Cryptorhynchus fuscatus LeConte 1876:251

Anderson, Robert S., 1807, A Review of the Genus Cryptorhynchus Illiger 1807 in the United States and Canada (Curculionidae: Cryptorhynchinae), The Coleopterists Bulletin 62 (1), pp. 168-180 : 170-172

Cryptorhynchus fuscatus LeConte 1876:251

Natural history. Adults have been collected from poison sumac ( Toxicodendron vernix (L.) Kuntze) vines, under bark of pecan ( Carya illinoensis (Wangh.) K. Koch ), and have been reared from Toxicodendron radicans (L.) Kuntze (as Rhus ) and Acer saccharum Marsh. Blatchley and Leng (1916) report that it has been collected by beating hickory, sifting old leaves, and from dead twigs.

Distribution. Fig. 21 . This species is found in the eastern United States and Canada. State records are AR, CT, D.C., FL, GA, IL, IN, KS, LA, MD, MI, MS, NC, NJ, NY, OH, SC, TN, TX, WV; provincial records are ON, PQ (O’Brien & Wibmer 1982; Bousquet 1991; specimens examined herein).

Diagnosis. Body length 5.0– 7.5 mm ( Figs. 1–2 ). Pronotum with distinct tufts of black scales on either side of middle on anterior margin, laterally and on midline just anterior to midlength; width distinctly narrower than elytra at base, only very slightly wider than long. Femora each with 1 or 2 teeth, if 2 teeth then distal tooth poorly developed and very small. Elytra with concentrations of dark erect scales on intervals 3 and 5 near base and at about midlength. Male ventrite 5 ( Fig. 11 ) with pair of small scale-tufted tubercles situated near basal margin; ventrite 1 longitudinally impressed medially and with pair of raised scale-tufted swellings on each side of midline at apical margin. Aedeagus ( Fig. 16 ).

Taxonomic notes. Images of the holotype of C. fuscatus are available at http:// insects.oeb.harvard.edu/mcz/FMPro?-DB 5 Image.fm&-Lay 5 web&-Format 5 images.htm&Species_ ID 5 5274&-Find

Specimens examined. CANADA. Ontario. Cornwall Forest , 45 ° 02.160 9 N, 74 ° 47.47 9 W, 24.ix.2003, R. Zeran ( CMNC) . UNITED STATES: Arkansas. Pike County, Crater of Diamonds State Park , 13.viii.1988, R. S. Anderson, hardwood berlese ( CMNC) . Florida. Appalachicola , poison sumac vines ( USNM) . Paradise ( USNM) . Liberty County, Torreya State Park , 8.vii.1989, R. Turnbow ( CMNC) , 25 vi.1989, R. Turnbow ( CMNC) . Georgia. Upson County, Mount Pleasant Road, South Yatesville , 30.vi.1992, R. Morris ( CMNC) . Illinois. Allentown Park ( USNM) . Indiana. Tippecanoe County ( USNM) . Louisiana. Tallulah ( USNM) . Williams, under rough bark of pecan (USNM). Baton Rouge Parish, Baton Rouge, DuPlantier Apartments , 4.iv.1983, E.G. Riley ( CMNC) . West Feliciana Parish, Tunica Hills areas, near Tunica , 13.v.1983, E.G. Riley ( CMNC) .

Maryland. Bladensburg ( USNM) . Plummer’s Island ( USNM) . Michigan. Detroit ( USNM) . Mississippi. Meridian ( USNM) . New Jersey. Berkeley Heights ( USNM) . Orange Mountain ( USNM) . Brooklyn ( USNM) . New York. Jamaica ( USNM) . New York City ( USNM) . North Carolina. Balsam ( USNM) . Durham, reared from Rhus radicans (USNM) . Southern Pines ( USNM) . Ohio. Cincinnati ( USNM) . Franklin County, Columbus , 19.v.1980, M. Ivie ( CMNC) . South

Carolina. Florence (USNM). Tennessee. Burrville (USNM). Memphis (USNM).

Texas. Marion County, Caddo Lake State Park , 29.v.1988, R. Anderson ( CMNC) . Virginia. Great Falls ( USNM) . Veitch ( USNM) . Chesapeake County, Northwest River Park , 23.vii.1984, P. Belanger (1, CMNC) . West Virginia. Doomsville, reared from Acer saccharum (USNM) . Taylor County, Meadland (1 mi. N.E.), 25–31.v.1995, M.D. Bombardiere, Lindgren funnel trap (1, CMNC) .

Figures

Figs. 21–25. Maps of distribution of Cryptorhynchus species by state and province only.

Figs. 1–6. Dorsal and lateral habitus of Cryptorhynchus species. Figs. 1–2) Cryptorhynchus fuscatus; Figs. 3–4) Cryptorhynchus helvus; Figs. 5–6) Cryptorhynchus obliquus. Scale bar 5 1 mm.

Figs. 11–15. Ventrite 5 of male Cryptorhynchus species. 11) Cryptorhynchus fuscatus; 12) Cryptorhynchus helvus; 13) Cryptorhynchus obliquus; 14) Cryptorhynchus lapathi; 15) Cryptorhynchus tristis. Scale bar 5 0.5 mm.

Figs. 16–20. Aedeagus of Cryptorhynchus species. 16) Cryptorhynchus fuscatus. Scale bar 5 0.8 mm; 17) Cryptorhynchus helvus. Scale bar 5 1.0 mm; 18) Cryptorhynchus obliquus. Scale bar 5 1.0 mm; 19) Cryptorhynchus lapathi. Scale bar 5 0.8 mm; 20) Cryptorhynchus tristis. Scale bar 5 0.8 mm.