Xyleborus impressus Eichhoff

Rabaglia, Robert J., 2005, The Validity of Xyleborus impressus Eichhoff (Coleoptera: Curculionidae: Scolytinae) as Distinct from Xyleborus ferrugineus (Fabricius), The Coleopterists Bulletin 59 (2), pp. 261-266 : 263

Xyleborus impressus Eichhoff

( Figs. 3–4 )

Xyleborus impressus Eichhoff, 1868:400 , lectotype $, ‘‘Amer. Bor.’’; USNM, Washington DC; paralectotype $, PAS Warsaw , Poland.

Description. Female: length 2.0– 2.5 mm. Frons, pronotum and elytra as in X. ferrugineus except for the following characters. Declivity sulcate, strial punctures indistinct; interstriae 1 distinctly elevated, 2 impressed; interstriae 1 without denticles, interstriae 3 with three denticles: denticle near base subequal to slightly larger denticle at middle of declivity, an additional small denticle near posterior margin; interstriae 4, 5 and 6 with one or two very small denticles.

Male: not seen.

Material examined. All specimens in Robert J. Rabaglia Collection ( RJRC, Annapolis MD) unless otherwise noted. Alabama: Tallapoosa Co: Dadeville;

Arkansas: Washington Co.: Fayetteville ( CNC), Pulaski Co.: Little Rock; Florida: Alachua Co.: Gainesville, Marion Co.: Bellview ( CNC), Volusia Co.: Enterprise ( MCZ); Georgia: ‘‘GA’’ ( CNC), Chatham Co.: Port Wentworth; Illinois: Washington Co.: DuBois ( CNC, USNM), Champaign Co.: Urbana ( CNC); Louisiana: Grant Parish: Prospect, Caddo Parish: Shreveport ( CNC), Winn Parish: Winnfield ( MCZ), Rapides Parish: McNary, Ball; Missouri: St. Louis ( MCZ), St. Charles Co.: St. Charles ( MCZ);

New Jersey: ‘‘AT Co’’ ( MCZ); North Carolina : Buncombe Co.: Asheville, McDowell Co. ( CNC), ‘‘southern pines’’ ( MCZ), ‘‘NC’’ ( MCZ); Ohio: Lawrence Co.: Ironton, Portage Co.: Ravenna, ‘‘OH’’ ( USNM); South Carolina : Charleston Co.: Charleston ( MCZ) ‘‘S. Carolina’’ ( USNM), Richland Co.: Harbison State Forest, Pickens Co.: Central, Aiken Co.: Savannah River Site; Tennessee: Rhea Co.: Spring City Texas: Kerr Co.: Kerrville ( CNC), Freestone Co.: Buffalo ( CNC), ‘‘TX’’ ( USNM), Belfrage ( MCZ), San Augustine Co.: Broadus, Nacogdoches Co.: Etiole, Harris Co.: Houston, Montgomery Co.: Jones St. Forest; Virginia: Prince Edward Co.: Prince Edward State Forest ( CNC, USNM).

Figures

Figs. 3–4. Declivity of Xyleborus impressus.