PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 



issued i 



SMITHSONIAN INSTITUTION 



U. S. NATIONAL MUSEUM 



Vol. 84 Washington: 1937 No. 3020 



SYNOPSIS OF THE PUERTO RICAN BEETLES OF THE 

 GENUS MORDELLISTENA, WITH DESCRIPTIONS OF 

 NEW SPECIES ' 



By Eugene Ray 



The specimens of mordellid beetles treated herein were received 

 for study from the United States National Museum and Prof. S. T. 

 Danforth, of the University of Puerto Rico. All the types of new- 

 species, including those sent by Professor Danforth, are now deposited 

 in the National Museum. 



Four species of the genus Mordellistena were previously known from 

 the island of Puerto Rico. Ten new species are added in this paper. 

 These may be separated by use of the accompanying key. The short 

 subapical ridge on the posterior tibiae is omitted in the notes and de- 

 scriptions. 



Genus MORDELLISTENA Costa 



Mordellistena Costa, Fauna del regno di Napoli. . . , Coleoptera, vol. 1, Mordel- 

 lidae, p. 16, 1853. 



KEY TO THE PUERTO RICAN SPECIES OF MORDELLISTENA 



1. Basal ridge of hind tibiae extending halfway across outer surface 



(fig. 28, h) 2 



Basal ridge of hind tibiae extending entirely across outer surface 



(fig. 28, c) 9 



2. Derm of head and thorax unicolorous 3 



Derm of head and thorax bicolorous 5 



1 Contribution from the Entomological Laboratories of the University of Illinois, no. 182. 



132491—37 389 



