U»l Tut lA.NAlMA.N »-,.M<>.Mi>l.«>UI8T. 



In Iransaciions of ihc American Eni. Soc., XXXIV, 67-100, 1908. I 

 publislied in conjunction with one of my siudenls, P. S. I)ailinj;ion, a re- 

 vision of the Helomyzida*. The Eccoptomera americana Darl., theiein 

 described is a synonym of li. simplex^ described four years earlier by 

 Coquillett from Nevada, and overlooked by us. The genus Siiigo, Aid., 

 in the same p.iper is a synonym oi Zttgonia, Coq., (Invert. Pacif., 27), and 

 belongs to the (leomyzidu;, as correctly placed by Coquillett. My species 

 ore^ona a|)pears to be distinct from his Jlava ; my iitorea, however, is a 

 GeotnyZii, differing in the dark body colour and bristles, and narrower 

 cheeks. The genus Geomyza has not heretofore been reported from 

 North America, but I have three species from the California region and 

 a single specimen of a fourth species from l^wrence, Kans. Named 

 European specimens of Geomyza in Professor Melander's collection put 

 me right on this genus. My ignorance of the family Geomyzidse was 

 responsible for my mistake ; there is really a close relation between 

 Helomyzid.-e and Geomy/idie, some of the latter having setules on the 

 costa. The main difference is in the auxiliary vein, distinct in Helomyzidae, 

 not so in Ceomyzidnc. I drew the wing of Siligo from a specimen 

 mounted in balsam, wherein the pressure of the cover-glass had separated 

 the auxiliaiy and first veins to an abnormal extent. It was a consolation 

 to read since the discovery of my error that Loew once described a 

 Geomyza litiida, which on examination of the type turns out to be a Leria 

 (Czerny, Wien. Knt. Zeil., XXII, i;6)! 



In Hiologia Centraliamericana, Diptera, I, 342, I described a genus 

 of Dolichopodidie under the name Phylarchui. Not having the currmt 

 numbers of the Zoological Record at hand, I did not know that Simon had 

 used the name for a spider in 1SS8. My fly of course cannot maintain her 

 ground before a spider, hence I propcse the genus I'RO.\R(!llU.S to re- 

 place Phylarchus for the lly. 



In some notes on Scellus{^A\\.. News, X\T11, 135), 1 staled il»al I had 

 collected Scellus jigiiow trunks of trees. The statement was made ffom 

 memory, and I now believe that I never collected it except on walls of the 

 University buildings at Moscow, ^/i/eri/s being the one that frequents pine 

 trunks in this region. Thus my observations correspond entirely with 

 Osten Sacken's. 



In Canadian Kntomologist, XXXVI, 46, I undertook to determine 

 what name should be used in the |)lace of Piilopus of authors, which has 



