Anogdus obsoletus ( Melsheimer, 1844 )

Peck, Stewart B. & Cook, Joyce, 2013, A revision of the species of Anogdus LeConte of the United States and Canada (Coleoptera: Leiodidae: Leiodinae: Leiodini), Insecta Mundi 2013 (290), pp. 1-27 : 8-10

Anogdus obsoletus ( Melsheimer, 1844)

( Fig. 9. 10 , 33 )

Pallodes obsoletus Melsheimer, 1844: 107 . Lectotype female in MCZC, type number 3203, designated by

Daffner 1988: 278; seen by us. Type locality: USA: PENNSYLVANIA (no additional locality data). Neocyrtusa obsoleta (Melsheimer) , Brown 1937a: 163. Cyrtusa blandissima Zimmermann, 1869: 250 ; Horn 1880: 294; synonymy in Brown 1937a: 163; Daffner

1988: 278. Type female in MCZC, type number 3193 . Type locality: USA: NORTH CAROLINA (no additional locality data). Anogdus obsoletus (Melsheimer) ; Daffner 1988: 278.

Diagnosis. Length (pronotum + elytra) = 1.54–2.10 mm; greatest width = 0.98–1.42 mm. Punctation of head moderately fine to moderately coarse and dense. Antennal club moderately slender; antennomere 7 narrower than 9 and 10; antennomere 8 narrow, disk-like; apical antennomere slightly narrower than 9 and 10. Sides of pronotum weakly sinuate before obtuse posterior angles. Pronotum finely, sparsely punctate. Elytral strial punctures round, deep and closely spaced; interstrial punctures finer and sparser than pronotal punctures; elytral epipleura with scattered short setae. Metasternum at anterior margin with a row of large, deep punctures which are larger in diameter than lateral punctures. Protarsi and mesotarsi of male with dense setae ventrally. Male mesofemur with or without a rounded expansion ventrally near apex; male mesotibia curved; mesotibial process broad, triangular, distinctively curved with apex passing behind large tibial spine. Male metafemur slender, often with a tooth-like expansion near the apex of the lower margin. Abdominal sternite III with a row of deep, round punctures at an- terior margin; sternites IV–VII each with a median row of punctures of about same size as on sternite III. Median lobe of aedeagus ( Fig. 9, 10 ) elongate, dorsoventrally flattened apically; paired dorsal lobes apically acute. Parameres slender with strongly expanded apices, nearly reaching apex of median lobe. Armature of internal sac as in Fig. 9, 10 .

Distribution. Distributed widely in southeastern Canada and the eastern United States, south to Vir- ginia, Alabama, and Texas ( Fig. 33 ). Previously published distributional records in Brown (1937a: 163) and Daffner (1988: 278): CANADA. ONTARIO: Constance Bay. USA. MASSACHUSETTS: Middlesex Co.: Lincoln; NORTH CAROLINA: no additional data; ILLINOIS: Champaign Co.: Mahomet; KEN-

TUCKY: Edmonson Co.: Horse Cave ; OKLAHOMA: Latimer Co ; PENNSYLVANIA: no additional data; Bucks Co.: Wisahickon. TEXAS: Gonzales Co. : Palmetto State Park .

