478 



NEW PALAEARCTIC GEOMETRIDAE. 



By LOUIS B. PBOUT, F.E.S. 



Subfamily Oenochrominae. 



1. Egea lysimeles sp. nov. 

 $ , 30 mm. 



Closely related to pellucida Stgr. though larger and somewhat longer 

 winged. Antenna somewhat longer. The branches well developed to 

 at least the 28th joint (both tips unfortunately damaged), whereas the 

 antenna of pellucida is only 26-jointed ; the branches, moreover, rather 

 more slender and lax, more noticeably clavate-tipped. 



Fore wing greyer (less yellow) than in pellucida, the scaling equally 

 sparse and mixed with hair, the scales on an average narrower ; the 

 markings, indistinct in pellucida, are here obsolete, only the costal and 

 distal margins look a little more coloured than the rest, the scaling 

 being here less sparse. Hind wing concolorous. 



Underside the same. 



Central Altai. Type in coll. Joicey, received from Staudinger and 

 Bang-Haas. 



The venation is evidently inconstant, for the fore wing is highly 

 asymmetrical, SC 5 on the left wing branching almost opposite SC 2 , 

 whereas on the right wing (as in all the known pellucida) it is far distal 

 thereto. On the hind wing SC 2 is connate with K 1 ; in two out of the 

 three pellucida it is separate, in one connate. The three originals of 

 pellucida (Tchuja Valley, South-East Altai) passed into Mr. Joicey's 

 possession with the Elwes collection. These two species have more 

 hairy face, palpus, pectus and scaling than typical Egea. 



Subfamily Hemitheinae. 



2. Microloxia therapaena sp. nov. 



3 , 24 mm. 



Face green. Palpus short — apparently rather shorter than in 

 menadiara Th.-Mieg, in which it surpasses the face by the length of 



