150 
SYMMACRA. By L. B. Protit. 
pseudaci- 
dalia. 
idaea. 
specialis. 
inornata. 
aniara. 
phaenomeris. 
inconspicua. 
monotheca. 
genuflexus. 
B. pseudacidalia Sterneck (see Supp.-Vol. 4, p. 26, pi. 4 b). Distinguishable by its whitish ground-colour 
and remarkably Scopula-like facies. The $ is still unknown and may perhaps have 4 hindtibial spurs, in which 
case a transference to Somatina will be necessary; but the very strong reddish hair-pencil of the A hindtibia 
accords well with some Dithecodes. Hindwing very bluntly (scarcely noticeably) bent at the end of the 3rd 
radial. W. China: Tatsien-lu, etc. 
D. idaea Swinh. (16 c) differs in its green upperside, the cell-mark of the forewing black, punctiform, 
of the hindwing white, angular. Face and palpus deep red. Both wings beneath with some rosy suffusion proxi- 
mally. N. India, commonest in the Kliasis, from which it was first described; also recorded from Pahang, Su¬ 
matra and Lombok. 
D. specialis Prout (16 d). Near idaea , the antennal fascicles longer, hair-tufts on the A hindleg denser, 
in part reddened; forewing with apex slightly more produced, distal areole generally very small, cell-dot slightly 
enlarged. Hindwing with a black dot on the white cell-mark; beneath with coarse rust-reddish specialized 
scaling, covering the greater part of the wing. E. Java, recently discovered on Tengger and Ardjoeno. 
B. inornata Warr. (16 c) differs from the two preceding in its brown ground-colour, broad (or double) 
median shade, etc. Underside slightly paler than upper, in the A in part with coarse cinnamon scaling, the 
forewing to beyond middle, the hindwing in costal region. Hindtibia of A with only 1 spur and strong hair- 
tufts. W. Java. aniara Prout is somewhat smaller and darker, the irroration more reddish, the band outside 
the cell less broad, nearly always resolvable into 2 approximated lines, or a line and a narrow shade. Specialized 
scaling of the A beneath perhaps stronger. Tengger and Ardjoeno, in abundance. 
B. phaenomeris Prout (16 c). This and its nearest relative ( inconspicua ) are decidedly smaller than the 
Indo-Malayan Dithecodes and of a greyish rather than green or brown colour. In phaenomeris the areole is double 
(i. e., normal for the genus), with the 2nd subcostal arising from the cell; face brick-red to maroon-purple; 
hindleg in the A glabrous; postmedian line of forewing straightish, of hindwing curved or bent in the middle; 
cell-dot of hindwing small. British New Guinea, the type series from Biagi. 
B. inconspicua Warr. (16 c). Distal areole minute, oftener wanting. Hind femur of A strongly hairy, 
the tibia with strong hair-pencil, the inner spur more or less strongly atrophied. More drab-grey (less fawn) 
than phaenomeris, apex of forewing slightly less pointed, fringe more whitened; postmedian line of both wings 
dentate; cell-dot of hindwing large; underside less reddish than in phaenomeris, less sharply marked; face black 
or blackish. British New Guinea, perhaps at lower altitudes than phaenomeris , the type from Milne Bay. Two 
specimens from Dutch New Guinea (Fak-Fak and the Snow Mountains) have the distal areole better developed 
and perhaps represent a race or races. 
D. monotheca sp. n. (15 g). In size, shape, colour and markings very similar to Symmacra solidaria Guen. 
(16 d), though the green colour is less deep and bluish, more olivescent than in fresh solidaria. Easily distingu¬ 
ished by the simple, 2 -spurred A hindtibia and by the venation of the forewing; the areole, though always 
undivided (exceptional in this genus), is larger than in 8. solidaria, with the 1st and the 5th subcostal arising 
just before its apex, or occasionally the one or the other connate with the 2nd—4th, which are long-stalkecl 
together. Forewing with the postmedian more, its distal pale edging less, developed than in solidaria-, a 
dark terminal line, with whitish vein-dots; fringe fleshy grey. Hindwing with similar distinctions. 
Underside, at least of forewing, slightly suffused with vinaceous or vinaceous-grey, the postmedian line deve¬ 
loped on both wings. Paloe, W. Celebes: Gunong Tompoe, 2700 feet, the type series; also a few r from Lindoe, 
3700, Koelawi, 3100 and G. Rangkoenau. 1800 feet; all collected for the Tring Museum by Mr. J. P. A. Kalis. 
9. Genus: Symmacra Warr. 
Most characters as in Dithecodes, of which it may be regarded as a more specialized development. Dif¬ 
fers in the loss of the proximal spurs of the $ hindtibia and in the subcostal venation of the forewing. Areole 
simple, small, the 5th subcostal separating from the others at or just before its apex, the other 4 very long- 
stalked from its apex, as in Cosymbia. Erected for regularis and obviously accommodating also solidaria and 
its attendant forms, which scarcely differ structurally from the genotype except in their more robust A hindleg. 
Exclusively Indo-Australian. 
S. genuflexus Pimps. (16 c). Generic position doubtful, but if the (unknown) $ is 2-spurred, probably 
best referred here; A hindtibia tufted, 2-spurred, tarsus simple. A minute distal areole sometimes retained, 
1st subcostal stalked with 2nd—4th, but not for long. Aspect of an undersized Tanaotrichia. Only the type 
(believed to come from Sikkim) and a closely similar $ from the Khasis, December 1896, are yet known to me. 
S. regularis Warr. (16 c). In aspect somewhat like a small, dull-coloured Discoglypha, the cell-mark of 
regularis. 
