ANNALS 



OF 



The Entomological Society of America 



Volume XV DECEMBER, 1922 Number 4 



NOTES ON FEMALE PARAIULIDS 

 (Myriapods) , with Description of a New Species. 



Henry W. Brolemann, 



Pau (France). 



The material submitted to examination is composed of 

 two species of Paeromopus and of six representatives of the 

 genus Paraiulus. Of the two Paeromopus, one is the well 

 known P. lysiopetalinus Karsch, while the other, being new 

 to science, will be spoken of as Paeromopus Chamberlini and 

 will be described hereafter. The Paraiulus species are P. 

 tiganus Chamb., P. pennsylvanicus (Brandt) Wood, P. immacu- 

 latus Wood, P. impressus Say, P. venustus Wood, and the 

 species recorded by the author (1895) as P. ellipticus Bollman. 

 Most of the Paraiulus specimens have been obtained through 

 the kindness of Ralph V. Chamberlin, of the Museum of 

 Comparative Zoology, in Cambridge, to whom the writef wishes 

 to express herewith his indebtedness. 



It may safely be stated that, on the whole, the study of 

 female Diplopods, and particularly of their sexual organs, 

 has been completely neglected, attention having been almost 

 exclusively devoted to the male copulatory apparatus. H. C. 

 Wood (1865, Trans. Amer. Phil. Soc, XIII) is probably the 

 first author having made use of the vulvas in identifying 

 Paraiulid species. 



The distrust in which the females have been held is probably 

 due to the fact that the male structures happened to be so 

 multifarious and of such constancy as to "afford the easiest 



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