Anogdus potens ( Brown, 1932 )

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 : 10-11

Anogdus potens ( Brown, 1932)

( Fig. 11, 12 , 33 )

Leiodes potens Brown, 1932: 205 . Holotype male in CNCI, type number 3227; seen by us. Type locality: CANADA: QUEBEC: Thunder River

Neocyrusa potens (Brown) ; Brown 1937a: 165.

Anogdus potens (Brown) ; Daffner 1988: 281.

Diagnosis. Length (pronotum + elytra) = 2.44–2.80 mm; greatest width = 1.56–1.60 mm. Punctation of head moderately fine, variably spaced. Antennal club variable, of slender to moderate width; anten- nomere 7 smaller than 9 and 10; antennomere 8 narrow, disk-like; apical antennomere smaller than 9 and 10. Pronotum with sides rounded, posterior angles obtuse. Pronotal punctation similar to or finer than punctation of head. Elytral strial punctures round and deep, separated by ±1 diameter; interstrial punctures fine, scattered; elytral epipleura usually setose. Metasternal anterior margin with a row of small, inconspicuous punctures; metasternum in anterior one-half and laterally with shallow, dense punctures. Protarsi and mesotarsi of male bearing white setae ventrally. Male mesotibia variably curved on inner margin; mesotibial process broad at base, narrowing to acute apex, shorter than large mesotibial spine. Male metafemur moderately robust with a narrow to broad tooth-like expansion near the apex of the lower margin. Abdominal sternites III–VII with a row of small punctures at anterior margin; these are inconspicuous on sternite III and not usually visible on sternites IV–VII in dry speci- mens. Median lobe of aedeagus ( Fig. 11, 12 ) broad and deep. Parameres slender, nearly reaching apex of median lobe. Armature of internal sac as in Fig. 11, 12 .

Distribution. Widely distributed in southeastern Canada and the northeastern United States ( Fig. 33 ). Previously published distributional records in Daffner (1988: 281): CANADA: NEW BRUNSWICK: Bathurst (erroneously reported by Daffner as in Ontario); ONTARIO: Algoma Co., Lake Superior Pro- vincial Park; Arnprior; Brent, Algonquin Provincial Park; Mattagami River, Gogema; Pelee Islands. QUEBEC: Thunder River (Riviere-au-Tonniere). USA: MAINE: Paris. NORTH DAKOTA: Pembina.

Note. The record for Nelway, British Columbia in Daffner 1988: 281 is a misidentification of A. insolitus (Brown) .

New material examined (n=18). CANADA: ONTARIO: 28km N Cloyne, Brouns Lake Rd. , 2.VII.1995, S. & J. Peck, 95–10, forest evening carnet, 40km (1, SBPC) ; 6.5km NW Almonte , 45°16’N 76°08’W, 24–25. V.1993, F.W. Grimm, sand dune PT (9, SBPC) ; Barry’s Bay to Bonnechere Road , 7.IX.1991, S. & J. Peck, 91–321, forest road day car netting (1, SBPC) ; Kemptville forest , 29.VIII.1994, S. Peck, 94–24, evening forest road car net (3, SBPC) ; USA: MAINE: Somerset Co.: N. New Portland , 24.VII.1992, S. & J. Peck, 92–310, forest road evening car netting (2, SBPC) ; MICHIGAN: Cheboygan Co .; Indian River , 18. VI.1972, E.J. Kiteley (1, CNCI) ; Chippewa Co.: 3 Lakes Camp, 8kmSE Strongs , 25.IX.1993, S. Peck, 93–82, evening car net (1, SBPC) .

Seasonality. Adults are known from the months of June through September suggesting that the spe- cies is active in the summer months.

Bionomics. The collections are from mostly mixed forest, sometimes on sand soils, and taken with pit traps and 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.