60 



C'omstocki. I thought this specimen to be a variety of Moma fallax, 

 but at that time I was unprepared to recognize a species closely 

 resembling M. fallax, but diflfering structurally by the shorter palpi. 

 From F. jocosa, the new species differs by the somewhat larger more 

 prominent eyes, broader head, and thinner and shorter vestiture, as 

 well as by the differences in ornamentation, which are very obvious. 

 The vestiture is not so shaggy, and the head rather more prominent. 

 The costal region is not black and white marked, as it is in F. jocosa, 

 and the orbicular is relatively smaller, while the hind wings differ 

 greatly in appearance. All these characters appear to fall in with 

 what Guenee says of his variety of jocosa, which seemed to him to 

 have the air of a distinct species. The differences which separate 

 the two forms are, however, probably of sufficient imi^ortance to 

 warrant separate generic designations. 



(3.) Feralia februalis, Grote. 



S . — A beautiful species of tlie size of F. jocosa, but more nearly resembling 

 the European Dichonia aprilina, from the stouter thorax and more fusiform 

 abdomen. Ornamentation of the primaries like F. jocosa. Bright apple 

 green. The median transverse lines black, lunulated, with white edging. 

 Ordinary spots large, coucolorous, not completely defined, with white and 

 black edging like the lines. Median shade black, narrow, dentate, not as 

 obvious as in D. aprilina, and the Californian species wants the longitudinal 

 black dash on submedian fold. The true subterminal line is very faint, white, 

 irregular, not as in D. aimlina, with black marks, but with black sinuate 

 streaks on costa, and on internal margin. A distinct, lobed, anteterminal white 

 Bhade band, which is removed from the margin, and looks as if it were the 

 subterminal line itself, followed by the green ground color ; in aprilina this 

 lobing is greenish, and the narrow terminal edge of the wing black between 

 the lobes. The presence of these white lines or bands between the t. p. line 

 and the terminal edge of the wing distinguishes the Californian species from 

 F. jocosa. Fringes distinctly chequered, black and white. Hind wings pale 

 whitish green with concolorous fringes, and two faint transverse lines hardly 

 more than reflected from beneath where they are distinct and divaricate, and 

 where there is a distinct discal mark. Fore wings beneath whitish green 

 with distinct black costal marks, those opposite the inception of the subter- 

 minal most distinct. Thorax bright green with black marks. Abdomen 

 somewhat fuscous, with very slight tufts, anal hairs green. Not improbably 

 to be generically separated from F. jocosa ; the $ is not known to me, and the 

 species seems to agree in many characters with F. jocosa, while differing from 

 Dichonia by the not swollen fore tibiae, more hairy vestiture and shorter palpi. 



Ex2)anse, 35 m. m. Sanzalito, February 12, Mr. Behrens. Col- 

 lection of this Society. 



