Phylinae. The genus contains seven described species distributed across North America from Canada to Mexico. One species, Semium brailovskyi, has been documented in association with the host plant Euphorbia misera (Euphorbiaceae). The genus was established by Reuter in 1876.
Sermyle mexicana
Mexican Walkingstick
Sermyle mexicana is a stick insect species commonly known as the Mexican Walkingstick. It belongs to the family Diapheromeridae, a group of neotropical walkingsticks characterized by slender, elongated bodies. The species occurs in parts of Mexico and Texas, USA, inhabiting areas where its cryptic morphology provides effective camouflage against vegetation.
Simanthedon
Simanthedon is a monotypic genus of bees in the family Apidae, described by Zavortink in 1975. It contains a single described species, Simanthedon linsleyi. The genus belongs to the tribe Eucerini, commonly known as long-horned bees. Very little is known about its biology or ecology.
Sitochroa aureolalis
Sitochroa aureolalis is a small crambid moth described by George Duryea Hulst in 1886. It occurs in the southwestern United States and northern Mexico. Adults are active in spring and late summer, with a bimodal flight pattern. The species is distinguished by its bright golden-yellow forewings.
Slossonella
Slossonella is a genus of slug caterpillar moths (family Limacodidae) described by Harrison Gray Dyar in 1904. The genus contains species formerly placed in Hypargyria, including Slossonella slossonella (formerly Hypargyria slossonella), a snout moth known from Florida and Mexico. Species in this genus have multiple generations annually and are associated with specific host plants.
Smodicum pacificum
Smodicum pacificum is a species of longhorn beetle (family Cerambycidae) described by Linsley in 1934. It belongs to the tribe Smodicini within the subfamily Cerambycinae. The species has been recorded from North America and Middle America, with specific distribution including Mexico and the United States. Very few observations exist in public databases, suggesting it is rarely encountered or understudied.
Socalchemmis
false wolf spiders
Socalchemmis is a genus of spiders in the family Zoropsidae, first described by Norman I. Platnick and D. Ubick in 2001. The genus name derives from "Southern Californian Chemmis," reflecting its original discovery in California. The genus contains seventeen described species distributed in the southwestern United States and Mexico, with most species described from California localities. These spiders are commonly referred to as false wolf spiders due to their resemblance to true wolf spiders (Lycosidae).
Solenopsis molesta
thief ant, grease ant
Solenopsis molesta is a small myrmicine ant known for its habit of nesting near other ant colonies and stealing their food and brood, earning it the common name 'thief ant.' Workers are tiny (0.5–3 mm), yellow to pale brown, with reduced eyes and a two-segmented petiole. The species is native to the United States and northern Mexico, where it occupies diverse habitats from soil and rotting logs to human dwellings. Colonies range from a few hundred to a few thousand workers and may be polygynous. Nuptial flights occur from late July through early fall. The species is attracted to grease and protein sources rather than sweets, making it a distinctive household pest that is difficult to control due to its small size and inaccessible nesting sites.
Spalacopsis texana
Spalacopsis texana is a species of longhorn beetle in the family Cerambycidae, described by Thomas L. Casey in 1891. It belongs to the subfamily Agapanthiinae and tribe Agapanthiini. The species is known from the southern United States and Mexico. Like other members of its genus, it is likely associated with woody vegetation, though specific ecological details remain poorly documented.
Sparganothoides lentiginosana
Lentiginos Moth
Sparganothoides lentiginosana, the lentiginos moth, is a small tortricid moth and the sole member of the Lentiginosana Group within its genus. It occurs across the southeastern and south-central United States south to Mexico. Adults are active nearly year-round with multiple generations per year. Sexual dimorphism in forewing length is documented.
Statira hirsuta
Statira hirsuta is a species of long-jointed beetle in the family Tenebrionidae, subfamily Lagriinae. The species was described by Champion in 1889 and is known from Mexico. Like other members of the genus Statira, it belongs to a group formerly classified as the separate family Lagriidae before being subsumed into Tenebrionidae. These beetles are characterized by their elongated body form and relatively long legs and antennae compared to typical darkling beetles.
Statira nigromaculata
Statira nigromaculata is a species of darkling beetle in the family Tenebrionidae, originally described by Champion in 1889. It belongs to the subfamily Lagriinae, a group formerly treated as the separate family Lagriidae. The genus Statira is characterized by elongated bodies and relatively long antennae compared to other darkling beetles. This species is part of a diverse tropical beetle fauna with limited published ecological information.
Statira pluripunctata
Statira pluripunctata is a species of darkling beetle in the family Tenebrionidae, specifically within the subfamily Lagriinae (formerly treated as the separate family Lagriidae). The genus Statira comprises 'long-jointed beetles' characterized by elongated antennal segments that differ from the bead-like antennae typical of many other darkling beetles. This species was described by George Henry Horn in 1888 and is known from Mexico. Members of this genus are considered 'aberrant' darkling beetles that do not conform to the typical morphological expectations for the family.
Steatoda mexicana
Steatoda mexicana is a cobweb weaver spider (family Theridiidae) described by Herbert W. Levi in 1957. It is native to Mexico and the southwestern United States. Like other Steatoda species, it constructs irregular tangled webs and is a member of the same genus as the well-known Triangulate Cobweb Weaver (S. triangulosa) and the Noble False Widow (S. nobilis). Very little specific information has been published about the biology of this particular species.
Steatoda variata
Steatoda variata is a species of cobweb spider in the family Theridiidae, first described by Gertsch in 1960. It is found in the United States and Mexico. Two subspecies are recognized: Steatoda variata variata and Steatoda variata china. Very little is known about the specific biology or ecology of this species compared to better-studied congeners like Steatoda triangulosa or Steatoda nobilis.