Hydrophilus (Dibolocelus) ovatus Gemminger and Harold 1868

Hydrophilus (Dibolocelus) ovatus Gemminger and Harold, 1868 (Figs. 3, 9) Hydrophilus ovalis Ziegler, 1844: 45 (primary homonym of Hydrophilus ovalis Brullé, 1837 and Hydrophilus ovalis Laporte de Castelnau, 1840). Dibolocelus ovalis (Ziegler); Régimbart 1901: 225. Hydrophilus ovatus Gemminger and Harold, 1868: 476 (replacement name for Hydrophilus ovalis Ziegler). Stethoxus ovatus (Gemminger and Harold); Bedel 1891: 314. Hydrous (Dibolocelus) ovatus (Gemminger and Harold); Kuwert 1893: 83. Dibolocelus ovatus (Gemminger and Harold); Young 1954: 196. Hydrophilus (Dibolocelus) ovatus Gemminger and Harold; Hansen 1999: 233. Material Examined. See Appendix 1. Diagnosis. Size large (30–35 mm). Dorsum black and often exhibiting a greenish tint when viewed under directed light or under water. Antennal cupule dark, short, often rounded, and not entirely covering the first antennal club segment. Abdominal pubescence restricted to midline of ventrites 3–5. Maxillary palps of males modified with third segment flattened and widened. Protarsal claws of males enlarged but subequal in size and shape. Fifth protarsal segment slightly widened in males. This species can easily be distinguished from all other North American Hydrophilus by the glabrous region being restricted to the midline of abdominal ventrites 3–5, the bilobed prosternum, and the shortened, dark, and rounded antennal cupule. Distribution (Fig. 9). CANADA: Ontario; MEXICO *: Chiapas, Michoacán, Nayarit, Quintana Roo, San Luis Potosí, Sinaloa, Tamaulipas, Veracruz; USA: Alabama *, Delaware, District of Columbia *, Florida, Georgia, Illinois, Indiana, Kansas, Kentucky *, Louisiana *, Maryland *, Massachusetts *, Michigan, Mississippi, Missouri, New Hampshire *, New Jersey *, New York, North Carolina *, Ohio *, Oklahoma, Pennsylvania, Rhode Island *, South Carolina *, Tennessee *, Texas, Virginia * (Hansen 1999). Remarks. This species can be common in eastern North America in a variety of standing water habitats such as ponds and marshes. States marked with an asterisk (*) indicate new state records. Although listed in Hansen (1999), Quebec and Connecticut have been excluded from the distributions because the papers with these records could not be located. Hydrophilus ovatus CANADA: Ontario (Literature: Smetana 1988). MEXICO: Chiapas: Pinola, x.1970, R. Wing (1). Michoacán: Apatzingan, 5.xii.1963, M. W. McFadden (1). Nayarit: San Blas, 12.vii.1980, H. Velasco (1); 3 mi E San Blas, 26.viii.1965, C. D. Johnson (1). Quintana Roo: Mayan Palace Riviera Resort, 21.iii.2006, P. J. Torres (SEMC: 1). San Luis Potosí: El Salto, 16.vii.1963 (SEMC: 1); El Salto, 15.vii.1963 (SEMC: 1); El Salto Falls, 23-24. vi.1965, O. S. Flint (1); El Naranjo, 29.vi.1965, P. J. Spangler (2); El Salto de Agua, 1-3.v.1971, A. Newton (1). Sinaloa: Culiacan, xi.1975, L. M. L. Hernandez (1); Los Mochis, 24.x.1959, W. W. Gibson (5). Tamaulipas: Tampico, 29.iv.1955, F. C. Bishopp (1); El Salto Falls, 26 mi W. Antiguo Morelos, Tamps., 11-14.vii.1963, Duckworth & Davis (2). Veracruz: