Pnbl 9. II. 1911. PEAESTILBIA; HYPOSTILBIA; AMPHIDRINA. By W. Warren. 205 



filled in with whitish, irregularly dentate; subterminal pale with suffusedly darker edges; orbicular 

 and reniform stigmata with pale annuli externally dark margined, separated by a diffuse dark shade, 

 the former oblique and narrow; hindwing wdiite tinged with brown along termen; in the $ the 

 forewing is more uniformly blackish fuscous; — the form philopalis Grasl., from S. E. France, is smaller, paler, philopalis. 

 with the markings showing up more prominently; -- andalusica Stgr., a Spanish form, is also smaller than andalusica. 

 the typical, but with less distinct lines and markings; — in syriaca Stgr., from Asia Minor, the wings are syriaca. 

 broader, the hindwing as well being much darker; calberlae Failla-Ted., from Sicily, is certainly a good calberlae. 

 aberration: the t+, are blacker in forewing than the darkest $ of the typical form, with the hindwing 

 brightly white. A somewhat local species, found in England, Ireland, Prance, Germany, Spain, Sicily, 

 and in Syria. — Larva green to pale brown; dorsal and subdorsal lines yellowish white, with dark margins; 

 spiracular whitish, with the upper edge grey; on grasses. 



S. faillae Pung. (= anomala Failla-Ted. nee Haw., sicula Stgr.) (4'2 e). Forewing glossy grey, [aillae. 

 suffused with fuscous: the lines as in anomala, but less distinct; the two stigmata defined by black and 

 white at the sides only, the orbicular somewhat triangular in shape, with a well-defined black patch bet- 

 ween them; hindwing glossy grey, suffused with fuscous. Sicily. In this species both wings are broader and 

 shorter than in anomala. 



65. Genus: Praestilbia Stgr. 



Differs from Stilbia, in the shorter, broader forewings and in the serrate antennae of the $; in the 

 hindwing veins 3, -1 are stalked instead of veins 6, 7. Type Praestilbia armeniaca Stgr. 



P. armeniaca Stgr. (48 c) Forewing whitish washed with pale reddish; inner line interrupted, whitish, armeniaca. 

 preceded on costa by a black wedge-shaped mark, edged outwardly" in submedian interval by a black bar 

 indicating the claviform stigma; outer line approximated to termen, double, blackish, excurved above 

 middle and more oblique below with an elongate brown shade beyond it from costa to vein 5; no sub- 

 terminal line, but a row of small black lunules along termen; the two stigmata large and pale, the orbi- 

 cular with a quadrate black spot before it, the reniform with some dark scales beyond it, a V-shaped 

 black mark between them; hindwing whitish, with a brown tinge along termen. This species, described 

 from Asia Minor, occurs also in Greece and Hungary. 



66. Genus: HypostiIl>ia limps. 



Agrees with Stilbia and the allied genera in the anastomosis of the costal vein of hindwing with 

 the cell, but differs in both 3, 4 and 6, 7 being stalked; also the prothorax, and not the metathorax, is 

 shortly crested; the palpi are much longer, upcurved in front of face; the antennae of ^ ciliated. Type 

 Hypostilbia megdstigma Pung. 



H. megastigma Pung. (48c) Forewing pale oenreous densely irrorated with fuscous; the veins darker; megasligma. 

 inner and outer lines marked only by dark points on the veins; the subterminal absent; a row of terminal 

 black and white spots; orbicular and reniform stigmata fuscous, defined by white points; hindwing ochreous 

 white, with slight grey cell mark, and a terminal row of dark striae from apex .to submedian fold. From 

 Lob-nor, E. Turkestan; the $ only is known. 



H. correpta Piing. (42 f). Forewing glossy dark leaden grey; inner, median, and outer lines all correpla. 

 indistinct, diffuse, and. curved, the outer somewhat dentate; subterminal and terminal lines consisting of 

 rows of dark and light spots; reniform stigma alone visible as a faint pale lunule; hindwing uniform pale 

 brownish, with fine dark terminal line. Described from a <$ only from E. Turkestan. 



67. Genus: Ampliidrina Stgr. 



Tongue present; frons smooth; palpi obliquely upturned, short; both prothorax and metathorax 

 slightly crested; the dorsum without crests; the neuration normal. Type Amphidrina agrotina Stgr. 



Sect. II. Antennae of $ ciliated. 



A. amurensis Stgr. (42 f). Forewing greyish white, with dense black irroration and a faint reddish amurensis. 

 tinge; an obscure black streak from base below cell; inner and outer lines rather obscure, double, waved; 

 subterminal pale, preceded by a fuscous shade except at middle and by slight black streaks below veins 7, 5, 

 and 2, angled inwards on both folds; stigmata all defined by black; the claviform large; the orbicular oval 

 and oblique; the reniform with large lobe basew r ards on and below median vein; hindwing whitish, with 

 brown suffusion, especially along termen. Recorded from Mongolia and E. Siberia. 



Ill 27 



