106 
GEOMETEID^. 
dots, the lower one with blackish centre at end of cell : secondaries with a conspicuous sub- 
quadrate dark purplish slate-coloured patch on the abdominal margin just above the middle : 
vertex of head, shank of antennie, and probably the abdomen white. Under surface pearly 
white, without markings. Expanse of wings 31 millim. 
Dharmsala. 
The body of this species has already partly faded to the usual uniform buff tint. 
CHLORORITHRA, gen. nov. 
Nearest to Thalassodes : of the same form and with similar antennae; the palpi, 
however, are bi'oadly fringed and the terminal joint is shorter ; the hind legs are slightly 
longer : in the primaries the upper radial does not form a branch of the subcostal vein, but 
is emitted from the anterior angle of the cell, and the second and third median branches are 
emitted together from the posterior angle of the cell, instead of from a footstalk : in the 
secondaries the discoidal cell is lengthened and prolonged in front, emitting the subcostal 
branches and radial vein separately, and the second and third median branches from 
one point at its posterior angle ; the discocellular veiulet consequently is strongly 
inangulated. 
The only figured species of Guenee's genus (and therefore the type) is T. pUaria of 
Tahiti, specimens of which were acquired in a collection purchased from Mr. Gervase 
Mathew. T. pilaria, which is very imperfectly figured by M. Guenee, turns out to be 
identical with T. opaUna of Darjiling. 
CMororithra fea. (Plate CXXXVI. fig. 9.) 
Somewhat similar to Asthena ondiaata in coloration, very pale olive-green with white- 
bordered testaceous markings ; the wings crossed by four white stripes forming two chain- 
like bands ; the two central stripes bounding the lines of the central belt which have the 
irregular character of those in Taiiaorhinus dimissus ; these lines commencing in the primaries 
in quadrate spots on the costa ; a third similar spot between them ; a triangular spot in the 
posterior angle of the cell, and three white spots also within the central belt ; costa white, 
crossed near the base by four little .greenish strife ; tlie outermost stripe on all the wings 
bounded here and there on both sides by brownish-testaceous spots ; fringes white : antennae 
with grey pectinations. Under surface white : prinjaries with greyish indications of the 
markings of the upper surface : secondaries with a blackish subapical spot. Expanse of wings 
36 raillira. 
Dharmsala. 
Mr, Hocking reared C fea from larvae found on oak [Querciis alba) ; he says that it is 
so much like the flower of this tree as to be with difficulty distinguished from it. 
The neuration of Chlororithra is very similar to that of Pseudoterpna ; but the antennae 
and palpi are quite dissimilar. 
