CONTRIBUTIONS TOWARD A MONOGRAPH OF THE NOCTUIDiE OF 

 TEMPERATE NORTH AMERICA.— REVISION OF THE SPECIES OF 

 HADENA REFERABLE TO XYLOPHASIA AND LUPERINA. 



BY 

 John B. Smith, 



Professor of Entomology, Rutgers College, iVeio Jersey 



(With Plates xxxvi, xxxvii.) 



As is the case with so many of the Xoctiiid geuera, Radena contains 

 moths of quite diverse habitus and structure and which can not remain 

 associated under the same name. Since I originally prepared the re- 

 vision of the entire genus, considerable new material has come to hand, 

 principally in those groups which are not typical, strictly. Of the forms 

 referable to Xylophasia and Luperina, 1 have nearly all the species, 

 and as they are conveniently separable from the balance of the series I 

 have concluded to present Eadena in fragmentary form, premising 

 that I believe that the genus will be eventually restricted to the species 

 here treated, and possibly Luperina or Xylophasia may take generic rank. 

 In its broad sense i?a(7ena contains moths of small to large size, normal 

 noctuid maculation usually present. Eyes naked ; front smooth ; 

 antennae variable, but usually not pectinated or brush-like; palpi 

 stout, reaching middle of front; tongue long and strong, spiral; legs 

 stout, tibite unarmed ; thorax with divided crest; abdomen with dorsal 

 and lateral tufts ; primaries long and narrow to broad and short, apices 

 rounded to apices acute. The genitalia are also various, and taking 

 the genus as a whole there is no agreement. Taking the extremes, 

 there is very little indeed to suggest generic identity between cuculli- 

 formis and iurbulenfa, and no scientific end can be gained by holding- 

 together such an unnatural association. The genital structure of the 

 male affords a convenient basis for division, those species treated here 

 all agreeing in having the harpes abruptly modified into a trigonate 

 tip, set almost at right angles to the harpe, and inside of this bearing 

 a single corneous clasper of variable length, supplemented in some cases 

 by small secondary claspers attached to the harpes nearer to base. The 

 species are all of good size, the tuftings are distinct, and the habitus re- 

 veals the relationship at a glance. The difterence between Luperina 

 and Xylophasia is in the abdominal tufting, that of Luperina being loose 



Proceedinga National Museum, Vol, XIII.— No. 839. 



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