( 446 ) 



area from liase of cell to midwing, and an irregnlaily edged curved snbmarginal 

 fascia from vein to inner margin ; hindwing with bnth blotches larger au<l more 

 develo])ed : celi-sjiot of forewing black, distinct. Palpi ochreous fuscous, flecked 

 above with whitish ; face and thorax green ; vertex green, varied with ochreous 

 across the fillet ; abdomen ochreous ; antennae with shaft ferruginous, the pectina- 

 tions black and white ; legs and underside of abdomen ochreous. 



Expanse of wings : 38 mm. 



One (J from Chiriqui. 



Close to Melochlora neis Drnce {Tachyphyle ?) of wliicli it may be a less marked 

 form. 



32. Melochlora vivida sp. nov. 



Forewings : vivid green ; the costa ochreous, with short brown strigae : a 

 straight oblique darker green pale-edged outer line from two-thirds of inner margin, 

 becoming obsolete before reaching the costa ; a brown cell-spot ; fringe green, with 

 a deeper dividing line ; a minute red-brown fleck at apex. 



Hiiulwings : the same, but with the line curved. 



Underside paler green, with no markings but the dark cell-spots, and a blackish 

 smear on the hindwing below the origin of vein 2, which shows through faintly 

 above. Palpi dull greyish ochreous, speckled above with white; face greenish 

 ochreous, edged with white below ; vertex the same ; thorax and patagia green ; 

 abdomen ochreous tinged with green ; beneath whitish ochreous, like the legs ; 

 antennae red, speckled with white. 



Expanse of wings : 24 mm. 



One 6 from Ciudad Bolivar, Venezuela (Klages). 



Resembling opaca Butler, from which it is distinguished by the elbowed 

 hindwiugs and the absence of markings on the underside. Nemoria nigro-apicalis 

 Dogn., from ( 'olombia, is probably allied ; but that species is larger, and the shape 

 of the hindwings is not given. 



Mesothea gen. nov. 



Walker's species Nemoria incertata (= oporaria Zell. Verh. Z. B. Ver. Wien 

 1872 p. 481 =gratata Pack. Mon. Geom., p. 373. t. 10. f. 79) will not fit into 

 any of the existing genera. The c? antennae are not simple, but dentate, with 

 fascicles of cilia, as in the genus Mixocera Warr., with which, however, it does not 

 agree in neuration. In Mixocem veins 6, 7, 8, 9, 10, 11 of forcwings are all stalked 

 together, and 11 anastomoses with 12 ; in incertata vein 11 is free from the cell, 

 approximated to liut not anastomosing with 12 ; 0, 7, 8, 9, 10 are stalked, and 10 is 

 closely ajiproximated to II, without, however, anastomosing with it : besides wliich 

 im-m-tata has a frenulum, while the genus Mixocera has none. The hind-tibiae have 

 terminal spurs only, as in Ilemithea, in which genus incertata might be placed, if 

 the antennae agreed. 



I propose, therefore, to make it the typo of a new genus, Mesothea. 



In the Tranmctiom of the American Entomological Society, 1896, p. 313, 

 Mr. Hulst refers incertata to Eucrostis ; but that genus wants the frenulum. He 

 also states that veins 10, 11, and 12 anastomose. As far as I have seen, they 

 ajjproximate only without anastomosing. 



