THE CANADIAN ENTOMOLOGIST. 195 



GEOMETRID NOTES— TWO NEW HYDRIOMENAS. 



BY L. W. SWETT, BOSTON, MASS. 

 (Continued from page 164.) 

 Hydriomena transfigurata^ nov. sp. 



Palpi moderate ; expanse of wings 29-30 mm. 



Colour of fore wings greenish gray, in faded specimens yellow or 

 reddish mixed in with the green. Possibly there are red and yellow 

 varieties in series. The fore wings are quite pointed, much more so than 

 in H. auiunmalis, and the hind wings are quite dark. Basal band in fore 

 wing black, running diagonally from costa to inner margin, with a slight 

 projection at R. The basal band is more regular than in autiimnalis, and 

 the space between is greenish gray, where in aidumnalis it is clear gray. 

 The mesial band of iransfigurata is broader than in most species of 

 Hydriomena, and the usually characteristic watery, irregular central band 

 is almost lacking or can be just faintly discerned. The general colour of 

 the entire mesial band is green, with scarcely any central band, or, if 

 present, represented by a round spot or series of spots. Outer or intra- 

 discal band quite regular, running diagonally, almost directly from costa 

 to inner margin, which it strikes farther out than in antumnalis. There is 

 also a tendency in almost every specimen for the intradiscal line to unite 

 with the extradiscal at Ci and Cg. Discal space greenish gray with linear 

 discal line. The extradiscal line is irregular, and is farther in from the 

 apex of the wing than in autunmaiis. It has also a tendency to unite 

 with the intradiscal line near the inner margin. Outer marginal space 

 greenish gray, with a faint trace of a black, irregular, watery line, which is 

 narrower than in autu??maiis, and appears as a mere trace, where in 

 autumiialis it is very striking. 



Hind wings quite dark and smoky gray, the usual two dark lines 

 hardly visible. 



Beneath, the markings of the fore wings shows through faintly ; 

 general colour ash-gray, speckled with black atoms. On the hind wings 

 only the extradiscal lines show, and these but faintly. 



This is a very peculiar species, quite distinct from autumnalis. It 

 resembles califor?iiata Pack, closely in some respects, but differs in the 

 time of its appearance, as well as in the markings. 



My attention was first attracted to this species by a unique specimen 

 from Newfoundland, taken by Mr. Owen Bryant in early August, which I 

 could not associate with any other. Later, my friend, Mr. William Reiff, 



June, 1912 



