THE CANADIAN ENTOMOLOGIST 351 



aiistralis show a disappearance or an approaching disappearance 

 of the black spots, leaving only indistinct white spots in their places, 

 or with a small, black dot in the centre. The black spots of 

 aiistralis are, also, more irregular in outline than the more circular 

 ones of behri. Behri is much less variable. 



Type. — One cf from Pasadena, May 20, 1907, by the writer 

 and in his collection. Topotypes will be deposited in the Barnes'' 

 collection. 



Distribution. — -From Santa Barbara (extending north ta 

 Monterey County) to San Diego west of the mountains. This 

 distinct faunal area is known as the San Diegan Faunal District. 

 It occurs from February to June. 



GEOMETRID NOTES. 

 A New Species of Euchl^na. 



BY L. W. SWETT,. BOSTON. MASS. 



Euchlaena albertanensis, sp. nov. 



Expanse 45 mm. Palpi, head, thorax and abdomen pale 

 yellow ashen, primaries of the same colour. Base of primaries to 

 basal line darker than central portion, striated with fuscous. 

 Basal line reddish brown,' making an outward curve to median 

 vein, then running straight to inner margin. Central part paler 

 than rest of wings, finely striated and with small, black, discal spot. 

 Extra discal line brownish, making an outward angle below costa, 

 then running straight to \'ein 3, where there is slight inward curve 

 to inner margin. There is a faint line bordering extradiscal, 

 which separates from it at costa and inner margin. Outer margin 

 darker, as is base, with with pale apical streak and black spot at 

 the end, almost opposite angle of extradiscal line. Fringe pale 

 yellow, outer margin somewhat extended at vein 5. Secondaries" 

 same colour as primaries, only basal portion is lighter yellow. A 

 broad, suffused, brown basal band, discal space very pale yellow 

 and containing round, black, discal spot. Extradiscal line crosses 

 wing at almost right angles, hardly curved. The outer brown shade 

 line makes a projecting blunt jointed loop below discal spQt. 

 Beyond extradiscal line the wing is darker than in the centre of the 

 wing. The fringe is the same (Colour as on the primaries, but there 

 are two deep notches near veins 5 and 6. Beneath primaries 



October, 1917 



