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

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

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TaxonomyBrowse
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Family Blattidae

Roach - Shelfordella lateralis well ... - Periplaneta fuliginosa I think this is one big cockroach, but I'd like to know more as I'm not thrilled having them show up in my house. - Periplaneta australasiae American Cockroach - Periplaneta americana - male - female Atypical variation - Periplaneta americana - female Bug 062516bar - Periplaneta fuliginosa American or Australian cockroach? - Periplaneta australasiae Eurycotis floridana
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Blattodea (Cockroaches and Termites)
Superfamily Blattoidea
Family Blattidae
Numbers
9 spp. (all adventive, except Eurycotis floridana) in 5 genera of 2 subfamilies in our area, ~600 spp. in ~40 genera of 4 subfamilies worldwide(1)
Identification
Adults with wings that cover the abdomen: Blatta lateralis males and Periplaneta, males and females of all four species:
Turkestan Cockroach (Shelfordella lateralis) males


American Cockroach (Periplaneta americana)


Australian Cockroach (Periplaneta australasiae)


Smoky Brown Cockroach (Periplaneta fuliginosa)


Brown Cockroach (Periplaneta brunnea)
Similar in appearance to American Cockroach


Adults with wings covering ~75% of the abdomen:
Oriental Cockroach (Blatta orientalis) males


Vestigial wings:
Oriental Cockroach (Blatta orientalis) females - wingpads do not touch in the middle and do not have a pale, lateral stripe:


Turkestan Cockroach (Shelfordella lateralis) females- wingpads do not touch in the middle and have a pale, lateral stripe:


Florida Woods Cockroach (Eurycotis floridana) males and females- wingpads do touch each other in the middle of the back:


Additional species reported from the US
Eurycotis lixa is apparently established in the Florida keys and was originally described as an adventive arriving in New York. Wings do not touch in the middle and do not have a pale stripe, making it look very much like Blatta orientalis females.


The Harlequin Cockroach (Neostylopyga rhombifolia) is an ornate species that would not easily be confused with the other members of this family found in the US. In addition to wild populations in southwestern states, cockroach enthusiasts also keep them as pets.
Range
In general the species found in the US from this family are in areas that are warm and humid, such as the Gulf South. In addition, sewers and steam tunnels provide ideal habitats for some species that have established populations in other areas.