Anogdus secretus (Brown, 1937)

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 : 13

Anogdus secretus (Brown, 1937)

( Fig. 17, 18 , 36 )

Neocyrtusa s ecreta Brown 1937a: 163. Holotype male in CNCI, type number 4156; seen by us. Type locality: Arnprior , Ontario.

Anogdus secretus (Brown) ; Daffner 1988: 278.

Diagnosis. Length (pronotum + elytra) = 1.66–2.20 mm; greatest width = 1.12–1.44 mm. Punctation of head moderately fine, punctures irregularly spaced. Antennal club slender, antennomere 7 distinctly narrower than 9 and 10; antennomere 8 narrow, disk-like; apical antennomere slightly narrower than 9 and 10. Sides of pronotum weakly sinuate before broadly obtuse posterior angles. Pronotum finely punctate; punctures distant on disk, more closely spaced laterally. Elytral strial punctures round and deep, separated by less than one diameter; interstrial punctures finer than pronotal punctures, distantly spaced; elytral epipleura inconspicuously setose. Metasternal anterior margin with a row of large, round, deep punctures about equal in size to the strong, densely spaced lateral punctures. Protarsi and mesotarsi of male with white setae ventrally. Male mesotibia weakly curved; mesotibial process broad at base, acute apically, shorter than large mesotibial spine. Metafemur of moderate width; males with a broad tooth-like expansion near the apex of the lower margin. Abdominal sternites III–VII each with a row of round, deep punctures at anterior margin; these punctures are not clearly visible in all specimens. Median lobe of aedeagus ( Fig. 17, 18 ) cylindrical in basal one-half, dorsoventrally curved, flattened and narrowed apically. Parameres slender, reaching about to apex of median lobe. Internal sac with characteristic elongate, curved sclerite ( Fig. 17, 18 ).

Distribution. Widely distributed from southeastern Canada and southwards into the United States through New York and Virginia to Oklahoma and Texas ( Fig. 36 ). Previously published distributional records in Brown (1937a: 163) and Daffner (1988: 278): CANADA: ONTARIO: Arnprior; Leamington; Mer Bleue bog; Ottawa. QUEBEC: Gatineau Park. USA: NEW YORK: Tompkins Co., Ithaca. OKLA- HOMA: Latimer Co.

New material examined (n=21). CANADA: ONTARIO: Ottawa, Constance Bay , 20–23.VII.1977, M. Sanborn (1, SBPC) ; same data except: 12.VIII.1977 (1, SBPC) ; Leeds-Grenville Co.: 7km SE West- port, N 44°37.727’ W 76°21.545’, 4. VI –9.VII. 2005, 134m, S. Peck, 05–02, 4 maple sugar bush FITs (1, SBPC) ; same data except: 1–31.VIII.2005, 05–04 (1, SBPC) ; USA: OKLAHOMA: Latimer Co.: IV.1987, K. Stephan (1, TAMU) ; same data except: V.1989 (2, TAMU) ; same data except : IV:1990 (1, TAMU) ; TEXAS: Bastrop Co.: 2-5 mi. E jct. 95 on hwy 21, nr. Bastrop , 31.III.1990, E. Riley (1, TAMU) ; Bastrop State Park , 24. V –16.VIII.1983, M. Kaulbars (1, SBPC) ; Brazos Co.: Koppe’s Bridge , 5 mi SW College Station, 10–17.IV.1987, R. Anderson, riparian ravine, FIT (1, SBPC) ; Lick Creek Park, College Sta- tion, 17.IV–18. V.1987, R. Anderson, riparian ravine, FIT (2, SBPC) ; Lick Creek Park, College Station , 7–17.IV.1987, Heraty / Wooley, post oak savannah (3, SBPC) ; Montgomery Co.: Jones State Forest , 9 mi S Conroe, 12.XI.1987, Wharton, Wang, Praetorius, Malaise trap (1, TAMU) ; Robertson Co.: 8 mi E Hearne , 21–27.IV.1991, M. Hallmark (1, TAMU) ; VIRGINIA: Arlington Co .; Four Mile Run , 22–24. V, J.D. Hood Coll. (1, USNM) .

Seasonality. Adults are mostly known from the months of May through September suggesting that the species is active in the summer months.

Bionomics. The collections are from mostly mixed forest, riparian ravines, and post-oak savannah, and were mostly made with flight intercept traps.

Figures

Figure 36. North American distribution of Anogdus secretus (circles), A. superans (triangles), A. rileyi (squares).

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.