Pubi. i. Xil. 1913. ACROBYLA; AETHIA; LASPEYRIA. By W. Warren. 397 



M. plumbizonata Hmps. (74c). Fore-wing luteous ochreous ; inner and outer lines rufous edged with ochreous, plumbizo- 

 the outer strongly excurved beyond cell; a broad band before inner line, a median band passing between the mta - 

 stigmata, and a third beyond outer line, leaden grey; terminal area of the ground colour, with the veins 

 thickly leaden grey; orbicular stigma a dark dot in a pale space; reniform diffuse, a pale, ill defined space; 

 hindwing whitish, grey-tinged in terminal half. Egypt. 



M. costiplaga Warr. (74 c). Forewing dark slaty fuscous ; the median area black ; inner and outer lines black , costiplaga. 

 conversely edged with yellowish white; orbicular stigma a small yellow ringspot; reniform with only the 

 lower inner segment visible, the rest blotted out by a creamy white blotch, which fills up the curve of outer 

 line, except a slaty grey tooth at vein 6; subterminal line slightly paler across the slaty fuscous terminal 

 area; hindwing white with terminal area grey along veins 3 and 4, where the terminal line also shows black; 

 fringe white; head and thorax dark; dorsum white. Egypt. 



67. Genus: Acrobyla Rbl. 



Tongue well developed; frons with a naked corneous spike; palpi with smooth, porrect upwards 

 second segment and porrect pointed third segment; thorax roughly scaled; metathorax with slight crest; 

 wings broad; vein 5 of hindwing strong. Near Metopoceras. Type A. kuenckeri Rbl. 



A. kuenckeri Rbl. Forewing fuscous and brownish on a paler ground; inner and outer lines yellow- kuenckeri. 

 ish, sharply dentate ; stigmata black brown with pale annuli ; subterminal line whitish, indented on the folds, 

 preceded by a brownish band; fringe mottled brown and white; hindwing with basal half white, terminal 

 half blackish; a dark cell mark and fine outer line. Mt. Sinai, Arabia. 



68. Genus: Aethia Hbn. 



Palpi sickle-shaped, upcurved above the head, the slender terminal segment obliquely porrect ; antennae 

 of (J shortly ciliated; frons with slight tuft of scales; thorax and abdomen smooth; forelegs of $ simple; 

 forewing with apex rectangular; hindwing with vein 5 from close above 4. Larva with first pair of prolegs 

 aborted, feeding up in autumn on dry fallen leaves, and pupating in a slight cocoon. Type A. emortualis 

 Setoff. 



A. emortualis Schiff. (= olivaria Bkh.) (71a). Forewing pale ochreous finely dusted with brown; emortualis. 

 inner and outer lines whitish ochreous, nearly straight; a simdarly coloured streak at end of cell; hindwing 

 similar, but without inner line. Larva yellowish brown; dorsal line dark brown; subdorsal lines black; 

 the tubercles black; head small, round, reddish brown with black rim; feeding on fallen oak and beech leaves. ■ 

 Found throughout North and Central Europe, North Italy, Dalmatia, the Ural Mts. ; in Asia Minor, Armenia, 

 the Ussuri district, and Amurland. In the ab. consonalis Spul. the inner line of forewing is wanting; — in consonalis. 

 fascialis Spul. the median area of forewings and basal area of hindwings are conspicuously darkened with grey fascialis. 

 scales. 



A. trilinealis Brem. (71b). Forewing grey, densely and minutely striated with olive rufous; inner, trilinealis. 

 median, and outer lines very indistinct, except at costa; olive brown, inwardly oblique, all slightly waved, 

 the outer bluntly bent below costa; an oblique yellow ochreous straight subterminal stripe, inwardly edg- 

 ed with olive rufous; a dark pale-edged line on discocellular ; fringe concolorous, with a bright pale yel- 

 lowish line at base; hindwing with the two outer dark lines very obscure, the subterminal stripe distinct. 

 Amurland. 



A. helialis Stgr. (71b). Forewing light chocolate grey; outer line in both wings olive brown, out- helialis. 

 wardly edged with whitish, inwardly diffuse ; imier line on forewing only, dark, vertical, usually ill-defined ; in 

 the 2 a very faint lunule at end of cell; a fine terminal line in both wings. Amurland. 



69. Genus: I^aspeyria Germ. 

 Tongue present ; palpi upturned, the second segment thickly haired, the third quite small, depressed ; 



m si 



