New records and antennal variation of the elusive Ctenobium antennatum Leconte (Coleoptera: Ptinidae) from Massachusetts and Wisconsin, USA

Rachel A. Arango; Daniel K. Young

doi:10.1649/0010-065X-74.2.337

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New records and antennal variation of the elusive Ctenobium antennatum Leconte (Coleoptera: Ptinidae) from Massachusetts and Wisconsin, USA

Formally Refereed

Authors:

Rachel A. Arango, Daniel K. Young

Year:

2020

Type:

Scientific Journal

Station:

Forest Products Laboratory

DOI:

https://doi.org/10.1649/0010-065X-74.2.337

Source:

The Coleopterists Bulletin. 74(2): 337-339.

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Abstract

Ctenobium LeConte, 1865 (Coleoptera: Ptinidae) was described for a single species, Ctenobium antennatum LeConte, 1865 (Fig. 1). Ctenobium most closely resembles Oligomerus Redtenbacher, from which it can be readily separated—the pro-coxae in Ctenobium are distinctly separated by a parallel-sided prosternal process, and the antennae are clubbed with antennal segments 3–8 serrate to pectinate (Figs. 1–2) (Philips 2002; White 1971). The conical shape and granulate surface of the last visible abdominal segment are also characteristic for Ctenobium (Fall 1905; LeConte 1865).

Keywords

Species distribution, wood-infesting beetles

Citation

Arango, Rachel A.; Young, Daniel K. 2020. New records and antennal variation of the elusive Ctenobium antennatum Leconte (Coleoptera: Ptinidae) from Massachusetts and Wisconsin, USA. The Coleopterists Bulletin. 74(2): 337-339.