Anogdus fusciclavus ( Fall, 1925 )

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 : 6-7

Anogdus fusciclavus ( Fall, 1925)

( Fig. 5, 6 , 34 )

Anisotoma fusciclava Fall, 1925: 311 . Type male in MCZC, type number 24020, designated by Daffner 1988: 277; seen by us. Type locality: USA: CALIFORNIA: Ojai.

Neocyrtusa sternita Hatch, 1957: 28 . Synonymy with A. fusciclavus by Daffner 1988: 277. Type male in USNM. Type locality: USA: OREGON: Forest Grove.

Anogdus fusciclavus (Fall) ; Daffner 1988: 277.

Diagnosis. Body elongate-oval, convex, reddish-brown. Length (pronotum + elytra) = 2.22–2.40 mm; greatest width = 1.40–1.42 mm. Head punctures moderately coarse, irregularly spaced. Antennal club slender; antennomere 7 distinctly narrower than 9 and 10; antennomere 8 distinct, narrow; apical antennomere distinctly narrower than 9 and 10. Sides of pronotum rounded, posterior angles obtuse. Pronotal punctures fine and distantly spaced, coarser and denser posterolaterally. Elytral strial punc- tures round and deep, separated by ± 1 diameter; interstrial punctures fine, distantly spaced. Elytral epipleura inconspicuously setose. Metasternal anterior margin with a row of large, deep punctures; metasternum with large shallow punctures, laterally with microsculpture. Protarsi and mesotarsi of male widened, bearing dense white setae ventrally. Male mesotibia curved, inner margin serrate; me- sotibial process broad at base, short, triangular. Metafemur moderately slender; male with a triangular expansion near the apex of the lower margin. Abdominal sternites III–VII each with a row of round deep punctures at anterior margin; punctures on sternites IV–VII may not be visible in dry specimens. Median lobe of aedeagus ( Fig. 5, 6 ) elongate, cylindrical, curved dorsoventrally, with flattened apex; paired apices weakly inwardly curved. Parameres slender, apically expanded, reaching about to apex of median lobe. Inverted internal sac ( Fig. 5, 6 ) with elongate, curved structures in basal one-half and a pair of clusters of setae in apical one-half.

Distribution. Widely distributed in the western states of California, Nevada, Oregon, and Washing- ton ( Fig. 34 ). Previously published distributional records in Daffner (1988: 277): USA. CALIFORNIA: Sacramento Co., Sacramento; Ventura Co., Ojai; Los Angeles Co., Pomona; Mendocino Co., 15 mi E. Fort Bragg. NEVADA: Clark Co., Las Vegas. WASHINGTON: Thurston Co., Olympia. Note. The re- cord in Daffner (1988: 277, and figs. 17, 18) from TEXAS: Kerr Co., Kerrville is a misidentification and represents a specimen of A. texanus n. sp., see below.

New material examined (n=1). USA: CALIFORNIA: Orange Co.: Rt. 74, 20kmSW L. Elsinore, Lower San Juan Picnic Area, 11.III–4.IV. 1999, 430m, S.& J. Peck, 99-87, canyon forest FIT (1, SBPC).

Seasonality. Adults are known only from the months of April, June and October suggesting that the species may be most active in the cooler months.

Bionomics. The predominant habitats seem to be in forests.

Note. Anogdus sternita was synonymised by Daffner (1988: 277) but we suspect that it is probably a distinct species because the antennal club and aedeagus illustrated by Hatch (1957: 28) differ from those of A. fusciclavus . We prefer to wait until more extensive material is available from coastal western Oregon and neighbouring regions before making a formal decision on this, and we have not included this distributional record.

Figures

Figure 34. Western North American distribution of Anogdus fusciclavus (squares), A. insolitus (inverted triangles), A. sculpturatus (crosses), A. cochise (triangles), A. huachuca (circles).

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.