Noctuidae Catocalinae — VlETTE 
147 
simple, oval, with a distinct sacculus; in the 
proximal part of the dorsal area they have 
an asymmetrical formation that arises from 
the costa (Fig. 5 b and c); between this part 
and the sacculus is the valvula; the penis is 
curved, with a great many cornuti and a 
point at its apex on the ventral side (Fig. 5 d) . 
Genitalia 9 : The lobes of the oviporus 
are small, lengthened, and clothed with bris- 
tles, as is the eighth urite which is well de- 
veloped; the anterior and posterior apophyses 
are present; the tergite of the seventh seg- 
ment is very well developed; the ostium bur- 
sae is in the middle of a sclerotized area which 
extends caudad in the shape of a band that 
joins the eighth segment; beneath the ostium 
bursae is a plate that works like a clapper 
and is homologous with the two fused tri- 
angular plates described in the two previous 
species; this plate has a medial notch in the 
shape of a V on its caudal edge; the first part 
of the ductus bursae is sclerotized, becoming 
less heavily sclerotized; the bursa copulatrix 
is, in part, also lightly sclerotized. 
New Caledonia (Marie, Quod): Mont 
Mou (Quod), Western Coast (Risbec). 
Loyalty Islands: Lifu (Marshall). 
New Hebrides: Vate (Turner). 
Also in Samoa. 
Achaea janata Linne 
Fig. 6a-c 
Geometra janata Linne, Syst. Natur., ed. 10, 
p. 527, 1758. 
Achaea janata Linne; Rebel, Hamb. Wiss. 
Anstalt, Jahrb., 2 Beiheft, 32: 128 and 
149, 1915. 
Achaea janata Linne; Collenette, Roy. Entom. 
Soc. London, Trans. 76: 477, 1928. 
Achaea janata Linne; Tams, Ins. of Samoa, 
Lepid. 4: 216, 1935. 
Achaea janata Linne; Swezey, Bernice P. Bi- 
shop Mus. Bui. 186: 171, 1946. 
Achaea janata Linne; Viette, Pacific Science 
3(4): 331, 1949. 
Noctua melicerta Drury, 111. Exot. Ins. 1: 42, 
pi 23, fig. 1, 1770. 
Ophiusa melicerta Drury; Hampson, Fauna 
Brit. India, Moths 2: 494, 1894. 
Achaea melicerta Drury; Hampson, Cat. 
Lepid. Phal. B.M. 12: 536, fig. 124, 1913. 
Achaea melicerta Drury; Gaede, in Seitz 1 1 : 
480, pi. 52 f, 1938. 
Achaea pentasema Prout; Ann. and Mag. 
Nat. Hist. IX, 3: 181, 1919. 
Achaea pentasema Prout; Viette, Pacific Sci- 
ence 3(4): 331, 1949. 
Wingspread 52-60 mm.; length of the 
anterior wings 27-32 mm. 
The head and the thorax are gray, occa- 
sionally mixed with reddish brown; the ab- 
domen is gray. 
The anterior wings typically have a grayish 
brown background color with a basal black 
streak well indicated only in the costal half, 
and an antemedial black line, waved, ob- 
lique; two black spots are on a level with the 
discocellular veins; then comes a blackish 
brown space, between the postmedial and 
submarginal lines; from the costa a dark line 
extends toward the apex; along the external 
margin there is a series of black spots. This 
typical coloration is very variable; the back- 
ground color can be darker, with the brown- 
ish black tracings sometimes being less evi- 
dent, sometimes lacking completely. 
The posterior wings are blackish brown 
with a purplish blue reflection; the base of 
the wings is lighter; a medial white band and 
three marginal spots are placed at the apex 
of the costa, on a level with M 2 and at the 
anal angle. 
Genitalia c? : As in A. serva the tegumen 
has a dorsal excrescence which is densely 
clothed with bristles (Fig. 6a) and becomes 
rostral distad of the excrescence; at the apex 
a sclerotized blade emerges from the bristles; 
the uncus has a normal shape terminating in 
a point; there is a well-developed scaphium 
covered at the extremity with fine hooks; the 
