108 
PRASINOCYMA. By L. B. Prout. 
eichhorni. 
polluta. 
discopriva¬ 
ta. 
semidisca- 
ta. 
flavilimes. 
approxima¬ 
te! . 
intermedia. 
rufistriga. 
angiana. 
corolla. 
ruficulmen. 
consobrina. 
ruficosta. 
minor. 
flavimargo. 
gigas. 
in rufimargo (4 i), but the paratype has some additional clouding posteriorly to that of the forewing and 
the median area may prove to be as variable as in perpolluta. New Britain: Talasea, March-April 1925 
(A. F. Eichhorn). 2 $$ in Mus. Tring. 
P. eichhorni Prout. Close to perpolluta (4i); costal and distal margins of forewing, slightly more 
rounded, narrowly marked with chocolate; the dentate lines chocolate, not white; the fringes also chocolate. 
Different from all the nearest allies in wanting the abdominal line. Hydrographer Mountains, British New 
Guinea. 
P. polluta Warr. (= bicornuta Warr.) differs from perpolluta (4 i) in having the clouding of the median 
area slight, generally confined to the vicinity of the cell-dot, and especially in that the white lines are not 
dentate. Upper Aroa River ( polluta ) and the Snow Mountains ( bicornuta). 
P. discoprivata Prout (4i) is larger than polluta, with distal margin more oblique, tone rather more 
bluish, the lines finely dentate but very faint, the cell-dot of the forewing only accompanied by a very small 
and faint chocolate mark. — ab. semidiscata Prout has a large blackish, somewhat heart-shaped cell-spot 
on the hindwing. Mount Goliath and the Weyland Mountains. 
P. flavilimes Warr. (13 d). At least as large as discoprivata, distal margin of forewing equally straight 
but rather less oblique, cell-dots redder, lines more sharply expressed, not dentate, the postmedian of the 
fore wing straight. Owen Stanley Range. 
P. intermedia is known in two races. — approximata Protd (4 k) from Mount Goliath is of a rather 
more glaucous green, with the cell-dots enlarged. — intermedia Warr., from the Owen Stanley Range and 
the coastal ranges of Dutch New Guinea, is of a more vivid green, with the cell-dots smaller, the lines 
finer, sometimes extremely slender. 
P. rufistriga Warr. (4 k) and the four species which follow have the white lines edged in the median area 
with red or orange, rufistriga resembles consobrina (13 d) in size, but has the antemedian line straighter, the 
red markings slighter, the fringes buff, not red, the discocellulars of the forwing marked with reddish. Buff 
abdominal line broad. Owen Stanley and Weyland Mountains. 
P. angiana Joicey & Talb. (12 c) is much bluer than the rest of the group, the hindwing differently 
shaped, the lines more yellow. Otherwise nearest to corolla. Arfak Mountains, only the type $ known. 
P. corolla Prout (13 e) recalls a small ruficulmen but has the antemedian line angled outward in the 
middle, the abdominal stripe buff, not reddish. Dutch New Guinea. 
P. ruficulmen Prout (13 e) is recognizable at once by its large size, sharply contrasted markings and 
red-brown abdominal stripe. Dutch New Guinea. 
P. consobrina Warr. (13 d) shares with ruficulmen the red fringes, but is smaller and less white-mixed, 
the costal edge more red, the abdominal line slender and buff, the antemedian line curved, the small black 
cell-dot of the forewing not accompanied by reddish on the discocellulars. Dutch New Guinea. 
P. ruficosta Warr. Intermediate in colour between consobrina and minor (13 d), or nearer to the 
latter; cell-dot green, mixed with black; edging of the white lines slightly darker green than the ground¬ 
colour, hence indistinct; costal edge brighter red than in consobrina. Owen Stanley Range. 
P. minor Warr. (13 d). Was originally described as an aberration of gigas (13 e), but in addition 
to its small size and the straight line of the hindwing it differs in that the hindtibia of the $ has longer 
terminal spurs and retains vestiges of the proximal pair. Mountains of British New Guinea; also from those 
of Dutch New Guinea. 
P. flavimargo Prout (13 d). Still closer to gigas, agreeing with it in hindleg structure and in the 
bent postmedian line of the hindwing and sometimes (though rarely) equalling it in size. I formerly supposed 
it a race, but I find the 3rd joint of the palpus is longer; compared with the 2nd joint its approximate pro¬ 
portions are: in gigas, <$ not quite y 2 , $ slightly over y 2 ; in flavimargo, $ slightly over y 2 , $ 1. Moreover, 
both occur together on the Upper Aroa River, the type locality of gigas. Typical flavimargo was from the 
Snow Mountains. 
P. gigas Warr. (13 e) is the type of the genus, or better subgenus, Gigantothea Prout, distinguished 
by the shortened terminal spurs of the hindtibia and (in the type species, but see minor) the absence of 
the proximal ones. Cell-dots stronger than in flavimargo, lines less fine, the postmedian of the hindwing less 
sharply bent, fringes more tinged with red. British and Dutch New Guinea. 
