166 MESOTYPE; HASTINA. By L. B. Prout. 



more thinly scaled, the fuscous forewing much more weakly marked; basal area a little darkened, followed 

 by a weakly bisected whitish band, which is marked with distinct dark dots on the median and submedian 

 veins; median band rather broader than in staudingeri, somewhat darkened but very ill-defined, much less 

 irregularly shaped than in that species, the pale areas which limit it chiefly marked costally and on the veins, 

 where pairs of whitish dots enclose single dark dots; distal area also with the veins alternately light and 

 dark-marked, an indistinct pale subterminal line present. Hindwing rather more whitish towards base than 

 in normal staiidingeri, the discal dot and postmedian line fainter. Forewing beneath almost uniform fuscous, 

 hindwing more whitish, with traces of darker postmedian line; both wings with distinct cell-spot. Ta-chien-lu, 

 W. China, only the type (cT) known. 



8. Genus: Mesotype Hbn. 



Habitus and most characters as in Ortholitha, of which Guenee made it a section. Face less oblique, 

 antenna in cf simply ciliated, not pectinated, forewing with the distal wall of the outer areole usually obsolete^ 

 as in Catadysme, the S"" subcostal long-stalked with the 1 ^' radial and widely separated from the other 

 subcostals. The only known species is of smaller size than the smallest Ortholitha. 



Widely distributed in the Palearctic Hegion. 



virgata. ^- virgata Hufn. (=lineolata Schiff.) (6 c). Light grey to whitish, more or less dusted with brownish, 



forewing with the lines dark brown; subbasal, antemedian and postmedian nearly straight, the latter followed 

 by 2 or 3 shghtly less straight lines; antemedian accompanied proximally and postmedian distally by a whitish 

 line; discal dot black; an oblique subapical streak present, as in OrtholitJta, the pale subterminal line nearly 

 straight. Hindwing with 2 or 3 brownish lines. Variable in ground-colour and in the median area of the 

 forewing, which is sometimes merely marked with a few fine straight lines, at other times strongly dark- 

 shaded at each side, but almost always shows a slender pale line in the middle; really striking aberrations, 

 imvunctata. however, are i-ather rare. The ? is rather smaller and narrower-winged than the &. — ab. impunctata 

 Petersen lacks the black discal dot of the forewing. — Larva slender, somewhat flattened anteriorly and 

 posteriorly; very variable in colour dorsally, dull pink, brown or olivaceous with dark brown or blackish- 

 green mediodorsal line, thin, interrupted subdorsal line, two dark stripes (the lower almost black) between 

 the subdorsal and the spiracles: ventral surface pale yellow. Feeds on Galium, especially- on sandhills. Pupa 

 rather short and stout, thoracic part strongly rounded, glossy; dark red-brown, abdominal divisions bright 

 light brown. The moth appears in a succession of broods and is widely distributed from Central Europe to 

 Amur and locally abundant. 



9. Genus: Hastina Mo 



ore. 



Face smooth, not protuberant. Palpus quite short, smooth-scaled. Antenna in <f' nearly simple, 

 minutely ciliated. Leg-structure normal. Forewing with distal margin excised between the apex and 3"^ radial, 

 often slightly also behind P' median, thus very prominent in the middle; areole single, | st_4th subcostal 

 stalked from apex of areole, 5"" subcostal arising about from apex of areole. Hindwing with distal margin 

 very strongly dentate at the vein-ends, with the longest teeth at the I ^' and 3'''* radials and the deepest excision 

 between them: discoceilulars oblique, 2"'' radial arising above their middle. 



An- eccentric genus in shape, but otherwise closely allied to the Asthena group. I as not know on 

 what grounds Stauuinger has placed it in the present position. The species are chiefly Indian. Dr. Seitz 

 infoi-ms me that the resting posture resembles that ol the Epiplemids. 



subfalcaria. H. subfalcaria Chr. Dark brown, slightly mixed with yellowish. Both wings with 2 dentate bluish- 



white lines, the proximal beginning pretty exactly in the middle of the costa of the forewing, the distal at 

 beyontl three-fourths, both becoming less distinct posteriorly; the median area, especially at the costa, some- 



