Zeadolopus egenus ( LeConte, 1853 )

Peck, Stewart B. & Cook, Joyce, 2013, Systematics and distributions of the genera Cyrtusa Erichson, Ecarinosphaerula Hatch, Isoplastus Horn, Liocyrtusa Daffner, Lionothus Brown, and Zeadolopus Broun of the United States and Canada (Coleoptera: Leiodidae: Leiodinae: Leiodini), Insecta Mundi 2013 (310), pp. 1-32 : 19

Zeadolopus egenus ( LeConte, 1853)

( Fig. 12 , 23 )

Cyrtusa egena LeConte, 1853: 284 ; Horn 1880: 295. Lectotype, male, in MCZC, type number 3166, designated by Daffner 1988: 296, seen. Type locality: Habersham County, GA.

Cyrtusa impubis Zimmerman, 1869: 251 . Holotype, female, in MCZC, type number 3194, seen. Type locality: DC. [District of Columbia]. Synonymy by Brown 1937b: 173.

Apheloplastus egenus (LeConte) ; Brown 1937b: 173.

Zeadolopus egenus (LeConte) ; Newton 1983: 173; Daffner 1988: 296.

Diagnosis. Length (pronotum + elytra) = 1.18–1.74 mm; greatest width = 0.86–1.28 mm. Yellowish to reddish brown, shiny. Head moderately coarsely, densely punctate. Antennal club darker than funicle; apical antennomere longer than and as wide as penultimate antennomere. Sides of pronotum rounded, posterior angles rounded; base rounded medially, weakly concave before posterior angles. Pronotal punctation fine and widely spaced. Elytral strial punctures deep and closely spaced, not clearly evident in basal one-fourth. Interstriae finely punctate. Metasternum coarsely, densely punctate; punctures finer medially. Metatibia widest from middle to apex, three times as wide as at base. Abdominal sternites III–VII each with transverse row of small punctures before apex. Median lobe of aedeagus ( Fig. 12 ) broad, paired apices inwardly curved. Parameres extend to or slightly beyond apex of median lobe. Internal sac as in Fig. 12 .

Distribution. North America ( Fig. 23 ): CANADA. ONTARIO, QUEBEC. UNITED STATES. ALABAMA, DISTRICT OF COLUMBIA, FLORIDA, GEORGIA, ILLINOIS, INDIANA, KENTUCKY, MASSACHUSETTS, MARYLAND, MICHIGAN, NORTH CAROLINA, SOUTH CAROLINA, TEXAS, VIRGINIA, VERMONT.

Previously recorded in North America ( LeConte 1853, Zimmerman 1869, Brown 1937b, Daffner 1988) from: CANADA. ONTARIO. Arnprior. Blackburn Hamlet. Leamington. Mer Bleue, near Ottawa. Ottawa. Port Rowan. Simcoe. QUEBEC. Aylmer. UNITED STATES: DISTRICT OF COLUMBIA. FLORIDA. Alachua Co., Gainesville. Dade Co., Everglades National Park, Long Pine Key. Sarasota Co., Myakka River State Park. Suwanee Co., Suwanee River State Park. GEORGIA. Habersham Co. KENTUCKY. 4 mi E Horse Cave. MASSACHUSETTS. Lincoln. Tyngsboro. MICHIGAN. Detroit. SOUTH CAROLINA. Oconee (not Greene) Co., Oconee National Forest.

Seasonality. Adults have been collected from the months of April to October, with most in June to August, and early and late records are from more southern localities.

Bionomics. Adults have been collected in wooded habitats ranging from mixed deciduous, open pineland, and warm temperate bottomlands to mangrove-hammock transition and oak-palm hammock. They have been taken most often by flight intercept traps, evening car netting and ultraviolet light traps.

New material examined. We have seen 232 specimens from the following localities: CANADA. ONTARIO. Almonte. Chaffeys Locks, QUBS. Guelph. Kemptville Forest. Mer Bleue. Limoges, 40 km E Ottawa. Marlborough Forest, 15 km W North Gower. Pakenham Mountain road. Rideau Ferry to Portland. Rondeau Provincial Park. L3C6 Wolford Township 44° 52’03”N, 75°43’50” W. Tilbury. UNITED STATES. ALABAMA. Blount Co., 7 mi S Cleveland. Jefferson Co., Hoover. Vestavia. Morgan Co., 3.5 mi SW Fayette. FLORIDA. Dade Co., Long Pine Key. Highlands Co., Archbold Biology Station. Monroe Co., Big Pine Key. Sugarloaf Key, Kitchings Hammock. Sarasota Co., Myakka River State Park. ILLINOIS. Champaign Co., Allerton Park, Monticello. Mahomet, Nettie Hart Memorial Woods. 3 mi NW Homer. Cook Co., Chicago Heights. INDIANA. Monroe Co., Bloomington. Tippecanoe Co., MARYLAND. Montgomery Co., Potomac. Rockville. Talbot Co., Wittman. Worchester Co., 8 km WNW Snow Hill. 6 km SW Snow Hill. NORTH CAROLINA. Transylvania Co., Mt. Pisgah, Blue Ridge Parkway mile 414. SOUTH CAROLINA. Greenville Co., Greenville. Oconee Co., Oconee State Park. TEXAS. Aransas Co., 10 km SE Austwell. Brazos Co., College Station, Lick Creek Park. Fort Bend Co., Brazos Bend State Park. Montgomery Co., 4.5 mi N Montgomery. VIRGINIA. Fort Monroe. Fairfax Co., Burling Park. Warren Co., 4 km NNW Linden. VERMONT. Franklin Co., Bakersfield.

Figures

Figure 23. North American distribution of Zeadolopus egenus (black circles).

Figures 7–15. Aedeagi, dorsal, of Lionothus species. 7) L. ulkei. 8) L. forticornis. 9) L. bidentatus. 10) L. exiguus. 11) L. parvoculus. Scale line = 0.3 mm for L. ulkei, L. exiguus; 0.4 mm for L. forticornis, L. bidentatus, L. parvoculus. Aedeagi, dorsal, of Zeadolopus species. 12) Z. egenus. 13) Z. bifoveolatus. 14) Z. oklahomensis. 15) Z. rubricornis. Scale line = 0.3 mm.