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Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Species Diomus terminatus

Diomus terminatus (Say)  - Diomus terminatus Face - Diomus terminatus Diomus terminatus Lady Beetle - Diomus terminatus Scymninae - Diomus terminatus Diomus terminates (Say) - Diomus terminatus Diomus terminatus ? - Diomus terminatus Tiny beetle - Diomus terminatus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Coccinelloidea
No Taxon (Coccinellid group)
Family Coccinellidae (Lady Beetles)
Subfamily Scymninae
Tribe Diomini
Genus Diomus
Species terminatus (Diomus terminatus)
Explanation of Names
Diomus terminatus (Say 1852)
elytron black except apical fourth yellow - Gordon's Figures (1)(2)
e. US (NY-FL to IA-TX) - Map (1)(2)
Generalist aphid predator
Life Cycle
the most commonly coll'ed sp. of Diomus (1)
Print References
Akbar W., Carlton C., Reagan T.E. (2009) Life cycle and larval morphology of Diomus terminatus (Coleoptera: Coccinellidae) and its potential as a biological control agent of Melanaphis sacchari (Hemiptera: Aphididae). Ann. Ent. Soc. Am. 102: 96-103.
Gordon R.D. (1999) South American Coccinellidae (Coleoptera), Part VI: a systematic revision of the South American Diomini, new tribe (Scymninae). Ann. Zool. (Warszawa) 49 (Suppl.1): 1-219.
Hentz M.G., Nuesslyand G.S. (2002) Morphology and biology of Diomus terminatus (Coleoptera: Coccinellidae), a predator of Sipha flava (Homoptera: Aphididae). Fla Entomol. 85: 276–279. (Full text)
Meyerdirk D.E. (1983) Biology of Diomus flavifrons (Blackburn) (Coleoptera: Coccinellidae), a citrus mealybug predator. Env. Entomol. 12: 1275-1277.
Internet References
LeConte's Type - MCZ, Harvard
Works Cited
1.The Scymnini (Coleoptera: Coccinellidae) of the United States & Canada: Key to genera and revision of Scymnus, Nephus, & Diomus
Robert D. Gordon. 1976. Bulletin of the Buffalo Society of Natural Sciences, Buffalo, NY, Vol 28.
2.The Coccinellidae (Coleoptera) of America North of Mexico
Robert D. Gordon. 1985. Journal of the New York Entomological Society, Vol. 93, No. 1.