New-guinea
Guides
Copelatinae
copelatine diving beetles
Copelatinae is a subfamily of predaceous diving beetles (Dytiscidae) comprising seven genera: Agaporomorphus, Aglymbus, Copelatus, Exocelina, Lacconectus, Liopterus, and Madaglymbus. The genus Copelatus is the largest with approximately 470 described species worldwide, showing greatest diversity in tropical South America, Africa, and Southeast Asia. Members are predominantly aquatic, though some species have colonized highly ephemeral habitats including forest floor depressions. The subfamily exhibits remarkable morphological diversity and includes phylogenetically isolated lineages such as the South African genus Capelatus.
Dineutus
whirligig beetles
Dineutus is a genus of whirligig beetles (family Gyrinidae) characterized by relatively large body size compared to other whirligig beetles. Adults are 9–15 mm long with smooth, shallowly lined, or grooved elytra. The genus occurs across North America and other regions, with species inhabiting the surface waters of streams and rivers. Members are distinguished from the smaller genus Gyrinus by their larger size and hidden scutellum.
Nomotettix cristatus
crested pygmy grasshopper, crested grouse locust, northern crested grouse locust
Nomotettix cristatus is a small pygmy grasshopper in the family Tetrigidae, commonly known as the crested pygmy grasshopper or crested grouse locust. It is one of approximately 35 Nearctic species of Tetrigidae. The species exhibits three recognized subspecies with distinct geographic distributions across North America. Like other members of its family, it is characterized by an elongated pronotum that extends over the abdomen, a trait distinguishing pygmy grasshoppers from typical grasshoppers in Acrididae.
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stemhumanRelevanceinteraction-with-humanssimilarTaxamust-include-reasonmisconceptionsonly-if-meaningfulextraDetailsimportant-additional-contextSTYLE-RULESclear-direct-sentencesavoid-fluff-filler-languagerepeating-taxonomy-in-proseoverly-technical-jargonconcrete-statementsabstract-descriptionsQUALITY-RULEScompleteness-highmost-fields-well-supportedcompleteness-mediumpartial-but-reliablecompleteness-lowsparse-datahasInferredContenttrue-ONLY-if-generalization-usedotherwise-falseOUTPUT-FORMATstrictly-match-JSON-schemano-extra-fieldsno-commentary-outside-JSONwater-associatedthree-subspeciesN.-c.-cristatusN.-c.-compressusN.-c.-floridanussmall-size399-observationsexact-matchmedium-completenessno-inferred-contentfactual-correctness-prioritizedconservative-approachinformative-contentno-fluffno-vague-generalizationscautious-language-where-neededno-fabricationunique-field-contentfocused-sectionsJSON-schema-complianceno-commentaryPhoracantha
Eucalyptus Longhorn Beetles
Phoracantha is a genus of longhorn beetles (Cerambycidae) comprising approximately 40 species, native to Australia and New Guinea. The genus was revised by Wang (1995), who synonymized Tryphocaria with Phoracantha and described nine new species. Species in this genus are primarily associated with Eucalyptus trees, with several species—particularly P. semipunctata and P. recurva—having achieved global distribution as invasive pests following introduction to regions where eucalypts have been planted. These beetles colonize the phloem of host trees and can cause significant mortality, especially during drought conditions when tree defenses are compromised.
Sosylus
Sosylus is a genus of dry bark beetles in the family Bothrideridae, containing approximately eight described species. These beetles are significant natural predators and parasites of ambrosia beetles (family Platypodidae). The genus has been documented in New Guinea and other regions, with species exhibiting distinctive triungulin-type first-instar larvae—a mobile larval form rare among beetles.
Trepobatinae
small waterstriders
Trepobatinae is a subfamily of small waterstriders (Gerridae) established by Matsuda in 1960. The group has undergone extensive radiation on New Guinea and surrounding archipelagos, with particularly high diversity in Melanesia. Four tribes are currently recognized: Metrobatini, Naboandelini, Stenobatini, and Trepobatini. The subfamily includes both freshwater and marine forms, with marine species concentrated in the New Guinea region.