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                    U.S. DEPARTMENT OF AGRICULTURE
 Systematic Entomology Laboratory: Beltsville, MD
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One of the groups we study: Mites (Acari) A low-temperature scanning electron micrograph of a larva of the chigger *Quadraseta brasiliensis* that bites humans and other animals.
 One of the groups we study: Beetles (Coleoptera) A waterfern beetle (*Pseudolampsis guttata*) and its host, mosquito fern.
 One of the groups we study: Moths (Lepidoptera) An aquatic moth caterpillar (*Elophila obliteralis*) that uses a bubble of air to breathe and feeds on floating vegetation.
 One of the groups we study: Wasps (Hymenoptera) A microparasitic wasp (*Leptopilina japonica*) that attacks the invasive spotted wing *Drosophila*.
 One of the groups we study: True Bugs (Hemiptera: Heteroptera) A plant bug (*Tenthocoris tillandsiae*) [family Miridae] that feeds on Spanish moss. Other species of this genus are pests of orchids and other bromeliads.
 One of the groups we study: Flies (Diptera) Two species of fruit fly (*Anastrepha serpentina* and *Anastrepha striata*) [family Tephritidae] that feed on multiple commercial and wild fruits.


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**General Information**Identification RequestsHow to Use a Key for Insect IdentificationSEL's Slide-mounting Tutorial VideosSEL and collections: a presentation at 2010 Entomological Society of America Meeting**Acari**Flat Mites of the World**Diptera**A Catalog of the Cecidomyiidae (Diptera) of the World, 5th Ed. (2021) (pdf)Systema Dipterorum: The BioSystematic Database of World Diptera******Hemiptera******Asa Fitch's Aphid NotesLeafhopper ChecklistTreehopper Immatures Project******Hymenoptera******Hymenoptera Holotypes of the USNMOnline Key to Nearctic ChalcidoideaLearn about the HYM CourseUSNM Hymenoptera Gigapan ProjectThe Chalcid Forum Archives******Lepidoptera********Gelechioidea - Dr. Mark A. Metz******Specimens curated in the U.S. Entomological CollectionAutostichidaeBatrachedridaeBlastobasidaeColeophoridaeCosmopterigidaeDepressariidaeElachistidaeGelechiidaeLecithoceridaeLypusidaeMomphidaePterolonchidaeOecophoridaeScythrididaeStathmopodidae******Noctuoidea - Dr. Paul Z. Goldstein**Specimens curated in the U.S. Entomological CollectionNoctuidaeLymantriinae**Pyraloidea and related families - Dr. M. Alma Solis**Key to Selected Pyraloidea Larvae Intercepted at U. S. Ports of Entry Specimens curated in the U.S. Entomological CollectionCrambidaePyralidaeHyblaeidaePterophoridaeThyrididae**Tortricoidea - Dr. John W. Brown (emeritus)**Online World Catalog of the Tortricidae Specimens curated in the U.S. Entomological CollectionTypes of TortricidaeTortricidae****


Northeast Area   michael.gates@usda.gov


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