New material examined (n=184). CANADA: ONTARIO: Pelee Island , 28. VI.1940, W.J. Brown (6, CNCI) ; Bronte Creek Provincial Park, 7.VII.1983, B. V. Brown, FIT (1, SBPC) ; Guelph , 28.VII–9. VIII.1983, B. V. Brown, FIT (2, SBPC) ; Hamilton , 28. VI –14.VII.1982, M. Sanborne (2, CNCI) ; same data except: 23–30.VIII.1981 (1, CNCI) ; same data except: 30. VI –8.VII.1981 (4, CNCI) ; same data except: 31.VII.1980 (1, CNCI) ; same data except: 10–23.VIII.1982 (1, CNCI) ; same data except: 2–7.VIII.1981 (1, CNCI) ; same data except: 7. VI.1981 (1, CNCI) ; Kemptville forest , 16.VII.1994, S. Peck, 94–20, forest evening car net (2, SBPC) ; same data except: 29.VII.1994, 94–24 (3, SBPC) ; Limoges, LaRose Provincial Forest , N 45°22.703’ W 75°15.244’, 1–30.VIII.2001, 63m, S. & J. Peck, 01–7, mixed forest FIT (1, SBPC) ; Ottawa , IX.1989, S. Peck (1, SBPC) ; Ottawa, 15kmW N. Gower, Marlborough Forest roads, 18.VII.91, S. & J. Peck, 91–300, evening car net (1, SBPC) ; Ottawa , Mer Bleue Bog, N 45°23.260’ W 75°31.134’, 1–30. VI. 2001, 116m, S. & J. Peck, 01–1, mixed forest FIT (1, SBPC) ; same data except 1–30.VII.2001, 01–2 (1, SBPC) ; Pakenham Mt. Rd. , 27.VII.1994, S. Peck, 94–23, forest evening car net (1, SBPC) ; Rideau Lakes, Rideau Ferry to Portland , 26–27.VII.1991, S. & J. Peck, 91–302, evening car net (1, SBPC) ; Shirleys Bay, 15kmW Ottawa , 1–15.VII.1984, M. Kaulbars, FIT (9, SBPC) ; same data except: 16–31. VII.1984 (4, SBPC) ; same data except: 1–15.VIII.1984 (7, SBPC) ; same data except 15–30. VI.1984 (3, SBPC) ; Grenville Co.: L3C6 Wolford Twp. , 44°52’03”N 75°43’50”W, 3–6.IX.1999, J. Cook, mature mixed forest, FIT (1, JCIC) ; same data except: 20–23.VIII.1999 (1, JCIC) ; same data except: 25–28. VI.1999 (1, JCIC) ; same data except: 9–12.VII.1999 (4, JCIC) ; same data except: 6–9.VII.1999 (1, JCIC) ; same data except: 2–6.VIII.1999 (1, JCIC) ; same data except: 13–16.VIII.1999 (1, JCIC) ; same data except: 28. VI –2.VII.1999 (1, JCIC) ; same data except: 16–19.VII.1999 (2, JCIC) ; same data except: 18–21. VI.1999 (1, JCIC) ; same data except: 15–19. VI.1998 (2, JCIC) ; same data except: 6–10.VII.1998 (1, JCIC) ; same data except: 23–26.VII.1999 (1, JCIC) ; same data except: 28.VII–5.VIII.1991 (2, JCIC) ; same data except: 1–3.VIII.1990 (1, JCIC) ; same data except: 7–14.VII.1991 (1, JCIC) ; same data except: 1–9.VIII.2004 (1, JCIC) ; same data except: 17–24.VIII.1998 (1, JCIC) ; same data except: 5–12.VII.2002 (1, JCIC) ; same data except: 7–14.VIII.2000 (1, JCIC) ; same data except: 11–21.VII.2004 (3, JCIC) ; same data except: 9–15.VIII.2004 (2, JCIC) ; same data except: 13–20. VI.2004 (1, JCIC) ; same data ex- cept: 27. VI –4.VII.2004 (1, JCIC) ; same data except: 4–11.VII.2004 (1, JCIC) ; same data except: 14–21. IX.2003 (1, JCIC) ; same data except: 20–27.IX.1999 (1, JCIC) ; Wolford Township roads, 5.VII.1993, J. Cook, evening carnetting (1, JCIC) ; Leeds-Grenville Co.: 7kmSE Westport , N 44°37.727’ W 76°21.545’, 4. VI –9.VII. 2005, 134m, S. Peck, 05–02, 4 maple sugar bush FITs (3, SBPC) ; same data except 1–30. IX.2005, 05–05 (4, SBPC) ; same data except: 18. VI –23.VII.2006, 06–07 (7, SBPC) ; same data except: 1–31.X.2006, 06–10 (1, SBPC) ; same data except: 1–31.VII.2003, 03–06, 2 maple sugar bush FITs (4, SBPC) ; same data except: 1–30. VI.2003, 03–04 (1, SBPC) ; same data except: 1–31.VIII.2005, 05–04, 4 maple sugar bush FITs (8, SBPC) ; same data except: 1–30.IX.2006, 06–09 (1, SBPC) ; same data except: 9–31.VII.2005, 05–03 (20, SBPC) ; QUEBEC: Gatineau Co: Chelsea, Adamson Rd. , 12.X–23.XI.2003, H. & J. Douglas, Acer saccharum, Pinus strobus forest, FIT (1, SBPC) ; USA: ALABAMA, Jackson Co.: 5 mi N Garth , 19. V.1972, S. Peck, Ber. #239 (1, SBPC) ; ILLINOIS: Cook Co.: Chicago, Eggers Woods , 41°41.0’N, 87°31.8’W, 23–24.VIII.2002, FMNH Bioblitz, hardwood forest on sand, FIT (2, FMNH) ; Union Co.: Pine Hills Field Station , 15–22. V.1967, J.M. Campbell (1, CNCI) ; INDIANA: Monroe Co.: Bloomington , 29-30.VII.1983, F.N. Young, BLT (1, FSCA) ; MARYLAND: Montgomery Co., Plummer’s I., 25. VI.1911, E.A. Schwarz (1, USNM) ; MICHIGAN: Kalamazoo Co.: Hickory Corners, Gull Lake , 11–14. VI.1981, R. Anderson, intercept (1, SBPC) ; NORTH CAROLINA: Cove Creek , 17. VI.1963, K. Stephan (1, FSCA) ; TEXAS: Brazos Co.: College Station, Lick Creek Park, 16–24.IV.1996, E.G. Riley, 291, bot- tomland forest, FIT (5, TAMU) ; same data except: 288, upland forest (3, TAMU) ; same data except: 13–16.IV.1996, 272, bottomland forest (6, TAMU) ; same data except: 26. V –8. VI.1996, 355 (1, TAMU) ; College Station, Lick Creek Park, 30.55841°N 96.20866°W, 12–24.IX.2010, H. Blackburn, R. Mendez, E. Riley, bottomland forest, FIT-elevated (1, TAMU) ; same locality, 21.III−7.IV.2011, E.G. Riley, bot- tomland forest ground-level FIT (1, TAMU) ; Fort Bend Co.: Brazos Bend State Park , 29. V –18. VI.1999, B. & B. Raber, E. Riley, buckeye-sycamore forest, FIT (1, TAMU) ; same data except: 18.IV–29. V.1999, B. Raber, E. Riley (2, TAMU) ; Wood Co.: Godwin Woods , 3.5 mi. SW Hainesville, 32°42’30”N, 95°24’36”W, 29. V –27. VI.2000, Wm. Godwin, FIT (1, TAMU) ; same data except: 23–30.IV.2000 (1, TAMU) ; VIRGINIA: Fredrkbg. , 26. V.1900, id. H.C.F. 1267 (1, USNM) ; Bath Co.: 9.6kmN Clifton Forge, 13. V –21.VIII.1983, S. & J. Peck, Tsuga-Fagus forest , FIT (1, SBPC) ; Franklin Co.: Blue Ridge Parkway, mi. 154, Smart View , 31. V –20.VIII.1981, 2560’, S. Peck, intercept trap (10, SBPC) ; Bakersfield , forest roads, 25.VII.1992, S. & J. Peck, 92–311, evening car netting (1, SBPC) .

Seasonality. Adults are known mostly from the months of April to September and this suggests that the species is most active in the summer months.

Bionomics. Most collections are from mixed forest on a variety of soils, mostly from flight intercept traps and evening car netting.

Figures

Figure 33. North American distribution of Anogdus capitatus (squares), A. dissimilis (inverted triangles), A. obsoletus (circles), A. potens (triangles).

Figures 1–18. Aedeagi, dorsal and lateral, of Anogdus species. 1, 2) A. capitatus. 3, 4) A. dissimilis. 5, 6) A. fusciclavus. 7, 8) A. insolitus. 9, 10) A. obsoletus. 11, 12) A. potens. 13, 14) A. puritanus. 15, 16) A. sculpturatus. 17, 18) A. secretus. Scale line = 0.30 mm for capitatus, dissimilis, fusciclavus, obsoletus, puritanus, sculpturatus, secretus; 0.35 mm for insolitus, potens.