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Species Luridiblatta trivittata

Phyllodromica trivittata - Luridiblatta trivittata Cockroach? - Luridiblatta trivittata L. trivittata - Luridiblatta trivittata - male Beetle or cockroach? - Luridiblatta trivittata Is this a bed bug? - Luridiblatta trivittata Unknown insect - Luridiblatta trivittata roach on Sabercat Creek Trail 2022 Sept 30 - Luridiblatta trivittata Speedy - Luridiblatta trivittata
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Blattodea (Cockroaches and Termites)
Superfamily Blaberoidea
Family Ectobiidae
Subfamily Ectobiinae
Genus Luridiblatta
Species trivittata (Luridiblatta trivittata)
Synonyms and other taxonomic changes
=Phyllodromica trivittata
Adults are small and possibly flightless, female wings highly reduced, male wings are somewhat short and do not cover abdomen. Females are often found carrying oothecae, (egg cases) as demonstrated by this individual:
native to the Mediterranean, adventive in our area (CA, recently introduced)(1)(2), now apparently in Marin, Petaluma and Cotati.
Reports of high abundance both indoors and outdoors make it likely that reproduction is occurring outdoors with subsequent invasion of nearby structures. As this species adapts to this new environment, studies will need to be conducted to confirm this.
Known from dry habitats around the Mediterranean. It has been recorded from Morocco; Algeria; Spain; Italy (Sardinia Island); Italy (Sicily); Libya; and Israel. Given that it has not been recorded as being a pest in buildings in those countries (as far as I'm aware) it is unlikely to invade buildings in the USA. Comment by George Beccaloni (The Natural History Museum, London, UK).
Works Cited
1.Beccaloni G.W. (2007‒2023) Cockroach species file
2.California plant pest & disease report, Vol. 25 (Jan 2008 through Dec 2009)
Gaimari S., O’Donnell M., eds. 2011. California Department of Food & Agriculture, Plant Pest Diagnostics Branch. 108 pp.