162 ORTHOLITHA. By L. B. Prout. 



supproxi- 0. supproximaria Strp: f 1 1 b) is similarly coloured to i artata, but is very distinct in the form of the 



mmia. ^-^^q^^^^^ band of the forewing, which shows a single pointed projection distally, herein approaching sinensis. 

 The subbasal and antemcdian lines are both rather strongly bent dislad, and with more or less pointed pro- 

 jections on the two folds. Two very fine lines usually follow the postmedian, running parallel with it, but 

 these are sometimes obsolete. Hindwing rather strongly marked, the postmedian line forming almost a right 

 angle behind the S''^ radial and bending towards the anal angle from the 2"'' median to the margin. The 

 underside also, which in the nearly allied species is almost markingless, is here well marked, being grey-dusted, 

 especially in the basal half and before the subterminal line, and showing a distinct, bent postmedian line. 

 Ferghana to Issyk Kul, about the end of June. — The striking aberration mentioned but not named by Stau- 

 DiNGER, with almost the entire median area of the forewing dark, leaving only a small pale discal and a second 

 fasciata. hindmarginal patch, may be designated ab. fasciata ah. nov. 



sinensis. 0. sinensis Alph. (6 h) is an elegant species, the dark markings standing out sharply on whitish-grey, 



.slightly brown-tinged ground-colour. The coui'se of the lines is somewhat as in supproximaria, but the out- 

 ward bend of the subbasal and the pointed projection in the postmedian are both exaggerated, while the 

 antemedian shows two strong curves on the folds, separated by a sharp angle pointing basewards on the 

 median vein; double discal dot strong. The hindwing is weakly marked, except in the darkest examples. 

 ? smaller and narrower-winged than the cf, otherwise similar. Somewhat variable in depth of colouring, but 

 I know of no striking aberrations. Inhabits the mountainous country of Central Asia (the Thian-shan range, 

 the Kurla and Amdo districts), flying in June. 



appropin- 0. appropinquaria Stgr. (6h) was described as possibly a variety of sartata, from which it diffei's as 



quaria. follows: subbasal band narrower, mostly reduced to a mere line: antemedian straighter (less dentate or undulate), 

 the band which follows it consequently more regular; discal dots united into a longer streak; postmedian less 

 dentate, though otherwise similarly formed. The ground-colour is said to be darker grey, but I do not think 

 this is constant. The hindwing in the ? shows a rather distinct, strongly curved postmedian line The fringes, 

 which in sartata are somewhat chequered, are in appropinquaria more uniformly coloured. S. Ferghana and 

 the Amdo district. 



suhvidnaria. 0. subvicinaria titgy., from the Caucasus, is unknown to me, except from the description and Lederer's 



figure. Similar to ticinaria, for which Lederer mistook it, the median band of the forewing somewhat darker 

 brownish-grey, containing a lighter grey anterior patch; postmedian line quite differently formed, being waved 

 or bluntly dentate, much as in jundata, its anterior part containing 3 short teeth, its projecting middle part 2 

 larger ones, its posterior part 2 smaller; antemedian line also more dentate; first dark line of hindwing more 

 angled (in vicinaria bicurved). 



0. vicinaria occurs in two or three local races, even if the following (burgaria) be not also, as has 

 been suggested, a form of it. In coloration and general aspect it rather recalls a small bipunctavia, but differs 

 markedly in the form of the postmedian line, in the well-developed, scarcely lunulate white subterminal line, 

 the strong apical streak, spotted fringes and several othei' characters. The posterior discal dot of the forewing 

 vicinaria. is often weakly expressed. — vicinaria Dup. (= zumsteinaria Lah.) (6h) is of a clear grey, or slightly bluish 

 grey colour with only a very weak tinge of brown, which appears chiefly in the median band and the 

 subterminal area. The median band is well developed, though enclosing a small pale patch anteriorly. 

 Inliabits S. E. France and Switzerland from May to July, and is well assimilated to the rocks on which it rests. 

 — A short series before me from Syria, from the Leech collection, shows a more brownish tone. The specimens 

 are also on an average somewhat less sharply marked, with less pure white lines following the median band. 

 This form was misidentified as ''proximaria Rhr.'' with which it has nothing to do. I propose for it the name 



brunnescens. of brunnescens subsp. nov. (lib). Whether vicinaria from other Asiatic localities also belongs to this form, I 

 have no means of deciding; Staudinger records the species from the Taurus, N. E. Asia Minor, Transcaucasia, 

 the Ala Tau, etc., but considered the last-named intermediate towards burgaria. Some examples of brunnescens 



hyreanaria. show some approach to the markings of subvicinaria. — hyrcanaria Stgr. is a lai'ge pale form hitherto recorded 

 only from North Persia; distal area of forewing in particular always light, usually with very sharply dark 

 lines following the band. 



burgaria. 0. burgaria Er. (^ bungaria H.-Sch.) (8a) closely approximates to vicinaria and subvicinaria. The edges 



of ttie central area are somewhat more dentate than in the former, but probably less so than in the latter. 

 But burgaria is chiefly distinguished by its whiter colour, the median band of the forewing only darkened at 

 its margins, the discal dots almost or altogether obsolete, the dark shading which in vicinaria accompanies 

 the subterminal line very weak, in part obsolete ; the proximal edge of the median band forms a more regular 

 curve, whereas in vicinaria it is angled in the cell and then almost straight, burgaria inhabits the Ural and 



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