Ochsenheimer'i Genera of the Lepidopera of Eur ope. 329 



Genus 89. AC^ENA, Ochs., Treitsch. 



(OuRAPTERYX, Leach, Samouelle, Stephens, Duponchel. 

 URAPTiiRYX, Kirby.) 



Wings, iijiper angle of the superior very acute ; inferior with 

 the middle of the terminal margin truncato-caudate. — Palpi, 

 last joint very small, not surpassing the forehead, which is 

 broad and velvety. — Maxillce very long*. 



Species. Icon. 



l.Ac.Sambucaria, Linn. ...Hiib. Geom. tab. 6. f. 28. (foem.) 



Genus 90. ELLOPIA, Oclis., Treitsch. 



(Ellopia, Phaljena, Stephens. 

 Metrocampe, Latreille, Duponchel.) 



Wings angular or rounded ; the upper always with two trans- 

 verse bands, and the lower with a single one, exactly cor- 

 responding with that nearest the terminal margin on the 

 upper. — Antenna: pectinated in the males, simple in the fe- 

 males. — Palpi slender, scarcely surpassing the forehead. — • 

 Maxilla long. — Larva naked, occasionally with a few scat- 

 tered short hairs ; body elongate, flattened beneath ; head 

 obtuse, rounded. — Metamorphosis in a thin web on the 

 ground, under the surface on trees, or amongst leaves*. 



Both Treitschke and Duponchel divide the four species of 

 which this genus consists into two groups : the first having 

 the wings angular (Fam. A. Tm^sc/?.); the second rounded 

 (Fam. B. Treitsch.) — Duponchel states that M. Latreille 

 formed this genus, under the name of Metrocampe, two 

 years before M. Treitschke gave it that of Ellopia. He 



at intervals with excrescences like knots or buds. — Head depressed, slightly 

 emarginate on the upper part, and not surpassing the first segment. — Me- 

 tamorphosis usually in a slight web amongst leaves." — Lei). '^^ l''ran. torn. vii. 

 part. ii. p. 1.36. 



M. Duponchel adds that the species of this genus are generally fulvous- 

 yellow, rather large, and carry tiieir wings vertically, when at rest, like 

 the diurnal Lepidoptera, exhibiting distinctly the underside, which is more 

 vividly coloured than the upper. 'J'hc lurvte arc principally found in May 

 and June: in .July and August the perfect insect comes forth, and is prin- 

 cipally met witii in woo(!s,but the species Si/ringaria and Kvuni/vmrin prc- 

 I'cr cultivated gardens. 'I"he females arc heavy and sluggish, and seldom quit 

 the tree on which they came forth ; the males are very active, and in con- 

 tinual flight, even during the d.iy-time. Duponchel divides the sjiccies into 

 three groups: 1st grou[), all the wings denticulated; no crescent-shaped 

 marking at the summit of the upper; aluiarin, (ilitirin, aiigiiiaria, erosaiia, 

 drnlfiria. — 2nd groiii), all the wings denticulated ; a crescent at the suinnut 

 of the up[)cr; liinaria, illunnria, i/histrnria.— '.ird group, the wings rather 

 sinuatcd than denticulated ; .ii/riiignria, evom/maria, pcctinaria, 



• Characters from Duponchel. 



N. S. Vol. 6. No. 3u. Nov. 1829. 2 U con- 



