138 



as a good species (1917, C. Ent. XLIX, 68). Recently we examined 

 the so-called "Type" at Rutgers College which as we have already 

 noted (1. c. p. 229) is labelled "Washington Terr." ; this type proves 

 to be not what we figured (1. c. PI. 21, Figs. 4, 5), but a similarly 

 colored form of citrate L. (according to our genitalic slides) which 

 Mr. Swett in his paper (1. c. p. 65) has called punctum-notata Haw. 

 and which is quite common on Vancouver Is. in August ; the speci- 

 men bears out the original description excellently except that the 

 locality is wrong and the size given (lJ/2-1^ in.) is considerably too 

 large; in the same paper however (1881, Bull. Brooklyn Ent. Soc. IV, 

 26-8) we find a similar discrepancy in the size of another described 

 species, Cidaria nocticolata {moHtanata Pack.), which certainly does 

 not expand to 1% in., and further would note that the type of semi- 

 atrata, listed as from Colorado also bears a label "W. T." in the Hulst 

 Coll. It would seem then that this particular paper abounds in inac- 

 curacies and we believe that until further evidence to the contrary be 

 produced it will be best to accept this specimen in the Hulst Coll. 

 as the type of mulleolata and transfer the name to citrata L. For 

 the large truncata form Mr. Swett has already in our opinion given 

 us sufficient names (1. c. pp. 69-70) ; sobria Swett, being the first on 

 the list, may be used for the race collectively. A reference to our 

 figures will show how extremely close the two species are superficially. 

 The above mix-up is only a further illustration of how extremely 

 necessary it is to have an accurate knowledge of type sp)ecimens before 

 attempting to revise a group. 



Dysstroma brunneata Pack. (PI. XXI, Fig. 9). 



After a careful study of the type and a comparison with it of 

 specimens from Ketchikan, Alaska, we believe the species distinct 

 from either truncata or citrata and very closely related to kasloata 

 Tayl. ; the genitalia of our Ketchikan species (which we consider 

 identical with brunneata) shows an entire lack of spines to the Aedoe- 

 agus. We have a single S from Nepigon, Ont., which we also 

 incline to place here, showing that the species extends across the entire 

 continent in northern latitudes. 



Genus Hydriomena Hbn. 



We have recently received a number of specimens belonging to 

 this genus taken by our collector in the Monachee Meadows, Tulare 



