Systematif and Biological Notes on Bumblebees (Brcm- 



idae; Hymenoptera) 307 



(Issued March 2, 1U23.) 



Hebard (M(ir(;an) 



New (ienera and Species of JNIelanopli Found within the 

 United States and Canada (Orthoptera; Acrididac). 

 Part IV 49 



(Issued July 25, 1922.) 



North American Acrididae (Orthoptera). Paper One. 

 A Study of the (iroup Achuri, as Found in the United 

 States 8!) 



Paper Two. Tin* (Iroup Hyalopteryges as Found in 



the United States and Canada 103 



(Issued September 25, 1U22.) 



Notes on a Few Interesting Blattidae from Guatemala, 

 with the Description of a New Species (Orthoptera) . 129 

 (Issued September 30, 1922.) 



Dermaptera and Orthoptera from the State of Sinaloa, 

 Mexico. Part I. Dermaptera and Non-Saltatorial 

 Orthoptera 157 



(Issued January 2, 1923.) 



Studies ill the JMantidae and Phasmidae of Panama 



(Ortlioi)tera) , 327 



(Issued March 7, 1923.) 



]\IaLLO(II (J. II.) 



Flies of the Aiithomyriid ( iemis Phaonia KobiiicMu- 

 Dcsvoidy and Related (ienera,, Known to occur in 



North America 227 



(Issued January 12, 1923.) 



SkINNKJI (lIlONJiv) AND W'll.MAMS (K. C., Jji.) 



On the Mah' (ienitaiia of the Larger Hesi)eriid:ic of 



North America \()\) 



(Issued Sepleiidjcr 20, 1922.) 



