Chrysomelidae of Fiji — Bryant and Gressitt 
13 
thorax less expanded at side, less produced at 
middle of base, and with the elytron having 
ten distinct grooves, all punctured, with only 
the outer two grooves deep. 
Genus ditropidus Erichson 
Ditropidus Erichson, 1842, Arch. f. Naturgesch. 
8 ( 1 ): 120 . 
Pleomorpha Saunders, 1847, Ent. Soc. London, 
Trans. 4(4): 268. 
Broadly ovate. Eyes large, nearly touching. 
Antenna moderately thickened, barely more 
than one-half as long as body. Prothorax 
strongly convex, not distinctly collared api- 
cally or grooved parallel to base, with a 
prominent basal process covering base of 
scutellum. Scutellum scutiform. Elytron seri- 
ate-punctate, hardly grooved, with epipleuron 
broad basally. 
6. Ditropidus punctulatus Chapuis? 
Ditropidus punctulum Chapuis, 1876, Soc. Ent. 
de Belg., Ann. 18 C. R.: LXXX (Australia, 
Fiji). 
Male: Dark reddish pitchy; legs testaceous; 
antenna testaceous with apex slightly dusky. 
Ventral surfaces, legs and antenna with short 
oblique goldish hairs. 
Head finely punctured; frons raised, flat. 
Antenna three-fifths as long as body; scape 
longer than next two segments combined; 
eighth to tenth segments nearly as broad as 
long. Prothorax evenly convex, considerably 
narrowed apically, sparsely and minutely 
.punctured; posterior process bluntly rounded 
apically. Scutellum short, scutiform. Elytron 
with ten rows of small distinct punctures, the 
largest punctures somewhat longitudinal, and 
nearly as long as interspaces longitudinally. 
Pygidium finely punctured; ventral surfaces 
moderately punctured. Length 1.5 mm.; 
breadth 1 mm. 
lau: Mvana, Vanua Mbalavu, 60 m., Aug. 
1938, Zimmerman, three males. 
7. Ditropidus tibialis Chapuis 
Ditropidus tibialis Chapuis, 1876, Soc. Ent. de 
Belg., Ann. C. R. 18: LXXIX (Australia, 
Fiji). 
This species was recorded long ago from 
Fiji, but seems to be lacking in the present 
collection. 
DISTRIBUTION: Southeastern Australia, Fiji. 
Genus pycnophthalma Maulik 
PycnophthalmaWLzvXik , 1929, Insects of Samoa 4 
(3): 180 (type: P. tutuilana Maulik; Samoa). 
Body ovate. Eyes large, touching each 
other on upper side of head, deeply emar- 
ginate. Antenna 11 -segmented, extending al- 
most to the middle of the body; six apical 
segments thickened. Pro thorax narrow in 
front; base not margined, edge with serra- 
tions, part opposite scutellum produced into 
a lobe which ends in an acute point; side 
margined, anterior and posterior angles 
rounded. Scutellum visible from above, nar- 
row, oblong with rounded apex and base 
fitting against point of prothoracic lobe. Ely- 
tra not broader at base than prothorax, each 
punctate-striate, punctures deeply imbedded 
in grooves, striae appear at least on discal area, 
to be inclined toward the suture. Viewed from 
above the pygidium not exposed. Underside 
with intercoxal process of prosternum almost 
quadrate or slightly longer than broad, with 
surface rough and coarsely pitted; sides mar- 
gined, and posterior edge widely arched. Epi- 
pleuron of elytron broader at base and nar- 
rowed from middle to apex. Legs fairly stout, 
not long, so that when withdrawn they are 
not visible from above. Claw segment of tar- 
sus projecting a little beyond bilobed seg- 
ment; claws appendiculate. 
KEY to FIJIAN species of Pycnophthalma 
1. Scutellum not completely hidden; dor- 
sum pitchy reddish to bronzy, with 
silvery and golden to grayish pubes- 
cence 2 
