The European Earwig Found in Provo, Utah

The European Earwig Found in Provo, Utah

Great Basin Naturalist Volume 5 Article 2 Number 1 – Number 2 10-20-1944 The urE opean earwig found in Provo, Utah Vasco M. Tanner Brigham Young University Follow this and additional works at: https://scholarsarchive.byu.edu/gbn Recommended Citation Tanner, Vasco M. (1944) "The urE opean earwig found in Provo, Utah," Great Basin Naturalist: Vol. 5 : No. 1 , Article 2. Available at: https://scholarsarchive.byu.edu/gbn/vol5/iss1/2 This Note is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Great Basin Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. : The Great Basin Naturalist \v. 22 w. iiKNDKKsoN Vol. V, Nos. 1 , 2, 54. 1938— Isley, F. K. The relation of Texas Acrididae to plants and soils. Ecol. monog. 8: 551-604. 55. 1942—Ball, E. D., et al. The grasshoppers and other Orthoptera of Arizona. Ariz. Agr. Exp. Sta. Tech. Bui. 93 : 255-273. 56. 1942— Mills, H. B. Montana insect pests. 1941-1942: twenty- ninth report of the state entomologist. Mont. Agr. Exp; Sta. Bui. 408. 36 pp. The European Earwig Found in Provo, Utah ha August of this year an insect, that was said to be a pest in the flower garden, was brought to me by Mr. Robert Curtis. He wanted to know what kind of in- sect it was and how it could be controlled. Upon examination of the specimens they were found to be Forju'itla auricuhiria Linn., the European Earwig, a new record for this area. This species is dark brown in color, 10-15 mm. long, body flattened, winged and with well developed forcepts, at the posterior end of the body. The females hibernate by going down into the soil 8 to 10 inches. They come out in the spring, usually some time in April, depending upon the temperature. The female lays her pearly-white eggs, in small masses, in the moist soil or under debris. There is only one generation each year. This cosmopolitan species has spread throughout the United States and is a serious pest in some areas. It can be controlled with a poison bait or contact spray. Dry white bread and lead arsenate, 16 pounds to one. mixed with a little water is recommended as an effective bait. The reader may get additional infor- mation concerning this species from the U. S. D. A. Bull. No 566 by D. W. Jones. The following species of Earwigs are now known to occur in Utah Family Spongiphoridae Spoiiyoz'oslox aljiccdciitatiis (Caud.), .St. George, Utah, a tropical, semi-tropical species. Family Labiidae Labia tiiinor (Linn.), Provo, cosmopolitan in distribution. Family Forficulidae Forficiila auricularia Linn., Salt Lake City and Provo, cosmopolitan in dis- tribution.—V. M. T..

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