Australian Phytophaga. 389 
Head deeply punctured, glabrous; antennz fulvous, 
the inner angles of the five upper joints alone being stained 
with piceous; thorax as broad at its base as the elytra ; 
sides obliquely converging and slightly rounded from 
base to apex, surface coarsely punctured, substrigose, 
rugose-punctate on the sides ; basal lobe slightly reflexed ; 
basal margin narrowly edged with piceous; scutellum 
pale, brownish-fulvous ; elytra broadly oblong, scarcely 
narrowed posteriorly ; surface of each elytron with eleven 
rows of large round shallow punctures, the first row short 5, 
interspaces smooth, nearly flat on the inner disc, convex 
towards the apex, more strongly raised and almost costate 
near the outer margin. 
This species strongly resembles Oryptocephalus minutus 
and its allies, in habit and coloration. 
Ditropidus dimidiatus. 
Subquadratus, rufus, nitidus, antennis extrorsum, pedi- 
bus intermedi, tarsisque anticis rufo-piceis, scutello, 
elytris, metasterno, abdomine, pedibusque posticis nigris. 
Kone: Ty lin. 
Hab.—Northern Australia, Brisbane ? 
Head closely punctured, rugose-punctate between the 
eyes, the latter distant, reniform, front impressed with a 
faint longitudinal groove; thorax as broad at its base as 
the elytra, sides rounded and converging from base to 
apex; upper surface distinctly and somewhat closely 
punctured; elytra slightly longer than broad, slightly 
narrowed posteriorly ; surface strongly punctate-striate, 
interspaces flat, impunctate, three outer interspaces 
thickened, subcostate. 
Ditropidus biplagiatus. 
Subquadrato-ovatus, postice paullo angustatus, niger, 
nitidus, antennis extrorsum piceis, basi labroque rufo-tes- 
taceis, thorace rufo, tenuiter nigro marginato; elytris 
tenuiter punctato-striatis, utrinque plaga magna rufa, 
discum fere amplectente, ornatis ; femoribus obscure rufo- 
piceis aut nigris. 
