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Species Diestrammena asynamora - Greenhouse Camel Cricket

Camel Cricket - Diestrammena asynamora - male Camel Cricket - Diestrammena asynamora - female Greenhouse Camel Cricket - Diestrammena asynamora - male Mystery Spider Cricket  - Diestrammena asynamora - female Diestrammena asynamora - male Cricket - Diestrammena asynamora - female Diestrammena asynamora - female Bathroom bug  - Diestrammena asynamora - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Orthoptera (Grasshoppers, Crickets, Katydids)
Suborder Ensifera (Long-horned Orthoptera)
Infraorder Tettigoniidea (Katydids, Camel Crickets, and relatives)
Family Rhaphidophoridae (Camel Crickets)
Subfamily Aemodogryllinae
Genus Diestrammena
Species asynamora (Greenhouse Camel Cricket)
Other Common Names
Greenhouse Stone Cricket
Spider Cricket
La Sauterelle des Serres
Synonyms and other taxonomic changes
Tachycines asynamorus Adelung, 1902. Type locality: botanic garden in St. Petersberg, Russia
Tachycines minor Chopard, 1963. Type locality: Sakashita-ana Cave at Kamiyamada, Katsume, Kagoshima Pref., Japan
Tachycines meditationis W├╝rmli, 1973. Type locality: Ningbo [Ning-po], Zhejiang, China
Diestrammena (Tachycines) asynamora (Adelung) Sugimoto, 2002
Explanation of Names
In 1898, S. H. Scudder (3) identified insects found by Otto Lugger in Minnesota as Diestrammena maromorata. Subsequently the species turned up in numerous locations east of the Rockies in North America, primarily in the northeastern United States. Until 1914 this species was misidentified as D. marmorata (= D. japanica) in both Europe (where it had similarly been introduced) and North America, but in that year Chopard (1) discovered and corrected the identification error. However, it was not until 1944 that Rehn (2) again pointed out this error in North America, and that the mistake was generally known and accepted as fact in North America. Sometime more recently, what is apparently the real D. japanica has been introduced into approximately the New York City area, and is apparently limited, so far, to states relatively nearby to that city.
Could turn up worldwide anywhere humans provide suitable habitat. Easily transported in freight, luggage, and nursery stock. Introduced into and apparently now locally common in most of Europe and in the U.S. and southernmost Canada from the Atlantic coast to the east base of the Rockies. Probably originated in China.
Perhaps originally found in caves or similar environments. In North America common in basements, cellars, wells, irrigation boxes, sheds, under benches in greenhouses, and similar relatively warm dark damp or humid environments. Often found in aggregations of many individuals. Where conditions are excessively dry, these insects usually are not found.
Probably can be found in all growth stages year-round, but adults seem to be most abundant in summer and autumn.
An opportunistic scavenger, will feed on varied organic material, dead or alive. Sometimes causes damage, particularly to young plants in greenhouses.
Internet References
1) Chopard, M.L. 1914. 'Sur L'Origine de Tachycines asynamorus Adelung, Orthopt. Phasgonuridae';
    Bulletin du Museum National D'Histoire Naturelle 20(4): 234
2) Rehn, J.A.G. 1944. 'The Rhaphidophorid Tachycines asynamorus Adelung in America (Orthoptera,
    Grylacrididae, Rhaphidophorinae)'; Entomological News 55(2): 36
3) Scudder, S.H., 1898. 'Proceedings of the Club'; Psyche VIII: 180