MESURODES; PENTHEOCHLORA; THALASSODES. By L. B. Prout. 
99 
from the western group I know only 3 $$ in poor condition and I cannot yet say wherein they differ from 
the S. Christoval form named below, patara Druce (11 h) has on the hindwing beneath a very small dark patara. 
apical spot, which does not cross SC 2 . -— niaculifinibria subsp. n. lacks this spot, but has the fringe of both maculi- 
wings heavily dark-spotted at the vein-ends. S. Christoval (type G ); ? Vella Lavella and New Georgia. — fimbria. 
Cynthia Warr. has the spot at apex of hindwing nearly always enlarged and an additional spot developed at cynthia. 
tornus of each wing. The type is said to be from Santa Anna, but this is the prevailing form from Bougain¬ 
ville to Elorida Island. 
G. magnipuncta Prout is scarcely a true Gelasma, as the 1st subcostal of the forewing is stalked with magnipunc- 
the others. 3rd joint of palpus in $ very long. Thus the species altogether resembles an Iodis, except in the ta - 
presence of the G frenulum. Tooth at 3rd radial of hindwing moderate. Expanse 23 mm. Dull grey-green, 
with the usual dentate whitish, dark-shaded lines. Characterized chiefly by the large dark cell-spots. Sarawak 
(type) and Singapore. 
G. (?) papuensis Warr. (Q = subangulata Warr.) (lid). Remarkable for the unusual shape of the papuensis. 
forewing in both sexes and for the strong sexual dimorphism. Face white. Palpus shortish, red. Underside 
whitish green, in places suffused with red and greyish. British and Dutch New Guinea. 
60. Genus : Mesurodes Warr. 
This genus was established by Warren for Meyrick’s erichlora and the G characters remain unknown. 
The palpus is very small and slender. $ antenna not pectinate. Hindtibia with terminal spurs only. Abdomen 
not crested. Venation normal; 1st subcostal of forewing anastomosing with costal; 1st median of hindwing 
stalked with 3rd radial. 
M. erichlora Meyr. (12k) somewhat recalls a $ Gelasma megaloptera (Ilf) with more weakly angled erichlora. 
hindwing and reduced red cell-dots. Fiji. 
61. Genus: Pentlieoclilora Prout. 
Superficially similar to Gelasma, of which it may be a more specialised development. Distinguished 
by the minute palpus, absence of proximal spurs on the hindtibia, which is not dilated, and the wide separation 
of the 1st median on both wings from the 3rd radial. The last character, together with the shape and colouring, 
distinguishes it also from Mesurodes. Only the type species is known. 
P. Utliformis Hmpsn. (14 a). Darker bluish green than most Gelasma, with slightly darkened cell-marks uniformis. 
and with the postmedian indistinctly indicated by white dots on the veins. A scarce species, only known 
from the Nilgiris. 
62. Genus: Tlialassodes Gxien. 
Palpus moderate to long, the terminal joint in the £ always distinct, more or less elongate. Antennal 
pectinations of the G characteristic, long and lax, more or less appressed to the shaft. Hindtibia with all spurs. 
Abdomen not crested. Wings rather thinly scaled, rarely very bright, marked with scattered white strigulation; 
hindwing with abdominal margin long, distal margin angled at 3rd radial, discocellulars unusually oblique, 
so that the cell is much longer posteriorly than anteriorly. 
A moderately large genus, distributed in Africa and throughout the greater part of the Indo-Australian 
Region. The species are for the most part closely similar and their differentiation requires great care. In the 
group with typical markings, attention to the G hindtibia will be of the greatest assistance. 
A. Markings typical. Hindtibia of G not dilated. 
T. quadraria Guen. (11 h). The $ type no longer exists in Guenee’s collection (Oberthur, in litt.) quadraria. 
and its locality was unknown, but the name has been applied to the red-faced Indian species with moderately 
angled hindwing. Occurs also on Penang, Siam, Sumatra, Borneo, Celebes and Formosa. 
T. semihyalina Walk. (= viridicaput Warr.) is generally smaller and has the hindwing only very feebly semihya- 
angled. Range similar, possibly not specifically distinct. lina. 
T. rubellifrons Warr. (12 g) apparently represents quadraria and semihyalina in Dutch New Guinea, rubelli- 
Outer line very slender but rather distinct, rather more distal than in the other forms. - gramrnonota Prout, frons. 
from Rook Island, has the angle of the hindwing rather sharper, the abdomen with always well-developed 
white dorsal line. Known from the Bismarcks and Solomons, perhaps with transitions in eastern New Guinea. 
