On the IVIale Genitalia of the Hcsperiichic of North 

 Anieiica. Paper II 28:i 



(Issued K("l)iii;iry 12, 1<»23.) 



Williams (R. C, Jr.) 



(See Skinner.) 



WOLCOTT (A. B.) 



New Species of (\)leoptei-;i of th(' Tribe Clerini, wilh 



Notes on Others ()7 



(l.ssucd .Jiilj' 2'), l«r22.) 



Van Duzee (M. C.) 



The Genus Xiphandrium Loew in North America (Dip- 



tera; Dolichopodidae) 79 



(Issued July 25, 1922.) 



