The rare genus Myoplatypus (Coleoptera: Curculionidae: Platypodinae): three new species, new reports, and first records for South America Author Kirkendall, Lawrence R. 0000-0002-7335-6441 Department of Biological Sciences, University of Bergen, Postbox 7803, N- 5020 Bergen, Norway lawrence. kirkendall @ gmail. com; https: // orcid. org / 0000 - 0002 - 7335 - 6441 lawrence.kirkendall@gmail.com Author Atkinson, Thomas H. 0000-0002-9675-8507 University of Texas Insect Collection, 3001 Lake Austin Blvd., Suite 1.314, Austin, Texas 78702, U. S. A. thatkinson. austin @ gmail. com; https: // orcid. org / 0000 - 0002 - 9675 - 8507 thatkinson.austin@gmail.com text Zootaxa 2023 2023-09-27 5351 3 301 321 http://dx.doi.org/10.11646/zootaxa.5351.3.1 journal article 10.11646/zootaxa.5351.3.1 1175-5326 8391656 9CDE9F38-A41E-4295-9F26-56E3FD90F0D3 Myoplatypus biprorus (Blandford, 1896) ( Figs 1 , 7 ) Platypus biprorus Blandford, 1895: 109 . Myoplatypus biprorus (Blandford) : Wood 1993: 279 . Platypus querceus Wood, 1971: 251 new synonymy . New record. “ COSTA RICA : Puntarenas Prov. , Coto Brus, Est. Biol. Las Cruces, 1,100 m , 8° 47’ N 82° 57’ W [8.78, -82.95]; Eciton burchelli colony #1, sampling of stationary phase bivouac in a hollow log, 10 Apr 2002 , A. Tishechkin” ( 1 male , LSAM) [ Eciton burchelli is an army ant!]. Taxonomy. We have examined the male holotype and male and female paratypes of Platypus querceus (NMNH) and three male specimens from Mexico identified by K. E. Schedl as Platypus biprorus . we have also compared these specimens with syntypes of Platypus biprorus (NHMUK) . From comparisons for both sexes, these are clearly the same species. Wood described M . querceus as new and as differing from M . biprorus in size and in small details of the male frons and of the elytral disc and declivity in both sexes, plus as differing in distribution. The small morphological differences he describes are typical of minor intraspecific variation. As with P. sicarius, Wood overlooked transferring P. querceus to Myoplatypus when he erected the genus. In the original description, he characterizes M . querceus as being very similar to M. biprorus , so M . querceus clearly should have been incorporated in the same genus as M . biprorus (consistantly spelled “ biporus ” in Wood 1971 , Wood 1993 and Wood & Bright 1992). Distribution. Mexico to Panama : the widest range of any Myoplatypus . Specimens of M . querceus were collected in Panama (one series) and Costa Rica (two series) by S. L. Wood, at elevations ranging from 1300–1900 m . All were taken from oaks ( Quercus ). Specimens of M . biprorus have been collected in Guatemala and Mexico (http://www.barkbeetles.info/beetle_pix_tax_index.php#myoplatypus). As with M . querceus , the only host recorded for M . biprorus is Quercus .