480 New Palaearctic Geometridae 



pale and feebly marked ; the rest concolorous with fore wing and with 

 the lines present, excepting the antemedian ; cell-dot very small and 

 weak, though longer than broad. 



Both wings beneath rather paler and more glossy, the posterior part 

 of the fore wing (except terminally) lighter ; cell-spots moderate, nearly 

 equal in development ; postmedian present on both wings, but only its 

 costal spot strong ; costal spot on median weakly indicated. 



E. Bokhara : Garm (= Harm), Peter the Great Eange, June. Type 

 in coll. Joicey, received from Staudinger and Bang-Haas . 



Possibly a colour-form of praecisaria, as some ? ? of that species 

 (especially from Kuliab, Afghanistan) rather incline towards it in shape 

 and in the anterior curve of the lines ; the acute median angulation of 

 the antemedian is, however, noteworthy. 



Subfamily Lakentiinae. 



4. XanthorJioe quadrifasiata tannuensis subsp. nov. 

 S , 26—28 mm. 



A small mountain form, with distal area of fore wing and whole of 

 hind wing and underside relatively weakly marked, otherwise varying 

 in the same way as in the name-type. 



North- West Mongolia: Schawyr, East Tannu-ola, 2,500 metres, 

 June. Type in coll. Joicey; paratypes in coll. Joicey and coll. L. B. 

 Prout. Eeceived through Staudinger and Bang-Haas. 



5. Ortholitha dicaea sp. nov. 



3 , 32 mm. (type), 38 mm. (paratype). 



Structure and coloration closely as in propinguata Koll., resembling 

 especially the smaller Japanese race of that species (niphonica Butl.), 

 wings perhaps slightly broader still. 



Fore wing with subbasal and antemedian lines much as in pro- 

 pinguata, very fine and not sharply expressed ; median band slightly 

 greyer than in propinguata, becoming black towards the postmedian 

 line, which in the type is almost perfectly straight, only with the 

 faintest appreciable curve anteriorly ; in the paratype slightly more 

 sinuous, but still much more direct than in propinguata ; outer area 

 light-brown in proximal part, whitish in distal, the subterminal line 

 almost entirely obsolete ; triangular black [apical spot in cellule 7 

 rather small (as in some propinguata), the slightly oblique dash 



