REVISION OF BORARIA AND GYALOSTETHUS — HOFFMAN 307 



into obscurity along with F. stricta and was not mentioned again in 

 the Hterature for more than 30 years. 



Twenty years later, Dr. Chamberlin set up the new genus Aporiaria 

 for a new species, texicolens, from southern Texas, without stating 

 how either of these taxa differed from a variety of existing genera and 

 species. In the following year (1939), Dr. ChamberHn published a 

 brief but important paper in which numerous new genera and species 

 were described from the eastern United States. Two of these species 

 were published in Aporiaria as A. Carolina and A. geniculata, both 

 coming from western North Carolina. Neither was compared with 

 any of the small xystodesmids already known from that region. 



Several contributions from Chamberlin's pen appearing in 1943 

 contain major changes and additions to the system. In the first 

 (1943a), the two new species Aporiaria fumans and A. hrunnior were 

 described from eastern Tennessee. The second paper (1943b) con- 

 tains the information that Aporiaria texicolens is a typical species of 

 Rhysodesmus and that, consequently, Aporiaria must be synonymized 

 under the older name Rhysodesmus. Dr. Chamberlin observed, how- 

 ever, that the eastern species described in Aporiaria actually are not 

 congeneric with texicolens, and for them he proposed the new genus 

 Boraria with Aporiaria Carolina as the type species. 



Prior to the publication of the name Boraria, Nell B. Causey (1942) 

 had described Aporiaria deturkiana, a rather aberrant species from 

 western North CaroHna. Somewhat later, I (1950) designated A. 

 deturkiana as the type of the new genus Howellaria, which I think 

 must now be relegated to the synonymy of Boraria. 



In February of 1949, I studied the type series of Nannaria media 

 in the Museum of Comparative Zoology, and the species was brought 

 into its correct genus in the following year (Wray, 1950).* 



The following list of names, arranged chronologically and cited by 

 their original combinations, summarizes the foregoing history: 



Fontaria tennesseensis var. stricta Brolemann, 1896 (North Carolina) 

 Nannaria media Chamberlin, 1918 (Tennessee) 

 Aporiaria Carolina Chamberlin, 1939 (North Carolina) 

 Aporiaria geniculata Chamberlin, 1939 (North Carolina) 



* The original manuscript for the Class Diplopoda in Dr. Wray's second supple- 

 ment to the "Insects of North Carolina" was supplied by me with the nomencla- 

 ture up-to-date and correct as of early 1950. Before publication, however, my list 

 was changed and incorrect combinations and nomina nuda were introduced to 

 the extent that I do not believe that, as published, it should be considered as 

 written by me. It seems preferable to credit the material in question to the 

 authorship of Dr. Wray, even though new nomenclatorial material from my own 

 research is included. 



