158 THE CANADIAN ENTOMOLOGIST 



very noticeable. The extra-discal line is bordered externally with 

 white, like the intra-discal line, but the extra-discal band runs 

 exactly as in typical grandis. Beyond the extra-discal line the 

 wing is light rust-red to the outer margin, except for the row of 

 white spots, shaded exteriorly with black, which run from costa 

 to inner margin. At veins 5 and 6 there are two, sometimes three, 

 elongated black streaks and below there is a large silvery-white 

 patch. The fringe is light brown with basal line and intervenular 

 black dots arranged in pairs. Hind-wings light ashen with spots 

 on the veins forming an indistinct extra-discal line. There are 

 traces of two line reddish hair-lines running parallel across the 

 wings. Fringe light brown with double spots at margin. Fore- 

 wings beneath smoky brown, the black central band showing 

 through faintly, and a dark brownish band near outer margin. 

 Hind-wings darker than above with black discal dot more con- 

 spicuous. There is an irregular black extra-discal band with dots 

 on the veins. Beyond this, towards outer margin, are two ir- 

 regular, parallel, red lines crossing the wings. 



This variety is very striking and does not resemble typical 

 grandis closely, the latter having the central band fawn brown, 

 as is also the outer border of the fore-wings, and the central band 

 is composed of double extra and intra-discal wavy lines. 



I am not sure that this is not a distinct species, but, realizing 

 the great variability of the Hydriomenas, I prefer to treat it as 

 a variety of grandis. I have placed this species and the variety 

 temporarily in the genus Hydriomena, which seems to be a resting 

 place for mixed genera, until these can be separated more satisfactor- 

 ily by a study of their habits and genitalia. Such species of Hydrio- 

 mena as autumnalis, fuscata and allied forms, constitute a natural 

 group, distinct in markings and in life histories, but no satisfactory 

 separation of the species has yet been made upon a structural basis. 

 The present variety was discovered by my friend Mr. E. H. 

 Blackmore, who called my attention to its distinctness from typical 

 grandis, and suggested the name saawichata. I have never seen it 

 in any other collection, and he assures me it is rare. 



Type cf , Victoria, B. C, May 28, 1914; E. H. Blackmore. 

 Type 9, Victoria, B. C, May 5, 1914; E. H. Blackmore. 

 Paratypes ^ c^, 4 9 , Victoria, B. C, May 28 to June 20, 1914; 

 all in Mr. Blackmore's collection. 



