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1 June 2009 A Review of the Species of Geraeus Pascoe and Linogeraeus Casey Found in the Continental United States (Coleoptera: Curculionidae: Baridinae)
Jens Prena
Abstract

The baridine weevils with a smooth inner mandibular face and unmodified antenna are reviewed for the continental United States. Toxeres Germar 1829, a new synonym of Geraeus Pascoe 1889, is suppressed as a nomen oblitum and Geraeus is conserved as a nomen protectum. Pycnogeraeus Casey 1920 is a new synonym of Geraeus; Pachygeraeus Casey 1920 is a new synonym of Linogeraeus Casey 1920. Ten species of Geraeus and 11 species of Linogeraeus are recognized in the study area. Geraeus coarctatus Champion, G. nimbatus (Casey), Linogeraeus crucifer (Champion), L. squamirostris (Champion), L. tonsilis (Boheman), and L. urbanus (Boheman) represent new United States records. Geraeus minor Prena, G. pannuceus Prena, G. petilior Prena, and Linogeraeus appalachensis Prena are described as new species. Several species appear to have been dispersed by man since the early 1900s, but lack of taxonomic expertise prevented the systematic monitoring of their range expansions. New combinations are Linogeraeus crucifer (Champion), L. squamirostris (Champion), L. tonsus (Champion), and Oligolochus bracatoides (Blatchley) (all originally assigned to Geraeus). The following new synonymies are proposed: Geraeus modestus (Boheman) (= Centrinus striatirostris LeConte, C. tortuosus Casey); G. penicillus (Herbst) (= Balaninus pistor Germar, Centrinus dilectus Harris, Centrinaspis tomentosa Casey, C. rhomboida Blatchley); G. picumnus (Herbst) (= Centrinaspis perpusilla Casey, C. argentis Blatchley); Linogeraeus capillatus (LeConte) (= Centrinus clientulus Casey, Geraeus submaculatus Champion, G. puerulus Champion, Centrinaspis repens Casey, C. segregans Casey, C. hilaris Casey); L. crucifer (Champion) (= Geraeus octomaculatus Champion); L. finitimus (Casey) (= Centrinus clarescens Casey, Centrinaspis aequalis Casey, C. furtiva Casey,

Jens Prena "A Review of the Species of Geraeus Pascoe and Linogeraeus Casey Found in the Continental United States (Coleoptera: Curculionidae: Baridinae)," The Coleopterists Bulletin 63(2), 123-172, (1 June 2009). https://doi.org/10.1649/0010-065X-63.2.123
Received: 18 September 2008; Accepted: 1 January 2009; Published: 1 June 2009
JOURNAL ARTICLE
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