Donus zoilus (Scopoli, 1763)

Hoebeke, E. Richard & Griffin, Sean R., 2015, First Record of the Palearctic Root WeevilOtiorhynchus porcatus (Herbst) (Coleoptera: Curculionidae: Entiminae) in The United States and Additional Records of Other Adventive Weevils Occurring on the Isles of Shoals (Maine and New Hampshire), The Coleopterists Bulletin 69 (4), pp. 679-686 : 683-684

Donus zoilus (Scopoli, 1763)

( Curculionidae : Hyperinae )

Hypera punctata (Fabricius, 1775) (synonym)

Specimen Examined. MAINE: Smuttynose Island , 14 June (1). Specimen taken from a sweep sample .

Remarks. Donus zoilus is best known by its junior synonym ( H. punctata ) and is referred to as the “clover leaf weevil” in the economic literature. It is native to Eurasia, but now also occurs throughout much of North America, wherever clover and alfalfa are grown. In Canada, it has been recorded from British Columbia and Ontario, Nova Scotia, and Prince Edward Island to Newfoundland (McNamara 1991; Majka et al. 2007b, c). In the United States, it is widely distributed (O’ Brien and Wibmer 1982). Majka et al. (2011) reported it from throughout the Northeast. It was first found in North America in Québec in 1853 ( Brown 1940). Adults are associated with various plants in the family Fabaceae ( Hoffmann 1954) , and the larvae feed principally on species of Trifolium L. and Medicago L.

Hypera meles (Fabricius, 1792) ( Curculionidae : Hyperinae )

Specimen Examined. MAINE: Smuttynose Island , 14 June (1). Specimen taken from a sweep sample .

Remarks. The Palearctic H. meles is also called the “clover head weevil” in the economic literature and is presently recorded across Canada (Alberta, Saskatchewan, Ontario, Québec, New Brunswick, Nova Scotia, and Prince Edward Island) and much of the eastern United States (Arkansas, Connecticut, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Mississippi, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, South Carolina, Tennessee, Utah, Virginia, West Virginia) ( Titus 1911; O’ Brien and Wibmer 1982; McNamara 1991; Majka et al. 2007b, c, 2011). It was first recorded in North America from New York in 1907 ( Brown 1940) and is associated with species of Trifolium , Medicago , and Lotus L. ( Fabaceae ) ( Hoffmann 1954).

Hypera rumicis (Linnaeus, 1758) ( Curculionidae : Hyperinae )

Specimens Examined. MAINE: Malaga Island, 14 June (1); Smuttynose Island , 14 June (1) . NEW HAMPSHIRE: Lunging Island , 21 June (4). Specimens were taken from sweep samples .

Remarks. The Palearctic H. rumicis was first reported in the United States as early as 1914 on the West Coast (several locations in Oregon) and in North Dakota in 1912, Iowa City, Iowa in 1917, and in Edmonton, Alberta, Canada in 1919 ( Buchanan 1923). O’ Brien and Wibmer (1982) and Majka et al. (2011) also reported it from Connecticut, Massachusetts, Maine, New Hampshire, and Ontario. It is associated with various species of dock ( Rumex ), especially Rumex obtusifolius L. and Rumex crispus L. ( Polygonaceae ).

Larinus planus (Fabricius, 1792) ( Curculionidae : Lixinae)

Specimens Examined. MAINE: Smuttynose Island , 11 June (3), 14 June (9). Specimens were taken from sweep samples .

Remarks. Larinus planus , native to Europe, was apparently accidentally introduced during the 1960s into the Northeast where it is now widespread in Maryland, New York, Ohio, and Pennsylvania (cited as Larinus carlinae Olivier ; Wheeler and Whitehead 1985). In Canada, it is presently known from Alberta, British Columbia, Nova Scotia, Ontario, and Québec ( Douglas et al. 2013). The first published North American record is from Maryland in 1971 ( White 1972). It has been subsequently released and redistributed in the Great Plains and western states (Louda and O’ Brien 2002) as a biological control agent of thistles ( Carduus L. and Cirsium Mill. ) ( Asteraceae ).

Magdalis barbicornis (Latreille, 1804) ( Curculionidae : Mesoptiliinae )

Specimens Examined. MAINE: Smuttynose Island , 14 June (1), 26 June (1). Specimens were taken from sweep samples .

Remarks. Magdalis barbicornis is native to and commonly encountered throughout Europe. Few US records of this species exist in the literature, and some cannot be verified. Nonetheless, it is recorded in the northeastern United States (Connecticut, Massachusetts, New York, Pennsylvania,) (O’ Brien and Wibmer 1982; Anderson and Cline 2011) and California (San Mateo and Alameda Counties) (Anderson and Cline 2011). It is apparently associated with various woody rosaceous hosts, such as species of Crataegus Tourn. ex L., Prunus L., and Malus Mill. ( Hoffmann 1954).