Tecolutla, 25.vii.1955 (SEMC: 2); 3 mi S Tecolutla, 26.vi.1962, J. M. Campbell (1). USA: Alabama: Auburn, 30.v.1963, L. G. Sanford (1); Mobile, 12.iii.1909, W. Robinson (Donor) (1); Mobile, 12.iii.1909, H. P. Ludiag (2); Mobile, 25.ix.1949, W. Rosenberg (1). Connecticut (Literature: Hansen 1999). Delaware (Literature: Short 2004). District of Columbia: [No additional data] (3); leg. Hubbard & Schwarz (2); 17.v.1902, H. S. Barber (1); 22.iv, R. P. Carie (1); 22.iv, H. S. Barber (1); 24.iv.1905, D. H. Clemons (3); 17.vii.1906, Z. Shoemaker (1); 4.vi.1902, Z. Shoemaker (2); 2.vi.1902, Z. Shoemaker (1); 22.iv, H. S. Barber (2); 30.iv.1902, C. E. Burden (2); 6.vi.1901, C. E. Burden (1); 29.iv.1901, C. E. Burden (1); 14.v.1898, C. E. Burden (1); 27.ix.1904, D. H. Clemons (2). Florida: Homestead, 5.ix.1951, H. & A. Howden (1); Florida, Williams Landing, 2-14.vii.1967, R. Smith (1); Rt. 41 and I-75, 13.iv.1983, Scott W. Gross (1); Jacksonville, 3.ix.1957, P. H. Thompson (1); Torreya State Park, 21.iv.1984, Scott W. Gross (2); 17 mi N Tallahassee, Tall Timbers Research Station, 9-15. vi.1967, L. Collins (1); 18 mi N Tallahassee, Tall Timbers Research Station, 1-8.vi.1967, L. Collins (1); Hollywood, iv.1949, W. Rosenberg (1); Ft. Meyers, 6.xi.1947, J. A. Wilcox (1); Belle Glade, vi.1967 (3); Palm Beach (2); Archbold Biological Station, 19.ix.1978, William Rosenberg (2); Archbold Biological Station, 15.viii-21.x.1978, William Rosenberg (3); Archbold Biological Station, 20-27.iv.1981, T. J. Henry (1); Parker Island, near Archbold Biological Station, 31.iii.1962, D.C. Ferguson (6); Parker Island, 4-7.vi.1964, A.W. Hodges (4); Tarpon Springs, 20.iii.1950, H. & A. Howden (1); Lake Mary, x.1955, Bossoher (1); Old Town, v.1967, “Lenczy” (15); Gainesville, 8.xii.1932, Student-HTI (1); Gainesville, 4.xi.1933, Student-Sadler (1); Gainesville, 24.ix.1938 (1); Gainesville, 28.vi.1972, A.G.M. (1); Gainesville, 1.ix.1981, Scott W. Gross (1); 3 mi N. Old Town, 20.viii.1973, M. Druckenbrod (1); NW Gainesville, 10.vii.1994, E.H. Nearns (1); 17.viii. 1973, Matta (2). Georgia: Savannah, 12.vi.1948, H.F. Howden (1); Beachton, 1-7.vii.1967, E.V. Komarek Sr. (1); Little Cumberland Island, viii.1971, W.E. Steiner (2). Illinois: Collection Bellage, Collection C.V. Riley (1). Indiana: [without specific locality] (SEMC: 1). Iowa: [without specific locality] (1); Iowa City, 4.vii.1898, Wickham (1). Kansas: [without specific locality], F. H. Snow (SEMC: 1); “ U. of K. Col. 58”, vi (1). Kentucky: Crailhope, 15.vii.1943, C. Cook (1). Louisiana: Morgan City, 3.v.1904, E. S. G. Titus (4); 14 mi WSW New Orleans, 6.v.1952, A. A. Alcorn (SEMC: 1); New Orleans, 26.vii.1959, W. Gibson (1); New Orleans, 149. vi.1946, H. E. Hubert (1); New Orleans, 26.vii.1959, W. Gibson (1); New Orleans, H. Soltau (collection) (1); Gueydan, 4.iv.1926, E. Kahmbach (1); Gueydan, 9.iv.1926, E. Kahmbach (1); Gueydan, 13.vi. 1925, E. Kahmbach (1); Nacogdoches, 28.vi. 1905, W. A. Hooker (3); Lafayette, 5.ix.1905, A. W. Morril (1). Maryland: Smallwood State Park, 27.vii.2002, W. E. Steiner & J. M. Swearington (2); Marlboro, 28.v.1965, R. Gordon (4); Pickering Creek Audubon Center, 9.5 mi NW Easton, 4.ix.2008, M. G. Pogue (2); Pickering Creek Audubon Center, 9.5 mi NW Easton, 31.vii.2008, M. G. Pogue (8); “ U of Md. Tob. Fm.”, 10.v.1965, R. Gordon (2); “ U of Md. Tob. Fm.”, 5.v.1965, R. Gordon (2); “ U of Md. Tob. Fm.”, 20.v.1965, R. Gordon (4); Marlboro, “ V. at MD Tob. Fm.”, 27.v.1965, R. Gordon (2); Marlboro, “ V. at MD Tob. Fm.”, 5.v.1965, R. Gordon (1); Marlboro, “ V. at MD Tob. Fm.”, 6.vi.1967, R. Gordon (1); Marlboro, V. at MD Tob. Fm., 19.vi.1965, R. Gordon (1); Marlboro, “ V. at MD Tob. Fm.”, 25.v.1965, R. Gordon (1); S. Keston, 12.vi.1956, Don Stout (2); Kennedyville, 25.vi.1989, C. L. Staines (1). Massachusetts: Chicopee, Wickham Collection 1939 (2). Michigan: Detroit, Hubbard & Schwarz (1). Mississippi: Greenwood, 4.vii.1972, D. Brzoska (SEMC: 1); Greenwood, 29.vii.1971, D. Brzoska (SEMC: 1); Scott, 9.vii.1964, V. H. Owens (1); Starkville, 10 Km S, 18.vi.2001, R. Brooks, T. Peterson (4); (Literature: Testa and Lago 1994). Missouri: Sikeston, 3.viii.1952, D. W. Stout (1); Newtonia, 19-30.iv.1955, Glenn Cole (4); Gascondade, 12 Jerome, 29.iv.1956, W. A. Dimmitt (1). New Hampshire: (Literature: Tarr and Babbitt 2001). New Jersey: Anglesea, 4.ix. 1904, G. M. Greene (4); Anglesea, 17.v.1901, G. M. Greene (1); Woodbury, 30.vii, G. M. Greene (1). New York: West Point, 25.v.1913, W. Robinson (1). North Carolina: Frisco, 16.vii.1976, W. E. Steiner (4); Frisco, 15.vii.1972, W. E. Steiner (1); Raleigh, 7.vi.1952, H. & A. Howden (1); Lake Waccamaw, 4.vii.1985, W. Steiner & A. Gerberich (2); Oxford, 1962, (3). Ohio: (Literature: Dury 1879). Oklahoma: (Literature: Archangelsky and Durand 1992). Pennsylvania: “Phila. Neek”, 3.v, G. M. Greene (1). Rhode Island: (Literature: Sikes and Webster 2005). South Carolina: Pawley’ s Island, 3.vii.1954, J. G. Barker (2); Edisto River, 16 mi S St. George, 14.ix.1965, O. L. Cartwright (2); 8 mi W of Tillman, 31.v.1980, J. A. Lankalis (2). Tennessee: Nashville, 3.vii, Osburn (1). Texas: Beaumont, 11.x.1904, E. S. G Titus (2); Mercedes, 17.iii.1934, “Thagent” 121 (1); Tivoli, 10.x.1908, J.D. Mitchell (1); Dallas, 27.iv.1905, F. C. Bishopp (1); Nacogdoches, 19.iv.1961 (SEMC: 1). Virginia: 3 mi S. Creeds, 21.viii.1941, M. Druckenbrod (4); 5.x.1974, K. W. (2); Stumpy Lake, 29.iii.1973, A. G. M. (1); Burn Unit 2, Blackwater Ecol. Preserve, Zuni Pine Barrens, 15.iv.2006, A. V. Evans, D. Loomis (4); Norfolk, 28.xi.1973, B. O. R. S., MeAc (2); Virginia Beach, Blackwater road, 8.iv. 1984, Savitsky Pugul (1); Harrison Lake National Fish Hatchery, 13.vii.2006, A. V. Evans (2); Piney River, 1952, W. Rosenberg (1); ca. 0.2 km W jct. Wilcox & Shackleford Rds., Ft. AP Hill TA 22 B, 31.v.2006, Chazal, Bedell (2); ca. 0.2 km W jct. Tater Tr. & Lee R., Ft. AP Hill TA 22 A, 1.vi.2006, Chazal, Bedell (2); Fort A. P. Hill, Jordan Crossing Pond, 21.vi.2005, A. C. Chazal (2); Mount Creek at Burma Rd., Ft AP Hill TA 18, 1.vi.2006, Chazal, Bedell (6); Fredericksburg, 22.iv.1989, W.D. Richardson (2).

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