GEOMETRA.— THALASSODES. 49 



GEOMETRID.E. 



GEOMETRA, L. 

 Geometra usitata, n. sp. (Plate XXXVI. fig. 3.) 



Wings above pale emerald-green ; fringe white, yellowish at the base ; primaries with 

 white costal border ; two transverse straight white lines, the first at basal fourth, the second just 

 beyond the middle : secondaries crossed by a central white line : body snow-white ; tegular 

 green. Under surface snow-white: primaries with the discoidal cell greenish; the disk, ex- 

 cepting at external angle, bright green, crossed by two divergent green-bordered white stripes ; 

 fringe and costa cream-coloured : secondaries with a straight discal green line followed by an 

 angular green stripe, which is narrowed into a line below the third median branch ; fringe creamy. 

 Expanse of wings 2 inches 4 lines. 



Yokohama {Jonas). 



JODIS, Hiibn. 

 Jodis Clarissa, n. sp. (Plate XXXVI. fig. 4.) 



Wings above silky white, tinted with sulphur-yellow ; primaries crossed by two central 

 divergent grey lines ; secondaries crossed by an abbreviated central grey line : body white ; 

 head and prothorax sulphur-yellow : primaries below with brown discocellulars ; secondaries 

 with the fringe at anal angle bent outwardly, and close to the margin a curved striated fulvous 

 embossed line. Expanse of wings 1 inch 4 lines. 



Yokohama {Jonas) ; Hakodate (Whitely). 



The embossed oblique striated ridge on the under surface is probably a strigillating ap- 

 paratus. 



THALASSODES, GuSnSe. 

 Thalassodes praerupta, n. sp. (Plate XXXVI. fig. 5.) 



Wings above pale sap-green, crossed by two irregular silvery white lines, the outer lina 

 subangulated and zigzag ; a silvery white annulus at the end of each discoidal cell ; fringe 

 whitish sericeous : body white ; vertex of head and prothorax green : under surface without 

 markings ; primaries becoming gradually whiter towards the inner margin ; secondaries white ; 

 body white. Expanse of wings 1 inch 1 line. 



Yokohama {Jonas). 



Thalassodes ambigua, n. sp. (Plate XXXVI. fig. 6.) 



Sordid pale sericeous sap-green, with sordid white fringe ; primaries with costal margin 

 orange ; vertex of head white ; thorax greenish ; abdomen testaceous, with a dorsal series of 

 blood-red spots : body below testaceous ; wings as above. Expanse of wings 1 inch 3 lines. 



Yokohama {Jonas). 



H 



