Chrysomelidae of Fiji — BRYANT and GRESSITT 
37 
Ovate, compact; eye small; antenna slen- 
der, flattened distally; prothorax transverse, 
nearly as broad as elytral base; elytron irreg- 
ularly punctured; dorsum pubescent; middle 
tibia emarginate preapically; hind tibia hardly 
emarginate; claws bifid. 
Except for Fiji, this genus has been recorded 
only from Samoa. The Fijian species are rather 
dissimilar in size and appearance from the 
type of the genus, but some of the Samoan 
species seem to be intermediate. The Fijian 
species resemble Trichostola in appearance, 
and in some characters, but probably belong 
.more properly in Stygnobia. 
KEY TO FIJIAN species of Stygnobia 
1 . Body largely reddish or purplish brown 
to slightly metallic 2 
Body generally metallic greenish or 
bluish 4 
2(1). Reddish brown, rarely almost pitchy; 
prothorax nearly as broad as elytra, 
closely punctured, but not subrugose; 
length 2 mm. 3 
Purplish brown to pitchy; prothorax 
narrower than elytra, very densely 
punctured; length 3 mm evansi 
3(2). Dorsum generally with golden pube- 
scence, which is fairly brief on pro- 
notum; central and basal portions of 
pronotal disc with interpunctural areas 
raised, almost ridge-like, and the punc- 
tures somewhat in rows converging 
towards center of base oconnori 
Dorsum with white pubescence, which 
is rather long on pronotum and side of 
middle of elytron; central and basal 
portions of pronotal disc with inter- 
punctural areas fairly flat, and the 
punctures somewhat in longitudinal 
rows which do not converge. . albiseta 
4(1). Prothorax rather distinctly margined at 
side 5 
Prothorax somewhat feebly margined 
at side, very closely punctured; elytron 
a little less densely punctured; blackish 
to greenish or bluish; length 2-2.4 
mm. metallica 
5(4). Length less than 2.5 mm 6 
Length more than 2.5 mm.; purplish 
bronzy above, with silvery to golden 
pubescence; legs, including femora, 
generally reddish elliptica 
6(5). Elytron somewhat vertical at side, more 
or less ridged behind humerus; pro- 
notum very densely punctured 7 
Elytron almost evenly declivitous at 
side, hardly ridged behind humerus; 
prothorax distinctly narrowed and de- 
clivitous anteriorly at side; pronotum 
rather finely punctured; body length 
less than 2 mm nandarivatu 
7(6). Prothorax about as broad as elytra, 
rather distinctly pubescent; dorsum 
generally green to golden green 
leveri 
Prothorax slightly narrower than ely- 
tra, feebly pubescent; dorsum generally 
bronzy ovalaua 
46. Stygnobia evansi (Bryant) n. comb. 
Trichostola evansi Bryant, 1942, Ann. and Mag. 
Nat. Hist. Ser. 11, 9: 510 (Bucalevu; type in 
Brit. Mus.). 
Metallic with a purple tinge above, black 
beneath; clothed with fine gray pubescence; 
six basal antennal segments flavous; tibiae 
and tarsi fulvous. Head finely punctured, a 
transverse impression between eyes; antenna 
slender, third to sixth segments slender and 
subequal, last longest and acuminate; pro- 
thorax transverse, rounded at side, strongly 
and evenly punctured, clothed with fine pu- 
bescence; elytron parallel-sided, rounded 
apically, strongly and evenly punctured, 
clothed with fine gray pubescence, a slight 
depression below humerus. Length 2.5 mm. 
viti LEVU: Naivithula, Tailevu, Sept. 1937, 
Valentine; Nandarivatu, Sept., Tholo-i-suva 
and Belt road 25 km. west of Suva, July 1938, 
