IV PROG. ENT. SOC. WASH., VOL. XIV, 1912. 



Notes on Thysanoptera H. M. RUSSELL . . 128 



Descriptions of New North American Thysanoptera 



J. DOUGLAS HOOD . . 129 

 Symphoromyia as a Blood-sucker 



FREDERICK KNAB and R. A. COOLEY . . 161 



Six New Genera of Nearctic Muscoidea C. H. T. TOWNSEND . . 163 



Three New Noctuidse HARRISON G. DYAR . . 167 



More about the Sloth Moth HARRISON G. DYAR . . 169 



New Species of Noctuidse from French Guiana W. SCHAUS . . 170 



Tryphoninse a Review H. L. VlERECK . . 175 



Notes on Nearctic Mantispidse NATHAN BANKS . . 178 



Blood-sucking Insects as Carriers of Human Diseases 



C. T. BRUES . . 180 

 Note on the Avocado Weevil (ffeilipus laiiri Boheman) 



HERBERT S. BARBER . . 181 



Two New Calif ornian Acrolophidse AUGUST BUSCK . . 184 



A New Genus and Species of Gryllidse from Texas 



A. N. CAUDELL. . 186 

 Entomology at the Centenary of the Academy of Natural Sciences 



of Philadelphia H. L. VlERECK . . 193 



Recognition of Palindia merricki Holland HARRISON G. DYAR . . 194 

 A. New Genus of Orthoptera from Guatemala 



T. D. A. COCKERELL. . 195 



A New Species of Tachinidae from Porto Rico . . W. R. WALTON . 198 



Eggs of Cicada lyricen DeGeer HERBERT S. BARBER. . 210 



New Species of Noctuidae from the Guianas W. SCHAUS. . 213 



A New Ulophora from Florida HARRISON G. DYAR . . 218 



A Synonymic Note on the Mymaridre A. A. GlRAULT. . 221 



A Synonymic Note on the Trichogrammatidse . .A. A. GlRAULT. . 221 



A New Injurious Plutella AUGUST BUSCK . . 219 



Blood-sucking Insects as Transmitters of Human Disease 



FREDERICK KNAB . . 219 



New Mexican Acrolophidse AUGUST BUSCK . . 222 



List of Members of the Entomological Society of Washington 224 



