179 



The California!] examples (8. heesitata Gruen.) are considerably larger 

 than eastern examples, with (as Guene'e remarks) the wings more pointed. 

 Length of wing in Californian example, 0.95; in the Maine one, 0.80 inch. 



Larva. — "Mr. Crewe thus describes the caterpillar: 'The ground-color 

 is pale yellowish-green, with two whitish-yellow, central, dorsal stripes ; there 

 are two subdorsal stripes also whitish-yellow; the spiracular stripe is bright- 

 yellow and orange ; the back and sides are occasionally studded with a few 

 black tubercles, and always with a few short, whitish hairs; the belly is desti- 

 tute of markings. It feeds on the common buck-thorn (Rhamnus catharticus), 

 and is full-fed about the middle of June, when it forms an earthen cocoon, 

 and therein changes to a dark reddish-brown chrysalis.'" — Newman's British 

 Moths, 176. 



Herrich-SchaefFer states that in Europe, the larva feeds on the sloe or 

 wild plum, " stone-fruit," and white-thorn. 



The moths fly in June and September in Europe and this country. 



LOBOPHORA Curtis. Plate 1, figs. 14, 14a. 



Tricliopteryx Hubn. (iu part), Verz., 323, 1818. 

 Lobophora Curtis, Brit. Ent., SI, 1825. 

 Acidalia Treits. (iu part), Scum. Eur., vi (ii), 5, 1828. 

 Lobophora Stepb., Nomencl. Br. Ins., 44, 1829. 

 Amailiia Dup., Lep. Frauce, viii (v), 486, 1830. 

 Lobophora Stepb., 111., iii, 27(5, 1831. 



Boied., Gen. Ind., 207, 1840. 



H.-Scb., Scbm. Eur., iii, 178, 1847. 



Steph., Cat. Br. Idb., 199, 1850. 



Lederer, Verb. Boc. Zool. Ges. Wieu, 249, 1853. 



Guen., Phal., ii, 364, 1857. 



Staudinger, Cat., 77, 1861. 



Walk., List Lep. Het. Br. Mus. 



Head large, front broad and full, more so than usual. Palpi slender, 

 varying much in length, usually not extending beyond the front; but in L. 

 viridata of great length, extending beyond the head by a distance equal to the 

 length of the latter; third joint smallj»conical, almost indistinguishable from 

 the second joint. Male antennae very slender, not ciliated, annulated. Fore 

 wings broad and triangular, or long and rather narrow, but the degree of 

 fullness of the costal and outer edge the same: when the wing is long and 

 narrow, the outer edge is oblique ; costa straight ; apex obtuse. Hind wings 

 either short or moderately long, the apex suddenly subacute ; outer edge 

 short, rounded ; at the base of the inner edge of the wing, in the male, a 

 prominent oval or linear swelling. Venation: one, usually two, very unequal 



