150 
PACIFIC SCIENCE, Vol. IV, April, 1950 
Fig. 8. Parallelia prisca Walker: a, tegumen, 
uncus, and anal tube; b, right valva; c, penis; d, 
clapper and ostium bursae. 
Parallelia prisca Walker 
Fig. 8 a-d 
Ophisma prisca Walker, List Lepid. Ins. B.M. 
14: 1385, 1858. 
Parallelia prisca Walker; Hampson, Cat. 
Lepid. Phal. B.M. 12: 558, pi. CCXIX, 
fig. 10, 1913. 
Parallelia prisca Walker; Tams, Ins. of Sa- 
moa, Lepid. 4: 217, 1935. 
Parallelia prisca Walker; Gaede, in Seitz 11: 
482, pi. 53 b, 1938. 
Parallelia prisca Walker; Viette, Pacific Sci- 
ence 3(4): 331, 1949. 
Wingspread 60-65 mm.; length of the 
anterior wings 28-30 mm. 
The head and thorax are reddish brown, 
the legs are gray with the tarsi yellowish 
gray; the abdomen is grayish brown. 
The anterior wings have a dark reddish 
brown background color; the subbasal line, 
which is clearly indicated in the costal half, 
is red-brown, defined on each side by reddish 
ochre; the oblique and sinuous antemedial 
line is red-brown defined on each side by red- 
dish ochre; there is a white spot, more or less 
marked, in the middle of the medial cell; the 
reniform spot is small, defined by a dark edg- 
ing; there is a series of dark red-brown lines 
curved outwardly but becoming perpendic- 
ular at the inferior edge of the wing; these 
lines grow dimmer and dimmer in the mar- 
ginal area till they are almost unicolored dark 
reddish brown; the external margin of the 
wing is a purplish pale gray; in the apical 
area there is an oblique white streak partly 
edging a chocolate brown apical spot. 
The posterior wings are dark gray with 
purplish white-gray medial and marginal 
bands; none of these bands reaches the costa. 
The underside of the wings is more or less 
dark gray with slightly purplish reflections at 
the basis of the posterior wings and is irro- 
rated with black scales. 
Genimlia d : The dorsal p^rts of the 
ninth urite are slightly incurved; between the 
much reduced tegumen and the typical uncus 
is a strong plate (Fig. 8 a) vertically raised 
and abundantly clothed with bristles in its 
rostral part; the valvae (Fig. 8b) are oval, 
and differ from those of the other two species 
in having a kind of clavus toward the base 
and, in the costal half, a sclerotized modified 
formation; the penis (Fig. 8c) is highly up- 
turned, with a strong point at its apex, and 
shows many cornuti. 
Genitalia $ : Similar to the female geni- 
talia of P. redunca but can be distinguished 
easily by the shape of the process on the con- 
duit which is contiguous with the ostium 
bursae, and by the shape of the clapper whose 
caudal edge is deeply notched in its middle 
(Fig. Sd). 
New Hebrides (coll, de Joannis). 
