Insecutor Inscitiae Menstruus 



A monthly journal of Entomology, edited by Harrison G. Dyar and 

 Frederick Knab. 



Subscriptions and matter for publication should be addressed to Harrison 

 G. Dyar, 804 B Street SW., Washington, D. C. 



Authors' separates will be furnished at cost on orders accompanying the 

 manuscript. 



Contents of Vol. VI, Nos. 4-6, April-June, 1918 



Page 

 The Male Genitalia of Aedes as Indicative of Natural Affinities. By 



Harrison G. Dyar 71 



A Revision of the American Species of Culex on the Male Genitalia. 



By Harrison G. Dyar 86 



A Note on the American Species of Mansonia. By Harrison G. Dyar 112 



A New Physothrips from Western Africa. By J. Douglas Hood 116 



STANLEY SEARLE8. PRINTER, 19 RANDOLPH PLACE N. W. 



