490 

 METROCAMPA Latreille. Plate 5, fig. 11. 



•■ Campoea Lam. (in pari i. An. sans Vert., iii, ICO, 8, 1816." 



Eudalimia Hiil.n. (in pari I, Verz., 286, L818. 



Metrocampa Lair., lam. Nat., I", 1825. 



Ellopia Treits. (in pan >. Schm. Eur., vi (v), 80, 1827. 



Metrocampa Dnp. i in pan I, Lep. France, vii (iv), 122, 1820. 



Fhalwna Stepb., Noraencl. Br. Ins., 43, 1829. 



Campaa Steph., 111., iii. ire. 1831. 



Mcti-ocam/ia Boisd. (in part), Gen. Ind., 181, 1840. 



Dili.. Mil part). Cat., '.'17, 1844. 



ll.-Scb. (in part), Selim. Knr., iii, :!',», 18-17. 

 Eudalimia Steph., Cat. Br. Lep., 168, 1850. 

 Metrocampa Lederer, Verh. Bot. Zool. ties. Wien, 1?."), 1853. 



Guen., l'lial., i, 126, Is-.".?. 



Walk., List Lep. 11. t. Br. Mils., xx, 155, 1860. 



Head with the front narrow, square. Labrum long, triangular. Man- 

 dibles long and slender. Palpi small and slender, narrow, ascending slightly ; 

 third joint minute, pointed, depressed, slightly surpassing the front. Antenna.' 

 well pectinated, simple in the female. Thorax moderately stout. Wings 

 broad, fore wings with the costa convex; apex slightly bordered, slightly sub- 

 falcate. Outer margin distinctly angulated in the middle, being very slightly 

 excavated between the bend and the apex. Hind wings broad ; internal 

 angle subrectangular, even with the tip of the abdomen. Apex much rounded. 

 Middle angle obtuse, a slight scallop between this and the apex. Venation: 

 no subcostal cell ; the first four subcostal venules are long ; the independent 

 vein is situated rather near the sixth subcostal; the posterior diseal vein is 

 very oblique, but not curved as in Ellopia. Legs long, slender; hind tibia} 

 hardly thickened, very long. Spurs slender; hind tarsi but little more than 

 half as long as the tibiae. Abdomen long, very slender. Anal tuft rather 

 long. Coloration: pearly-white, with a greenish tinge; an inner and outer 

 straight oblique line margined without with white. 



This genus, besides being easily identifiable by the pearly-white color 

 of the species, differs a good deal from Therina, to which it is nearly allied 

 in the venation; while the antenna' are scarcely plumose, though the shape 

 of the wings is nearly the same in the two genera. 



Larva. — "Caterpillars elongated, convex above, much flattened below, 

 with lateral filamentous appendages as in Catocala; having three pairs of 

 abdominal feet, of which the first are slenderer and shorter than the second; 

 head flattened in front; living on trees. Chrysalides at the surface of the 

 earth." — Guenee 



Newman states that the caterpillar of M. margaritata "is of a dull olive- 



